CZ2000908A3 - Air conditioning apparatus and method of closing thereof - Google Patents

Abstract

The device consists of a cylindrical hollow body (8) which is in the housing ------- its circumferential edge has a system circumferentially ------- spaced radial holders (98) adapted for locking the peripheral radial sleeves (97) formed at appropriate spacing along the circumference of the open end cover (9). One of the radial sleeves (97) is in the housing (9) a guide sleeve is provided parallel to its longitudinal axis (152), in which the plug-in is movably mounted a latch (151) provided on its face adjacent to the radial a sleeve (97) with a latch extension (162) for blocking the radial holder (98) in the radial sleeve (97) and thereby covering the entire housing (9) on the housing (8). When closing the body (8), the its open end is covered by the cover (9) so as to be radial the sleeves (97) of the cover (9) have reached the level of the radial holders (98) the body (8). Turning the cover (9) on the body (8) subsequently radial holders (98) with radial sleeves (97). After reaching the end position the engagement latch (151) is inserted in its engagement a guide bush (152) in the direction of the body (8), wherein latch extension (162) latch latches (151) blocks one of the radial holders (98) in the adjacent radial the sleeve (97), thereby simultaneously securing the cover (9) to the opposite disconnection with the body.

Description

Technical field

This application essentially follows US 08/928 682, filed September 12, 1997. The entire contents of this application US 08/928 684 is hereby incorporated by reference.

The invention is in the field of air purification devices and air cleaners. More particularly, the present invention relates to air purification devices whose housing consists of two parts which together enclose the air filter element. The invention relates to a preferred embodiment of securing the two housing parts to one another.

The invention also relates to methods

BACKGROUND OF THE INVENTION

Air purification devices are generally and widely used in connection with the air supply, for example to internal combustion engines. Air purifiers are used on equipment such as heavy duty heavy duty trucks, construction machinery (such as graders, bulldozers or excavators), agricultural machinery (such as tractors or harvesters), off-road vehicles, buses, light trucks, cars, special machines (eg forklifts or loaders)

and other types of machinery (such as grass tractors).

In the engines of the above systems, air cleaners are generally used, which may vary in size and capacity, depending on the system. For systems using eight-inch air cleaners, the engines typically have a capacity of about 5 liters, and typically have a power of about 100 horsepower.

The purpose of the air purification device of such systems is to control the air fed to mine in order to protect the engine components from damage. Air purification devices typically comprise a housing in which removable and replaceable filter elements are located. These filter elements have a generally circular or cylindrical configuration in a number of systems and operate in a forward flow, i.e., filtering, flow from outside the filter element to its interior.

For the above-mentioned machinery, airflow velocities are often used for air purification of the order of about 30 to 350 cfm (about 0.8 to 10 m ³ / min), depending on Whether the engine is idling or loaded. In order to maintain the required filter life and filter efficiency, space constraints must be observed, with filter elements typically having a diameter of the order of 3.0 to 8.5 inches (about 75 to 210 mm) in the above devices. Such filter elements typically have a weight of from 200 g to 1200 g when new, clean, and can weigh up to three times or more during use.

The air purifier shells have a diameter of at least 4 to 10 inches (about 100 to 1000 mm) and a length of 7.5 to 24 inches (about 100 to 600 mm), such dimensions being for the devices relatively common. In particular, an arrangement according to the invention has been developed for use in such air purifiers as just described above. Thus, the present invention is particularly intended for such systems, although it may be used with other systems.

Air cleaners of the type described above must be serviced regularly and routinely. In some cases, the filter elements have to be removed and either cleaned or replaced. Also, in some cases, the internal chambers of the air purification device must be cleaned of materials such as leaves, dust, and the like. In order to facilitate installation and operation, the air purifying devices are designed so that they can be opened and the individual elements can be removed.

For ease of assembly and operation, the air purifier sheaths are typically constructed from two main parts: a main body member and a housing. The cover is usually threaded-mounted on the sealing portion to close the air cleaner housing. In air cleaners of the above type, a variety of configurations have been used to attach the cover to the air cleaner housing, including, for example, screw systems, metal latches, or plastic latch arrangements.

U.S. Pat. No. 4,333,580 discloses an underground vault provided with a two-piece sheath with a rotatable activating closure device.

DE 33 36 882 discloses an air cleaner with a rotatable closing mechanism. This swivel

the closing mechanism is provided with a sliding screw and a retaining band.

Summary of the description of patent application US 08/928 684

In accordance with the description of patent application US 08/928 684, an air purifying device has been developed. The air purification device generally comprises a body member and a removable cover. The device is provided with a closure device for selectively attaching the removable cover to the body member. A preferred closure device is a rotatable closure device. That is, the cover is secured in engagement with the body member and is released therefrom as a result of the selected rotational movement of the cover relative to the body member.

In a preferred embodiment of Item ^{1 of} U.S. Patent Application Serial No. 08 / 928,684, the closure device is designed such that movement between the closed position and the open position occurs as a result of the relatively small rotational movement, of the order of only about 5 ° to 25 °.

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US 08/928 684 are positioned so that no part thereof is directly exposed to the environment when the system is closed, i.e. when the cover is attached to the body member. That is, when the cover is attached to the body member, the constituent parts of the closure device are located below the cover so that they are not directly exposed to the external environment or external elements. That is, the housing preferably does not contain any openings directed through the closing device. This means, among other things, that there is little chance of snow, ice, road asphalt, mud, and so on.

As used herein, the term "inner closure device" means that the closure device is located or contained below a protective outer surface or an outer surface of the housing that has no openings when the closure device is assembled and closed. As used herein, the term "internal" refers to protection under any part of the housing and / or body member since there is no direct external exposure through apertures or the like.

In typical arrangements, the body member defines an open interior of the air cleaner and includes an inlet of air flow. This flow air inlet is usually a side inlet, although other alternatives are possible. The body member is generally provided with a side wall and an end wall. The side wall is sized to accommodate at least a portion of the removable and replaceable air filter element during use. The insertion of the air filter element into the body member occurs through the open end defined by the side wall.

The arrangement of an air cleaner according to the patent application.

US 08/928 684 typically includes an airflow outlet that, after filtration, flows from an air purifying device in its path to another device, such as an automobile engine. This outlet of the flowing air may be provided with a snap clip for snapping onto the rest of the body member, or it may be constructed integrally with the body member.

In a preferred arrangement as described and illustrated in U.S. Patent Application Serial No. 08 / 928,684, the rotatable actuating closure comprises a clip and collar arrangement or a shoe and bracket arrangement, including a collar or shoe arrangement, or a clip and bracket arrangement. The sleeve or shoe arrangement is mounted not on the first of the components, such as

the body member and the cover, while the clip or holder arrangement is mounted on the other of these parts, such as the body member and the cover. The sleeve or foot arrangement and the clip or holder arrangement are provided such that during closure, parts of the sleeve or foot arrangement are secured in place by the clip or holder arrangement parts.

A preferred arrangement according to patent application US 08/928 684 is such that upon rotation into the non-closed position the engagement between these parts of the sleeve or foot arrangement and the clip or holder arrangement occurs.

In preferred preferred devices according to U.S. Patent Application Serial No. 08 / 928,684, the sleeve or foot arrangement comprises a plurality of L-shaped shoe members (i.e., sleeves) disposed on the housing, wherein the clip or holder arrangement comprises a plurality of holders (or clips). arranged on the body member. In accordance with the subject-matter of the patent application US 08/928 684, the L-shaped shoe members (sleeves) are preferably evenly radially spaced, the holders (clips) also being spaced ^- radially ^- spaced:

Certain preferred arrangements of L-shaped holders and lugs for convenient closure and convenient opening, as well as for their preferred manufacture, are disclosed in US Patent Application Serial No. 08 / 928,684. The brackets are selected so that each bracket is provided with a pair of spatial protrusions defining a recess, a concave or slotted portion into which the closure protrusion, the skirt or the tooth engages by friction engagement.

In some embodiments of US 08/928 684, the holders rest and are secured over the center in recesses in the feet. As such, the closure device in the preferred embodiments operates as a " centered closure. &Quot; The term "centered closure" means a closure where the maximum torsional or abutment force occurs during the relative passage through the center between the holders (clips) and the feet (s), but releases on opposite sides of the center, ie in a closed or in the non-closed position.

In accordance with the description of patent application US 08/928 684, a method of fastening and securing the cover to an air purifying device is also described. Preferably, the method comprises directing the cover in a cover manner relative to the end of the body member and rotating the cover to the closed position. This closed position is preferably achieved by utilizing the advantageous rotation of the directional closure device as described above and the threadless arrangement.

In accordance with patent application US 08/928 684, in certain embodiments, a snap-in latch or structure is provided. This plug-in latch design comprises a plunger which is slidably disposed so that it can be slidably displaced to a position that prevents the closure device from opening.

Summary of existing description

An air purification device has been developed. This air purification device comprises a body member and a removable cover. It has been provided by a rotatable actuating closure device having a first non-closed position and a second closed position. The cover is detachable from the body member when the closure device is in its first non-closed position. The cover is securely · 0 · 0000 0 0 0 0 0 0 0 9 9 9 9 9 9

9 9 9 9 9

99 9 9 9 00 9 0 • · · 9

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9 9 0 · »0 0 attached to the body member when the closure device is in its closed position.

The rotatable actuating closure device is designed and arranged such that it can optionally move between the non-closed position and the closed position by rotating the housing relative to the body member. The rotation-actuatable closing device comprises a holder arrangement and feet. This holder arrangement preferably comprises a plurality of holders. Each of the feet is provided with a section directed into engagement with one selected holder during closure.

In certain arrangements, each of the brackets is preferably p-shaped, each bracket having a tail which is generally perpendicular to the direction of rotation of the housing relative to the body member during closure. In preferred arrangements, each shoe is provided with a banana-shaped section directed into engagement with a selected p-shaped holder during closure. Each tail bracket shaped p extends sufficiently far for the purpose of blocking the rotation of the cover relative to the body member through the intermediacy of engagement-with-the-selected time ^- 'dropper for a chosen amount of movement during closure.

In other aspects, an air purifying device has been developed having a body member, a removable cover and a rotatable closing device. The rotatable closing device comprises a holder arrangement and a plurality of feet. Said holder arrangement comprises a plurality of holders, each holder preferably having an outer circumferential wall defining a central cavity. Preferably, each of the feet comprises a section directed into engagement with the selected one holder during closure.

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In certain preferred embodiments, a movable snap-in latch is provided, which may optionally be positioned between the engagement position and the released position. When in the engagement position, the insertion pawl is preferably positioned such that it secures the selected bracket between the portion of the insertion pawl and the selected foot, thereby preventing the housing from rotating relative to the body member. In its released position, the insertion latch then preferably releases the selected bracket, thereby allowing the housing to rotate relative to the body member.

In other aspects, a method of securely securing a cover member to a body member has been developed. The method comprises the steps of overlapping the open end of the body member by means of a cover and rotating the cover relative to the body member. Preferably, the step of pushing the insertion pawl into the engagement position is performed to block the undesirable reverse rotational movement of the housing relative to the body member.

BRIEF DESCRIPTION OF THE DRAWINGS

The invention will now be explained in more detail by way of examples of its co-crystal-embodiment-7-whose description will be given p. taking into account the accompanying drawings, where:

Fig. IA is a front elevational view of a first embodiment of a housing of an air purification device as described in U.S. Patent Application Serial No. 08 / 928,684;

Fig. 1B shows a partial enlarged top plan view of a portion of the housing of Fig. IA ready to receive a mounting bracket;

Fig. 2 is an exploded cross-sectional view of the housing of the air purification device shown in Fig. IA, wherein 'ΦΦ ί ««φφφφφφφφφφφφφφφφφφφφφφφφφφφ • φ · φ · φ · · · • · 9 ·

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the section is generally taken along line 2-2 of FIG. 1A, with no internal filter elements mounted;

Fig. 3 is a right side side view of the housing of the air purification device of Fig. 1A showing certain ornamental elements on the housing cover;

Fig. 4 is an exploded axonometric view of the air purification device of Fig. 1A, showing an internal filter device;

Fig. 5 is a partial enlarged side elevation and somewhat schematic view of the closure device for the housing of the air purification device of Figs. 1 to 4, in the non-closed position prior to engagement;

Fig. 6 is a view similar to that of Fig. 5 but showing the closure during engagement;

Fig. 7 shows a view of the closing device, which is analog and • river-pohledům- PODR fig? - ^'5: -A according to fig ·: -6 ~ e -kt rice shows the closing device in a closed position after full meshing;

Fig. 8 is a front elevational view of a second embodiment of a housing for an air purifying device disclosed in U.S. Patent Application Serial No. 08 / 928,684, including a snap-in latch assembly;

Fig. 9 is a right side elevational view of the housing of the air purifying device of Fig. 8, showing some ornaments on the housing cover;

φ '· · · · Φ Φ φ φ φ φ φ φ φ φ φ φ φ φ φ φ φ φ φ φ FIG. 10 is a fragmentary enlarged, somewhat, schematic, partial cross-sectional view of the plug-in latch assembly for the air purification apparatus of FIG. 8, showing the plug-in latch assembly in the open position and the shut-off device also in the open position;

Fig. 11 is a view analogous to that of Fig. 10 showing the insertion pawl in the closed or engaged position and the closure device in the closed position;

Fig. 12 is a front elevational view of a third embodiment of a housing for an air purifying device of U.S. Patent Application Serial No. 08 / 928,684, which is analogous to that of Fig. 1A and Fig. 8;

Fig. 13 is a partial enlarged side elevational view of a sleeve or foot arrangement useful in various embodiments and showing certain dimensional lines;

FIG. 14 is a partial enlarged, schematic side elevational view of a clip or bracket that is about 11 degrees in diameter, and wherein, in U.S. Pat. No. 08/928 684, FIG. certain dimension lines are shown;

Fig. 15 is a front elevational view, partially in section, of a mounting bracket usable for the air purifier housing of US 08/928 684; Fig. 16 is a partial side elevational and somewhat schematic view of the mounting bracket of Fig. 15; engaging the housing of the air purification device of U.S. Patent Application Ser. No. 08 / 928,684;

• 0 Ϊ «Ϊ · 0 0 0 0 0 0 4 i ·· '4 0 0 0 0 0 0 0 0 0

0 040 000 0

004 0 0 · 0 00 0

0000 00 00 00 44 04 Fig. 17 is a side elevational view of a body member in an alternative embodiment;

FIG. 17A is a cross-sectional view taken along the line 17A-17A of FIG. 17;

Figure 18 is a partial enlarged plan view of the holder portion of the arrangement shown in Figure 17;

Fig. 19 is an enlarged side elevational view of a cover member having the size and arrangement for engaging the body member of Fig. 17;

Fig. 19A is a top plan view of the cover member shown in Fig. 19;

Fig. 20 is a cross-sectional view of the arrangement shown in Fig. 19, taken generally along the line 20-20 of Fig. 19A;

FIG. 21 is a partial enlarged plan view of the foot ^- with a part-orderly I-7a illustrated in FIG --NA- -, - Θ- 2; FIG. 22 is a partial enlarged schematic side elevational view of the closure device for the housing of the air purification device of FIGS. 17 to 21, shown in the non-closed position and prior to engagement;

Fig. 23 is a view of the closure assembly of Fig. 22 shown during partial engagement between the closed and non-closed positions;

Fig. 24 is a view of the closure device of Fig. 22 and Fig. 23 shown fully engaged;

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FIG. 25 is a view analogous to that of FIG. 24 and also showing the insertion latch in the closed position; FIG.

Fig. 26 is a view analogous to Fig. 25, but showing the plug-in latch in the non-closed, retracted position;

Fig. 27 is a view analogous to that of Fig. 18, with lines and angles shown for preferred recommended dimensions;

Fig. 28 is a view analogous to that of Fig. 20, with lines and angles shown for preferred recommended dimensions;

Fig. 29 is a view analogous to that of Fig. 10 showing certain modifications as well as the insertion latch in the non-closed position;

Fig. 30 shows the arrangement according to Fig. 29 in a closed r-\ z- \ Ί «-7 · ........._ ...

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Fig. 31 is a partial schematic view analogous to Fig. 5 but showing an alternative closure device;

Fig. 32 is a partial schematic view of the embodiment of Fig. 31, which is shown partially displaced to the closed position; and Fig. 33 is a partial schematic view of the embodiment of Figs. 31 and 32, which is shown rotated to the closed position.

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DETAILED DESCRIPTION OF THE INVENTION

The principles of the patent application US 08/928 684 can be applied to air purifiers of various sizes and arrangements. In the accompanying drawings, these principles are embodied by means of a plastic device having distinctive features. These distinctive features are the subject of a US patent for an external application, the application of which was filed on the same day as that of application US 08/928 684, i.e. on September 12, 1997. In the following, particular reference will be made to these distinctive features.

As can be seen from FIG. 1A, the air purification device 1 of US 08/928 684 is designated with reference numeral 1. This air purification device is shown in front view in FIG. 1A. The air purification device 1 comprises an outer casing 2 and an exterior 2 ^{and an} interior 6 (see FIG. 2). The air to be filtered enters the outer casing 2 through an inlet 5. In the space of the outer shell 2, this air is filtered. The air then passes through outwards at outlet 6. This air is then fed to the next engine device.

for example, to

As further shown in FIG. 1A, the outer casing 2 for the respective air purification device 1 comprises primarily molded plastic components and components. In particular, the outer shell 2 comprises a molded plastic body member 2 and a molded plastic cover 9. The outlet 6 is further provided with a molded plastic outlet tube 10. As will become apparent from the following description, the molded plastic outlet tube 10 is for the respective < Desc / Clms Page number 3 &gt; The embodiment shown is firmly snapped into a portion of the body member 3.

Certain principles of the solution, which are described in patent application US 08/928 684, and which will also be explained in more detail below, relate to the manner in which the cover 9 is secured to the body member 83. Before describing the details of this embodiment, the following general overview will be given.

As further shown in Figure 1A, the exterior 2 of the outer shell 2 comprises:

(a) certain distinctive features in question, as well as (b) other features designed primarily to facilitate function or operation.

For example, the outer casing 2 is provided with outer ribs 13. These ribs 13 are aligned in the axial direction and extend over both the body member 8 and the cover 9. This outer

The ribs 13 serve primarily for a different appearance Here, it will be appreciated that the body member 8 and the cover 9 are molded so that the respective ribs 13 are aligned behind the parts 13a and 13b for external purpose of forming ribs 13 of continuous and distinctive appearance, while the cover 9 is suitably positioned in a closed and overlapping relationship to the body member 8 as shown in FIG. 1A.

As further shown in FIG. 1A, the outer surface 13 of the outer casing 2 in the portion that includes the body member 8 is provided with spaced apart radial ribs or rings 14. Although the number and distance of these ribs or rings 14 is not critical, this serves ribs or · * ····

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The ring 14 partially for reinforcing and strengthening the plastic body member 8, particularly in the areas where the mounting bracket, which will be explained below, is located, and which serves to securely attach the air purification device 7 to the respective device. , such as a truck.

As shown in Figure 1B, in the portion 16 of the body member 8, the housing 2 is provided with a plurality of pockets or notches 17. These pockets or notches 17 are generally rectangular (plan view) and are delimited by ribs or rings 14 and lateral extensions. 18. The pockets or notches 17 are positioned so that portions of the mounting bracket can be accommodated accordingly during assembly of the air purification device 1, as will be described in more detail below.

Due to the attachment of the mounting bracket parts and the pockets or notches 17 to each other, the air purification device 1 can be easily mounted and secured in a selected rotational position relative to the device on which it is mounted. That is, the inter-engagement between the pockets or notches 17 and the mounting bracket prevents the air purification device 1 from rotating relative to the mounting plate or / or dryer. _ _; __

Attention will now be drawn to the figures of Fig. 15 and Fig. 16.

15 and 16 show a mounting bracket 20 (provided with an open interior 21) usable for the air purification device 1 shown in FIG. 1A.

The mounting bracket 20 has an arcuate configuration with struts 22 and 23 that define an open interior 21. In use, the struts 22 and 23 are opened, with

4 «4444 * 4 • 4 44 •» · ·· 4 4 4 4 4 <4 4 4 4 4 4 4 4 1 7 4 4444 44444

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4444 44 40 44 44 * 4 the air purification device is positioned so that it lies in the open interior 21. The mounting bracket 20 has an inner surface 25 that is provided with teeth 26. Thus, the desired rotational directional orientation between the air purification device 11 can be selected. and the mounting bracket 20. The teeth 26 will then be positioned to engage selected pockets or notches 17 in the air purification device 1 to achieve the desired pivot arrangement. The mounting bracket 20 is very easy to attach and secure to the vehicle, for example by means of screws or other suitable fastening means.

A mounting bracket, which is analogous to the mounting bracket described herein, is described in more detail in U.S. Pat. No. 5,545,241, the entire contents of which are hereby incorporated by reference.

Attention will now be directed to the figure of Fig. 3, which shows a side elevational view from the right side of the air purification device. In this figure, the inner end surface 34 of the plastic cover 9 is clearly visible.

In the retraction mark 35, a distinctive vortex pattern that is molded into the plastic housing 9 is indicated. This distinctive swirl pattern 35 has no beneficial function in connection with the filter function of the air purification device 1, but rather serves the purpose of distinguishing appearance. It should be noted here that in the preferred embodiment shown, the inner end surface 34 extends in the same way as the plastic cover 9 to the end of the housing, without having any through holes.

3 also shows that a certain feature 36 is embossed on the inner end surface 34 of the housing 9. This embossed feature 36 provides guidance in connection with the operation function of the air purification device. Specifically, the embossed feature 36a is an instruction to move (rotate) the housing 9 to unlock or disconnect the housing 9 from the body member 9, and the embossed feature 36b is an instruction to move (rotate) the housing 9 to the body member 8 to achieve a locking engagement between cover 9 and body member 8.

While still talking about the inner end face 34, attention will now be focused on the molded shape 40. This molded shape 40 comprises a peripheral edge 41 which defines a central flat area 42. Preferably, the peripheral edge 41 defines a geometric pattern or circumference that is not "rotationally symmetrical." The respective peripheral edge 41 shown in FIG. 3 is circular in the portion 44 but flat in the region 45.

It will be understood that conventional markings or labels 44a or background printing will be used to provide information on the central flat area 42. The absence of circular or rotational symmetry with respect to the arrangement of the peripheral circumference may help to rotate the information point, for example the position of the label. Markings or labels that fill the central flat area 42, circumscribed by the peripheral edge 41, will need to be non-circular (and radially asymmetric) to fill this area. As a result, this information will be able to be rotated relative to the flat edge of the label to affix the label to the cover 9.

It is to be expected that, as a rule, the information will be printed on the label in a position relative to the flat edge so that, when mounted on the vehicle, the information is substantially directly in front of the reader. By way of example, the designation 44a with the word &quot; top &quot; and the corresponding directional arrows is shown. Thus, the installer will know in which directional position the air purification device 1 is to be positioned on the vehicle, according to the directional arrows generally pointing upwards.

In the illustrated arrangement, the annular portion 44 has a radius of 35 mm, the central flat region 42 defining a chord 45 occupying an arc of an angle of 35 ° to 55 °, preferably an arc of an angle of 45 °.

The reason why the correct rotation position of the air purification device 1 is very important will be readily understood with reference to the figure of Fig. 1.

In Fig. 1, the cover 9 is shown to be provided with a respective outlet conduit 46 for discharging granular particles. The outlet conduit 46 is provided with an outlet cover 47. Generally, it is preferred that the outlet conduit 46 is directed downward so that if the granular particles accumulate in the area of the cover 9, they can be easily ejected outwards and outwards. down the outlet line 46 for discharging granular particles.

The outlet ducts, which are generally of the type shown in FIG. 1, are known, for example, from U.S. Pat. No. 5,545,241, which is incorporated herein by reference.

However, it should be pointed out that the respective design of the particulate outlet conduit 46 of Figure 1 differs from that of the outlet conduit of U.S. Pat. No. 5,545,241, in particular in that the outlet conduit 46 lies perpendicular (at 90 °). to the longitudinal axis 48. The outlet pipe of U.S. Pat. No. 5,545,241 extends outwardly from the housing at an acute angle relative to the longitudinal axis relative to the longitudinal axis 48. 0 0 0 0 0 0 0 0 0 0 0 0 0

longitudinal axis (i.e., at an angle less than 90 °). The approximately perpendicular mounting of the outlet conduit 46 at an angle of approximately 90 ° according to FIG. It should be emphasized here that such outlet pipes are not necessarily necessary and may not be utilized in some applications of the principles described herein.

As previously mentioned, for the illustrated configuration, the outlet tube 10 is a separate piece separated from the remainder of the outer casing 2 and is firmly snapped onto the body member 8. The outlet tube 10 shown has a "straight" axial extension. That is, as it passes through the outlet tube 10, the air leaving the outer casing 2 moves in the direction of the longitudinal axis 48. A firm snap is achieved by the annular flange or rib 11 as shown in FIG. 2.

In Fig. 2, an alternate outlet tube arrangement is indicated by 50. This outlet tube 50 is a 90 ° outlet tube. It will be appreciated that if the outlet tube 50 is positioned in place of the outlet tube 10, then it will move out of the outer casing first in the direction of the longitudinal axis 48, whereupon it will bend by 90 ° due to bend 51. It will be appreciated that the arrangement of FIG. 12 includes other possible modifications that are feasible with the apparatus of FIG. 1, as will be described in more detail below.

Although a variety of alternative configurations may be used, it is contemplated that, for typical applications and for advantageous attachment of the downwardly facing tube and other accessories, either a straight tube as shown in the outlet tube 10 or a bent outlet tube 50 with a 90 bend °. Using an appropriately shaped ·· ··· ·

The air purification device 7 may be configured in one piece as a snap-fit arrangement. That is, typically the features of the body member 8 and the housing 9 will be the same regardless of the type of outlet tube used, i.e., whether the outlet tube 10 or the outlet tube 50 has been used.

Attention will now be directed to the illustration of FIG. 4. This illustration of FIG. 4 shows an exploded axonometric view of the air purification device 11. Attention will be paid to the internally mounted filter element 55 and to the security element 56. Although a variety of different filter element configurations and different security element designs can be used, the embodiments shown in Figure 4 are typical. It should be pointed out here that the locking device according to this description can also be used for air cleaners which do not have safety elements.

The filter element 55 may generally be of the type supplied by Donaldson Co., Inc. of Bloomington Minnesota, which is the proprietor of this invention. Like this

The filter elements 55 are generally contained in an obias-58-x-ad-i-sealant of Donaldson. That is, the material in the region 58 may be compressed during assembly against a portion of the outlet tube.

Certain principles relating to the aforementioned seal are described in EP 0 329 659, which is hereby incorporated by reference. For Dolandson Co. it may also be advantageous to place a corresponding feature on the filter element analogous to the pattern 35 of FIG. 3, in order to facilitate the distinction of the relationship.

• · · ·

Security element 56 is a known conventional security element of the type commonly available from Donaldson Co., Inc. This security element 56 is provided with an outer radial seal in the region 60. The sealing of the security element 56 in its operating position is achieved by compressing the material in the region 60 in the interior of the portion 61 (see FIG. 2) of the outlet tube 10 (and the outlet tube 50 in FIG. 12).

It will be appreciated here that the security element 56 has such dimensions and size and is arranged that it can be housed in the open interior 62 of the primary filter element 55 during assembly. The filter element 55 can be removed without having to remove the security element 56 .

Attention will now be again directed to the illustration of FIG. 2. In this illustration of FIG. 2 no installed element is shown.

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Referring to FIG. 2, the outer side wall of the housing 2 may be noted to enclose the filament member 55 during operation with a partially tight seal (i.e., section 65a outer). side wall 65) and partly by cover 9 (i.e., section 65b of outer side wall 65).

the longitudinal span of the outer side wall by the body member 8 as well as the cover 9.

That is, the portions 65 are formed as

As further shown in Figure 2, the body member 3 is provided with an inner circular or cylindrical deflection flange 67. As the air enters the inlet (see Fig. 1, it is partially directed against this deflection flange 67. Preferably, the inlet 5 is inlet 5. oriented tangentially, so that as air is directed against the deflection flange 67, it is directed to a circular spiral or cyclone

0 0 0

0 0 0 0

a swirl pattern along the interior 68 of the outer side wall 65. To facilitate the deployment of this "cyclone pattern", the body member 8 is provided with an inner platform 69 (see Figure 1).

Structural features such as deflection flange 67 and inner platform 69 have also been applied to pre-existing Dolandson air purification systems, as described, for example, in U.S. Patent 5,545,241, which is hereby incorporated by reference.

As further illustrated in FIG. 2, the outer side wall section 65a of the body member 8 is provided with an end portion 71. This end portion 71 has an annular arrangement that defines an area 72.

Similarly, the outer side wall section 65b of the housing 9 is provided with an end portion 75 with an annular surface 76. During assembly, the annular surface 76 engages or lies against the annular surface 72. Here, the annular surface 76, which has a generally cylindrical configuration, will sometimes be referred to as the "engagement surface of the body member" -the end-portion-of-the-cover-9) of the housing. the annular surface 72, which generally also has a cylindrical configuration, will sometimes be referred to as the "engagement surface of the end portion 71 (or body member 8)".

In the illustrated arrangement, during assembly, the annular surface 76 encircles the annular surface 72, in opposing, side-by-side or overlapping orientations sufficiently spaced apart to accommodate portions of the fastener that will be described in another.

Φ φ φ · · · • • • • • • • • • • • • • • • • • • • • • •

The outer side wall section 65a is further provided with a radial skirt or projection 78. This radial skirt or radial projection 78 is directed radially outwardly from the annular surface 72, preferably perpendicular to the longitudinal axis 48. The radial skirt or projection 78 forms a stop for moving the end portion 75 over the body member 8 during closure. The flange or collar 79 provides an analogous stop when they rest on radially spaced clips or holders 98, as described below.

Coupling mechanism

Attention will now be directed to the illustration of Fig. 2 and Figs. 5 to 7.

In accordance with patent application US 08/928 684, the air purification device 11 is provided with a coupling closure 90. This coupling closure 90 provides a locking locking engagement between the housing 9 and the body member 3. That is, the fastener 90 has a closed or closed orientation and a non-closed orientation. • If in Newz enclose the _{open-or-so-ientaeÍT-e} j - _{m O} 2 _NO -těiesný "čien8_ ^_ and ^- cover" _9 ^_ apart easily separated from each other by relative axial movement of one component relative to another, and generally axial movement cover 9 outwardly from the body member (8).

On the other hand, when the closure device 90 is in its closed orientation, detachment of the cover 9 from the body member 8 is prevented. More specifically, the axial movement of the housing from the body member 8 is prevented, in particular the rotational movement between the housing 9 and the body member 8 is sufficiently blocked so that they cannot be undesirably detached (after unlocking).

The coupling device 90 is configured to operate by moving between the closed and non-closed orientation due to the relative pivotal movement of the housing 9 relative to the body member jk. As a result, the respective coupling device 90 of the preferred embodiment is characterized herein as "rotatable or" rotatable tract. The terms "rotatable activatable" and "rotatable actuatable" mean that the change of function between closed and non-closed orientation is due to the rotational movement of one or the other member, either of the housing 9 or of the body member <3 relative to each other.

When the air purifying device 11 is mounted on a vehicle, the selected movement is typically the pivotal movement of the housing 9 relative to the stationary body member. That is, the body member 8 will be locked in position by a mounting bracket, such as mounting bracket 20 of FIG. 16, being a cover 9 that will rotate and move to allow access to the interior 4 of the outer shell 2 (see FIG. 2).

The subject-to-zor-n-en-im-s-o-ov-hB- / occluding-mouthpiece-90 is a clip-on-sleeve coupling device 91 or a shoe-holder. The shoe-and-bracket closure device 91 includes a collar or lug portion 22 (see FIG. 2) and a clip or bracket portion 94. In the preferred embodiment shown, the collar or lug portion 93 comprises a plurality of radially spaced sleeves or lugs 97 positioned on the housing 9, while the clip or bracket portion 94 comprises a plurality of radially spaced clips or holders 98 disposed on the body member 2. The sleeves or lugs 97 and the clips or brackets 98 are preferably arranged and oriented relative to each other for optional selection. · 9 9 9 ·

9 · »

9 9 9 9 9-9 · engagement and uncoupling as a result of the operation of the coupling device 90.

In the illustrated embodiment, the clip or holder 98 is positioned to engage each respective sleeve or foot 97 during coupling and vice versa. Preferably, each of the sleeves or feet 97 comprises a portion 100 that locks in use beyond or around the clip portion 101 of the bracket or holder 98. Also preferably, each clip or bracket 98 engages a respective sleeve or foot 97. In the preferred systems, there are an equal number of holders (clips) and feet (sockets). A preferred arrangement of the sleeves or feet 97 and the clips or holders 98 is provided for their preferred function.

Attention will now be directed to the illustration of Figures 5 to 7, where one of the clips or grooves 98 is shown.

In Figures 5 to 7, portions of the clip 98 are shown in partially dashed lines since the schematically shown portions are shown as viewed from an "internal" orientation, i.e. over a portion or area 72 that has been removed for clarity. Preferably, each bracket 98 is provided with a projection extending radially outwardly from the surface 72 (see FIG. 2) and spaced from the radial skirt or projection 78 (see FIG. 2). Each holder 98 (see FIGS. 5 to 7) is provided with a pair of spaced apart projections 109 and 110, between which a central concave region, a recess or a notch 112 is disposed.

The flange or collar 79 (see Figures 2 and 5 to 7) is provided with a plurality of spaced apart protrusions, claws or feet 114, each protuberance, claw or foot being spaced apart from each other.

arranged to be aligned with the corresponding recess or notch 112 in the selected holder 98 during the locking engagement. The protrusions, claws, or feet 114 are preferably sized and shaped to protrude at least partially into the recess 112 upon closure for frictional engagement or disengagement rotation. Preferred claws or feet shown in FIG. 2 have curved convexities.

As shown in Figures 5 to 7, the projections 109 are provided with a rounded surface 116 to facilitate engagement with the teeth or lugs 114 during closure, and also have a rounded surface 117 to facilitate disengagement during opening. The curved surface 118 on the protrusion 110 also facilitates disengagement. Preferred mutual arrangements of the teeth or lugs 114 and projections 109 and 110 for the purpose of securing engagement are shown in the figures of Figures 5 to 7. Preferred relative dimensions of these respective components will be described in more detail below.

As further illustrated in the figures of Figures 5 to 7, the clip or bracket 98 is further provided with a rear surface 120. This rear surface 120 is positioned such that it engages a locking surface, in particular surface 133, during assembly. associated sleeves or feet.

5 to 7, the clip or bracket 98 is provided with a cam surface 126 adjacent the rear surface 120 and facing forward toward the tip 125. This cam surface 126 is inclined and has such dimensions to easily slide along the inclined or cam surface 127 of the sleeve or shoe 97 during locking engagement.

Attention will now be directed to the illustration of FIG. 5, which shows the projection of the sleeve or shoe 97.

This projection of the shoe 97 comprises two general sections, designated 128 and 129. The section 128 forms a rear stop 133 for rotational locking movement. The section 129 projects from the section 128 and lies in the circumferential direction. The section 129 is that portion which will be secured during or around the engagement clip or holder 98 during locking. Thus, the section 129 and the foot 114 will be disposed on opposite sides of the holder 98. Preferably, the foot 97 is provided with a shaped protrusion protruding In this context, the term &quot; lies or protrudes in the circumferential direction and its variants mean that the longitudinal projection of the section 129 of the section 128 is generally circumferential. That is, the section 129 does not extend substantially in the longitudinal extent toward or away from the centerline 48 (see FIG. 2).

central axis 48 with respect to section 128

As shown in FIG. 5, the section 129 is provided with a tip 131, an inclined or cam surface 127 and a recessed surface 134. This recessed surface 134 lies between the section 128 and the bulge 135. The bulge 135 includes an end of the cam surface 127.

In use, the rounded tip 131 is pressed against the clip cam surface 126 or groove 128 to initiate engagement. The cam surface 126 of the holder 98 slips over the cam surface 127 of the sleeve or foot 97 until engagement occurs. Optionally, the bulge 135 of the sleeve or shoe 97 slips over the rear surface 136 of the clip or bracket 98, wherein the recessed recess means that the point is the clip or surface 134, where the bracket 98 is seated against the generally secured between

135 and section 128 (surface area 133). This is achieved by blocking through the center.

The tooth or foot 114 is positioned such that when the abovementioned engagement level occurs, the tooth or foot is positioned in the recess or notch 112. When these components are suitably arranged relative to each other, the above-described movement results in a snap-over connection over the center; the disengagement can be easily accomplished by reversing the movement with sufficient force to overcome the resistance that results from the rounded recess 135 and the rounded tooth 114.

The movement between locking and unlocking will be easier to understand with reference to the positions shown in the figures of Figures 5, 6 and 7.

The procedure from FIG.

towards FIG.

„Closing poi Fig. 5 will be < FIG. 6 a giant. movement, who Fig. 7 will be člen 8.

generally represents from FIG. 7 towards a comparison of FIG. 5 with respect to FIG

It is envisaged that the individual components will be of such dimensions and arrangement that in the locked closed position of FIG. As a result, there will be no undesirable level of rattling or clattering of the housing 9 on the body member 8 during use, as is the case with known systems. For some · 9 ·

999 arrangement, this occurs because the filter element 55 (see FIG. 4) with compressible end is usually provided with soft cover members and is dimensionally oriented so that it can be slightly compressed in the axial direction between the body member 8 and the cover 9. This slight compression of the soft and compressible end caps will cause a cushioning effect for rattling or clattering between the individual components shown in Figures 5 to 7.

Conventional known filter elements of the type described above, supplied by the Donaldson Company, are provided with compressible end caps which are sufficient for this effect when their appropriate dimensions are selected.

Preferred recommended dimensions of the various components described in U.S. patent application Ser. No. 08 / 928,684 will be discussed in more detail below.

It is to be understood that, in alternative arrangements, the clips or brackets may be located on the housing, while the sleeves or feet may be located on the body member, so that their placement on the x-ray member may be combined differently. However, the particular specific arrangement described herein and illustrated in the individual drawings is suitable and advantageous, both in terms of manufacture and assembly.

In the illustrated arrangement, the member 8 and the respective housing 9 are distributed uniformly radially, and their angular distance is about 22.5 °, so that there are always sixteen such members. It is to be understood that various other variants may be used. Preferably, however, at least ten clips or holders must be used and at least ten sleeves are holders and feet on the respective body.

9900 99 9900 · · 99

9 9 9 9 9

9 9 9 9 9

9 9 9 9 9 9 9 9 9

9999 99 9 9 9 9 9 9 9.9 or feet in the air cleaner version, which described the dimensions and size.

ma here

Most preferably, each sleeve (foot) is attached by a clip (holder) and each clip (holder) is attached by a clip (foot). It is also preferred that the same radial distances be selected so that a certain pivoting position between the housing 9 and the body member 8, which is dictated to some extent by the radial positions of the feet 97 and brackets 98, is not determined. securely closing without special radial positioning of the cover 9 relative to the body member 8.

As will be apparent from the above description and from the drawings of FIGS. 2 and 5 to 7, certain advantages of the preferred embodiment described herein will be apparent. For example, "the coupling device may be referred to as" internal. That is, the components that lock, i.e., the clips or holders 98, the feet 97, and the notches or feet 14, are oriented such that they are positioned under the cover 9 when assembled, there being no opening that is substantially exposed to the environment.

with each other or

That is, when placing the cover 9 on the body member 3, the coupling parts are positioned below the outer side wall section 65b of the housing 65, i.e., below the outer side wall 65 of the outer shell 2. That is, they are not exposed to the external environment. Thus, the interaction of the closing disconnecting operation due to the environment, for example due to the action of snow, ice, road tar, mud and the like, is unlikely. In addition, it is also less likely that environmental damage will occur.

Also, in the preferred embodiment shown, there will be no significant torsional or abutment forces between the housing and the body member during the closing engagement. That is, there is no pressure tending to squeeze or twist the cover away from the body member after reaching the closed position of Fig. 7. The clips or holders 98 rest (and are retained) over the center in recesses in the sleeves or feet 97. That is to say, that it is unlikely that the parts of the coupling closure, such as the beads, will start to twist, collapse, or shear due to forces during closure. The torsional or supporting forces occur briefly during the transition over the center, but are released in the closed position.

Some preferred recommended dimensions for the respective clips or brackets and for the respective sleeves or feet will be listed below. It is to be understood that various variants of the dimensions may be used. In general, the recommended preferred dimensions are for a preferred embodiment of the invention having an internal dimension of about 8 inches in diameter. Deviations from this diameter, if substantial, can confirm dimensional modifications of certain dimensions for the corresponding clips or holders and sleeves or feet.

In some applications, however, it will be possible to maintain the same dimensions and proportions when changing the overall outer shell diameters. Similarly, if the sheath diameter is substantially reduced, it may be desirable to use less than sixteen for the number of clips or holders and sleeves or feet. This will also be a matter of design choice and will also concern the facilitation of pressing the sample concerned.

Φ φ

φ φ

In a preferred embodiment of the present invention, each clip or holder 98 and each sleeve or shoe 97 are designed for use in convenient and efficient manufacturing processes. Preferably, the clips or holders 98 and the sleeves or feet 97 are made by injection molding together with the respective housing components, that is, together with the body member 13 and the housing 9. In injection molding, it is advantageous to use the removal angle on the components to assist removing the component from the mold. By "removal angle" it is to be understood that one of the faces of the part is recessed in production or, on the contrary, protrudes outward at a certain angle from the opposite face of the part being manufactured. In a preferred embodiment of the present invention, the removal angle is about 0.5 to 3.0 °, preferably about 1 °.

Plug-in plug (optional)

Attention will now be directed to the illustration of Figures 8 to 11. The illustration of Figure 8 shows a cover provided with a preferred engagement thumb structure. In particular, the arrangement of Fig. 8 comprises a male plug-in device 150-. The male plug 150 comprises a sliding latch 151 which is disposed in a slotted or guide structure 152. In this male plug 150, the sliding latch 151 is easily displaceable between two positions, between the first released position B and the second engaging closed position. position A.

When the sliding latch 151 is in the first released position B, the cover 209 may pivot relative to the body member 208 to close or disconnect the closure device. When the sliding latch 151 is in the second engagement closed position A, the rotational movement of the housing 209 relative to the body is in relation to the body. The member 208 is prevented from opening or closing the closure device 290 (see FIGS. 10 and 11). Generally, FIG. 8 shows the sliding latch 151 in the closed position indicated by A, and in the released position indicated by B.

The male connector 150 operates by sliding a portion of the sliding latch 151 to a position on the opposite side of the associated clip or bracket 98 from the associated sleeve or shoe section 128 (see FIGS. 10 and 11). Thus, during closure, the holder 98 is rotatably mounted between the sliding latch 151 and the associated L-shaped foot 97. If the sliding latch 151 is moved to the disengaged position (see FIG. 10), the sliding latch 151 moves out of the position, blocking the rotational movement. As a result, rotational movement is allowed to unlock.

Attention will now be directed to the illustration of Figures 10 and 11. As shown in Figure 10, the sliding latch 151 includes: a handle or control portion 155, a shank portion 156 defined between the side edges 157 and 158; and a bottom 160. From this bottom 160 a curved ratchet extension 162 protrudes, a tab 164 with an outer flange or projection 16 protrudes from the side edge 158. This tab 164 and a curved ratchet extension 162 define a recess or recess 167 along the bottom portion 168 of the side edge 158.

10 and 11 show a sliding latch 151 mounted on the cover or lid 209 in a slotted or guide structure 152. The wall of the cover or lid 209 is provided with a U-shaped aperture 159. »···

0 ···

0 »99

9 · · · ·

9 9 9 ·

9999 99

9.9 of the letter U forms a window or open space which allows the sliding latch 151 to be visible. That is, the open space delimited by the U-shaped aperture 159 exposes a portion of the stem portion 156 to the atmosphere. The edges of the U-shaped aperture 159 overlap the guide structure 152.

In operation, the sliding latch is moved to a slotted or guide structure 152 that has opposing side walls 170 that extend along opposite side edges 157 and 158. The length of the shank portion 156 relative to the guide structure 152 is typically selected such that the curved latch the extension 162 projects beyond the guide structure 152, regardless of whether the sliding latch 151 is in the engaged or disengaged position.

Typically, the sliding latch 151 is molded from a plastic material such as acetyl copolymer, which is marketed under the trade name Ultraform® N2320 by BASF at 3000 Continental Drive North, Mount Olive, NJ 07828. As a result, the tab 164 and curved latch prodlo

CO Vn / J

X \ T £ -, n vom i w i - Vi i J.

inflect. During assembly, the tab 164 and the curved ratchet extension 162 are then somewhat compressed as moved by the guide structure 152, again leaving the open end of the guide rim or projection 165 to prevent the sliding latch 151 from undesirably slipping through the guide structure 152 if no force is applied to the handle 155.

stretches after 152. Outer

It may be very advantageous for the sliding latch 151 to be of a different color from the rest of the housing in order to increase its visibility. For example, a yellow latch and a black jacket may be used.

Preferably, the curved ratchet extension 162 is positioned and sized to extend during engagement to a position adjacent the portion of the clip or holder 98 (see FIG. 11) when the sliding latch 151 is in the closed position. It is clear that, as a result, the bracket 98 is rotatably clamped between the curved ratchet extension 162 and the closed foot 97 during closing of the closure mechanism and during insertion of the male plug 150 so that relative rotation between the cover or lid 209 and the body member is prevented. 208.

The male plug 150 provides a secure attachment of the cover or lid 209 to the body member 208. However, this is not a mandatory requirement, so this may be considered optional. That is, the closure device described herein may provide a suitable release resistance to engage and maintain the selected engagement even in the absence of a safety mechanism such as a plug-in plug device.

Attention will now be directed to Figure 9. This Figure 9 is a right side elevational view of the arrangement shown in Figure 8. The handle 155 of the sliding latch 151 can also be seen here. it can be seen that the handle 155 can be arranged such that the structure is still visible from the viewpoint of the operation of the closure device. Note that the end view shows a feature 176 for operating the sliding latch 151, as well as a feature for the pivoting function of the closure device.

• ·

Attention will now be drawn to Fig. 12. Fig. 12 is a front elevational view which is generally analogous to that shown in Fig. 9, but illustrates a possible alternative arrangement including a curved output member. As described above, such a curved outlet member 50 may also be used in the embodiment of FIG. 1.

Particularly preferred embodiments of the subject-matter of the application US 08/928 684

This part of U.S. patent application Ser. No. 08 / 928,684 gives examples of the entire set of operating materials and technical conditions. However, these materials are given by way of example only. A wide variety of materials and sizes can be used.

In particular, the described arrangement will be intended for use in a system having the following characteristics:

a typical air velocity of about 100 to 220 CFM (about 2.8 to 6.2 m ³ / min); and

a typical pressure drop of about 4 to 8 inches of water column (about 100 to 205 mm water column).

The filter element 55 has an outer diameter of about 135 to 140 mm, preferably about 138 mm, and has an inside diameter of about 75 to 85 mm, preferably about 81 mm. The filter element 55 has an overall length of about 320 to 325 mm, preferably about 322 mm. It is the primary filter element Donaldson P827653.

• · • ·

The body member 8 has a length of about 260 to 270 mm, preferably about 267 mm. The body member 8 has an outer diameter in the portion 71 of about 205 to 215 mm, preferably about 211 mm, and has an inner diameter in the portion 71 of about 205 to 210 mm, preferably about 207 mm.

Each of the ribs 13 on the body member <3 has a width of about 4 to 8 mm, preferably about 6 mm. There are about sixteen ribs 13 on the body member 13. There are about twelve rings 14 on the body member 8, the rings 14 being spaced from one another at a distance of about 5 to 15 mm, preferably about 10 mm. Each of the rings 14 has an outer diameter of about 209 to 212 mm, having a width of about 1 to 3 mm, preferably about 2 mm.

The skirt 78 is at a distance of about 7 to 12 mm, preferably about 9 mm from the outer side wall section 65 of the body member 8, and about 30 to 40 mm, preferably about 34 mm from the bottom of the body member 8; next to section 71.

The deflection flange 67 has a length of about 125 to 135 mm, preferably about 132 mm, and has an outside diameter of about 165 to 175 mm, preferably about 170 mm. The distance between the inner wall of the body member 8 and the deflection flange 67 is about 15 to 20 mm, preferably about 17 mm.

The inlet 5 has an outer diameter of about 90 to 100 mm, preferably about 95 mm. The outlet 6 has an outer diameter of about 85 to 95 mm, preferably about 89 mm, an inner diameter of about 80 to 90 mm, preferably about 85 mm, and a length of about 110 to 120 mm, preferably about 115 mm.

The cover 9 has a length of about 130 to 140 mm, preferably about 134 mm. On the annular surface 76, the cover 9 has an inside diameter of about 210 to 215 mm, preferably about 213 mm, and has an outside diameter of about 225 to 230 mm, preferably about 227 mm. There are roughly sixteen ribs 13 on the cover 9.

The outlet conduit 46 has an outside diameter of about 55 to 60 mm, preferably about 57 mm, and has an inside diameter of about 47 to 52 mm, preferably about 50 mm.

The body member 8 and housing 9 are made of a plastic material, such as glass filled polypropylene, available from Hontlass ™ under the trademark Himont Advanced Materials at 2663 Eaton Rapids Road, Lansing, MI 44911.

A total number of sixteen sleeves or feet 97 is housed therein. Referring to Figures 5 to 7 and 13, section 128 has a length 300 of about 12 mm and a width of about 2 to 3 mm, preferably about 2.4 mm.

The section 129 has a length 301 to the end tip 131 of about 21 to 22 mm, preferably about 21.6 mm, having a length 302 to the edge of the bulge 135 of about 12 to 13 mm, preferably about 12.3 mm. . The section 129 has a width of about 3 mm.

φ φ

The cam surface 127 is inclined at an angle 303 with respect to a horizontal plane of 22 °. The cam surface 127 has a length between the bulge 135 and the tip 131 of about 9 mm.

The tip 131 is rounded with a radius of about 0.9 mm. The recessed surface 134 of the section 129 is inclined at an angle of about 1 ° from the planar surface of the section 129.

The bulge 135 is rounded to a radius of about 1 mm. The bulge 135 has a height 304 of about 3-4 mm from the edge of the section 129, preferably about 3.5 mm.

The center of the notch 114 lies at a distance of 305 from a section 128 whose size is about 7 to 8 mm, preferably about 7.4 mm. The barb 114 is rounded with a radius of about 11 to 12 mm, preferably about 11.5 mm. The tooth 114 protrudes from the section 128 by a distance of about 0.1 to 1 mm, preferably about 0.2 mm.

Sockets or feet 97 have a distance 307 of about ^a 8-9 mm, preferably about 8.5 MRA 135 bulges from the flange 79. Between the portion 129 and the flange 79 is a distance 308 of about 9 mm. Between the section 129 and the bulge 114 there is a distance 309 of about 8 to 9 mm, preferably about 8.2 mm.

Each sleeve or shoe 97 is curved along the inner edge of the housing 9 along an angle of about 11 to 12 °, preferably about 11.7 ° from the outside of the section 129 to the end tip 131.

Around sixteen clips or brackets 98 are provided. Referring to the illustration of Figures 5 to 7, and 4 9 4 9 9 9 9

9, 99 99 99 of FIG. 14, each projection 109 has a length 320 of about 3-4 mm, preferably about 3.5 mm, having a width 321 of about 2 mm. Each projection 110 has a length 320 of about 3 to 4 mm, preferably about 3.5 mm, and a width 322 of about 2 mm.

The slot 112 has a length 320 of about 3 to 4 mm, preferably about 3.5 mm, having a width 323 of about 4 to 5 mm, preferably about 4.2 mm. This defines an area of about 14 to 15 mm ² , preferably about 14.6 mm ² .

The rear surface 120 has a length 324 of about 1 to 2 mm, preferably about 1.1 mm. The area between the rear surface 120 and the rounded surface 116 has a distance 325 of about 5 mm. It is inclined from the vertical at an angle 326 of about 30 °.

The cam surface 126 lies at an angle 327 from a horizontal plane of about 16 °. The cam surface 126 has a length 328 of about 9 to 10 mm, preferably about 9.6 mm. The rear surface 136 has a length 329 of about 4 to 5 mm, preferably about 4.1 mm.

The distance 330 between the tip 125 and the cam surface 126 is about 2 to 3 mm, preferably about 2.9 mm. The area between the rear surface 136 and the projection 110 has a distance 332 of about 4 to 5 m, preferably about 4.3 mm, and is at an angle 331 of about 21 °.

φ φφ φ

Φ φ φ Φ Φ Φ · · · · 9 9 φ 9 9 φ

Φ Φ Φ φ · φφ

The clips or holders 98 have inclined walls, i.e., they are provided with a removal angle, the inclination of this angle being about 1 °. This is done to facilitate removal of the clips or holders 98 from the mold, as one of their planar surfaces is recessed or protrudes outward at an angle of about 1 ° relative to the opposite planar surface.

The clips or holders 98 protrude from the outer surface of the body member 3 of about 5 to 6 mm, preferably about 5.5 mm. The distance between the end tip of the portion 71 and the rear surface 120 is about 21 to 22 mm, preferably about 21.5 mm.

The sliding latch 151 has a length from the handle 155 to the end of the curved ratchet extension 162 of about 125 to 135 mm, preferably about 130 mm. It has a width of about 29 to 30 mm, preferably about 29.6 mm, across the shank portion 156.

The tab 164 has a length of about 18 to 22 mm, preferably about 20 mm, and has a width of about 5 to 6 mm, preferably 5.4 mm, over its widest part.

The outer skirt or projection 165 is rounded with a radius of about 1 to 2 mm, preferably about 1.5 mm, and protrudes from the tab 164 about 1 to 2 mm, preferably about 1.5 mm.

The curved pawl extension 162 extends a distance of about 1 to 5 mm, preferably about 3 mm beyond the edge of the guide structure 152 when the sliding latch 151 is in the closed position.

* ·· <·

Some other teachings regarding the arrangement described in U.S. patent application Ser. No. 08 / 928,684

This section sets forth some additional comments and insights relating to the arrangement described in U.S. patent application Ser. No. 08 / 928,684. These notes generally relate to further insights made with respect to the features shown in the drawings and / or insights. based on further study of described systems.

Attention will first be directed to the illustration of Figure 2. As shown in Figure 2 of U.S. Patent Application Serial No. 08 / 928,684, the end portion 71 of the body member 8 defines an outer edge 400. This outer edge 400 defines an open end of the body member. a member 8 for storing the respective elements during use.

The end 72 includes not only an outer edge 400, but also a shoulder or recess 401. This shoulder or recess 401 is defined by the following features: the inner diameter in the region 402 is greater than the inner diameter in the region 403. In the preferred embodiment shown in FIG. 2, the step size is at least 0.5 mm, usually 1.0 to 3.0 mm. For the illustrated arrangement, the thickness of the outer edge 400 in the area 402 is preferably about 1.0 to 3.0 mm, usually about 1.0 to 2.0 mm.

As shown in FIG. 2 of U.S. Patent Application Serial No. 08 / 928,684, a narrow edge 404 and an internal stepped shoulder 405 are defined at the outer edge 400 due to the different inner diameters in the regions 402 and 403. As also shown in the patent No. 08/928 684, an inner recess 410 is disposed in the housing j), which is oriented to receive the main narrow edge 404. This is frfrfrfr frfrfrfr frfrfrfrfr frfrfrfr frfrfrfr frfrfrfr frfrfrfr frfrfrfr frfrfrfr frfrfrfr frfrfrfr the inner recess 410 is defined between the outer wall 411 and the inner protruding ring 412. This inner protruding ring 412 is generally directed to align with the inner stepped shoulder 405 when the cover is positioned during operation. on the body member 9 to close the outer shell 2.

In use, the connection between the narrow lip 404 and the groove or internal recess 410 provides an advantageous weather seal which serves to prevent water from penetrating through the wall of the outer shell 2 along the seam or the joint between the cover 9 and the body member.

Note that in the arrangement shown in FIG. 2, the projection of the narrow lip 404 and the inner recess 410 protrudes into a position well away from the closure mechanism and protrudes well in the area of the end cap 9 from the end portion 75 during assembly. That is, there is a substantial overlap of the end region 72 with the outer wall 411, thereby ensuring a good seal against moisture penetration.

In a preferred arrangement as shown in U.S. Patent Application Serial No. 08 / 928,684, the inner recess 410 is preferably located at least 15 mm, but usually 25 to 40 mm within the housing 9 from the end 75. Even more preferably, the inner recess 410 is spaced approximately 34 mm. mm from end 75.

From the comparison of FIGS. 1A and 2 of U.S. Patent Application Ser. No. 08 / 928,684, it will be appreciated that in the preferred embodiment described with reference to these figures, the skirt 78 is positioned such that when the narrow edge 404 is positioned in the FIG. the recess 410 when the cover 9 is placed on the

9 · »♦ · · · · · φ 9 9 9 9 9 9 · 9 Φ φ · * φ Φ · '· Φ Φ. · Φ

Thus, the body member is the end of the relationship with the flange 78. necessarily abut on the flange 78, that touch.

This end of 75 does not have to mean that it does not have to

Preferably, however, the gap or space between the end 75 and the skirt 78 when mounting the cover 9 on the body member 3 is not more than about 5 mm, preferably less than about 2 mm, and is typically between 1 and 2 mm. When this occurs, the skirt 78 acts as a substantially closed and otherwise open end of the end 75 against the passage of a significant amount of dirt, snow, and the like between the cover 9 and the body member 8 at the connection closure 90. This has been particularly emphasized in US 08 / 928 684, where it has been described that the rotatable closure device was generally an internal or internally disposed arrangement.

In general, it has been found that for preferred systems, the housing 9 and the body member must be sized and positioned for ease of rotation with minimal resistance. It has been described in US patent application 08 / 928,684 that in some axial systems it may be desirable to use a filter element of suitable length provided with soft axial projections to cause some compression against the cover 9 in the axial direction to suppressing a "rattling or rattling" between the housing 9 and the body member 8.

In general, it has been found that such compression by the filter element can lead to undesirable

The amount of resistance to easy alignment and rotation of the housing 9 relative to the body member 8 and as the arrangement moves between the closed and open positions. Thus, preferably, the filter element has dimensions such that a substantial amount of compression when placing the cover 9 on the body member 8 does not occur. Preferably it has

the filter element with respect to the housing is of such dimensions that either the alignment is in a single line between the filter element and the housing 9 or the dimensions are such that the filter element is simply shorter in length than the distance between the opposing inner end surface of the housing 9 and the body member 8 ^.

In terms of minimizing clattering or rattling, it has generally been found that polypropylene plastic material may be used as a preferred material, or in some cases, by selecting appropriate dimensional tolerances and respective portions of the housing 9 and body member 8, or

VV7 »t rrwnrur 1 ωτίπ τη abin 2 1 + · oa + -i vn O n \ zl (ΊΠΠ v_y χ ^ χχιχ, -------- materials can be molded with such tolerances that there is no undesirable creaking or rattling. It is also possible to assist in the disappearance of this undesirable clatter or rattling by means of a closure device or by the use of an appropriate engagement mechanism.

In some cases, it is also possible to reduce the amount of rotational resistance by using center-to-center fastening systems to less than all interacting feet or brackets. This way, the amount of torque required to cause rotation can be reduced. In general, when centered, unwanted rotation of the housing 9 from the body member 5 during operation of the air cleaner can be minimized by utilizing a coupling closure device such as a male plug device.

In an alternative embodiment, if no plug-in plug device is desired, a higher level of frictional resistance between the feet and brackets can be achieved by the system design itself.

• to * 9 · to it: to it: to it 9> to it 'to it' to it · to it. ^: · It • it this it it · it it

With respect to the frictional resistance to rotation, it should be noted that with a relatively large amount of frictional resistance, it is very difficult to manually rotate in large diameter arrangements. Therefore, in large arrangements, it will be advantageous to have a lower amount of frictional rotational resistance relative to each cooperating bracket and shoe, using a mechanism such as the above-described male plug-in device useful to prevent undesired reverse rotation or disconnection.

On the other hand, in small diameter devices, for example of the order of about 4 inches or 5 inches in diameter, even if the engagement of each foot or bracket includes one or more frictional engagement points over the center (or resistance), usually the operator can easily rotate the cover using only one arm or hand to open the locking device, especially if the dimensions of the heel and holder arrangement are as previously described.

Indeed, for such small casing dimensions, in particular about 5 inches in diameter or even smaller, it may be advantageous in some cases not to use a plug-in plug mechanism due to a sufficient amount of rotational frictional resistance that can be generated in the system to significantly reduce accidental unwanted disconnection during use, since the system still exhibits a degree of frictional resistance that can be easily overcome by the use of human operator force, using only one arm or hand.

It is apparent from patent application US 08/928 684 that there is generally no requirement that each foot have an associated holder or that each holder have an associated foot. By varying the relative number of two, it is possible to reduce the amount of frictional resistance to rotation. This is due to the fact that any interaction between the shoe and the bracket (which also utilizes a frictional interaction or resistance across the center) contributes to the overall resistance to rotation, so that the force required to cause the cover to move between the closed and open positions , bigger.

It is not by changing the nature of the interaction between each foot and the bracket, but rather by changing the number of the beads or the number of brackets, the total amount of frictional interaction and thus the total resistance to rotation can easily be adjusted.

Attention will now be directed to the illustration of FIG. 10 and to FIG. 11 and to the cam and / or recessed surfaces that are on the bracket 98.

The shoulder 450 described in U.S. patent application Ser. No. 08 / 928,684 is on the front or front face of the bracket 98, that is, the front surface as the foot 97 moves during closure toward the bracket 98. The shoulder surface 50 generally lies at an oblique angle. This means that the surface is not perpendicular to the direction of rotation but is not parallel to it.

The shoulder 450 preferably lies at an angle of about 20 ° to 40 ° relative to the longitudinal axis of movement of the latch 160, or alternatively at an angle of about 110 ° to 130 ° relative to the direction of rotation during closing and opening. Such a shoulder of the surface 450 allows the surface 451 on the pawl 162 to easily move to a position between adjacent brackets 28 when the pawl moves into the closed configuration (see FIG. 11). Accordingly, it should be noted that in the illustration of FIG. 11 it is only shown

9 ·· · · 9 9 9 99 9 9 9 9 9 9 9 9 9 9 9 9 9 9

9 9 9 9 9 9 ·

9 9 9 9 9 9 9 9

9 9 9 9 9 9 9 9 9

9999 99 99 99 99 99 one bracket 98, so that alignment of surface 451 with the next bracket (to the left) is not shown here. However, this is perfectly understood by comparing FIGS. 10 to 11.

Attention will now be directed to the illustration of FIG. 10 and FIG. 11 of the front cam surface 453 on the bracket 98, and the cam surface 454 on the shoe 290. Some engagement between these surfaces during coupling, one jumps and moves along the other in order to assist in the appropriate orientation of the cover 9 and the body member 43 relative to each other during closure, it has generally been described in US patent application 08 / 928,684.

In addition, a preferred oblique angle of about 16 ° for cam surface 453 and about 22 ° for cam surface 454 (relative to the direction of rotation during closing and opening) has been described. With respect to the longitudinal axis of the locking pawl 160, these angles are respectively 106 ° and 112 °. In general, oblique angles (i.e., angles not equal to zero and not equal to 90 °) relative to the direction of rotation of the housing 9 relative to the body member 8 during closing and opening have an order of magnitude of 10 ° to 40 °, and typically 20 ° to 25 ° - (relative to the direction of rotation during closing or opening, relative to the longitudinal axis of the latch latch 160, these angles are of the order of 100 ° to 115 °), such angles being preferred for each of the cam faces 453 and 454 This follows from the overview of the types of interaction shown in the drawings of U.S. Patent Application Serial No. 08 / 928,684.

Attention will now be directed to the stepped back surface 460 on the bracket 98 as shown in FIGS. 10 and 11.

φ φ φ φ φ φ φ φ φ φ φ φ φ φ φ φ φ φ ·>> φ φ

The stepped back surface 460 is inclined at an oblique angle of about 17 ° to 25 ° relative to the longitudinal axis of the housing or the axis of movement of the latch 160, the shoulder lying in the direction of the surface 450 (in the extension of the area towards the latch 160 see FIG. Due to the direction of rotation during closing or opening, this angle is about 65 ° to 73 °. This inclination or shoulder helps prevent mechanical wedging when the latch begins to slide to the closed position unless a complete pivotal closure has occurred. In general, this may help the latch portion 461 to slide past the bracket 98 while maintaining a tight fit.

Further teachings of the description of US 08/928 684 include the following conditions:

patent exemplary technical applications

The filter element 55 has an outer diameter of about 60 to 280 mm and an inner diameter of about 40 to 160 mm. The filter element 55 has an overall length of about 160 to 640 mm.

- The body-fraction has a length of about 0 ° -HeosUi-strike-h3O-up

540 mm. The body member 8 has an outer diameter in the portion 71 of about 100 to 420 mm, and has an inner diameter in the portion 71 of about 105 to 410 mm. Each of the ribs 13 on the body member 8 has a width of about 3 to 12 mm. Each of the rings 14 is spaced about 5 to 20 mm from the adjacent ring 14. Each of the rings 14 has an outer diameter of about 100 to 300 mm and a width of about 0.5 to 5 mm.

The skirt 78 extends a distance of about 3 to 18 mm from the side wall section 65 of the body member 8, and about 15 to 60 mm from the bottom of the body member 8 and the adjacent portion 71. The deflection flange 67 has a length of about 60 to 250 mm. and having an outer diameter of about 80 to 340 mm. The distance between the inner wall of the body member 8 and the deflection flange 67 is about 8 to 35 mm.

The inlet 5 has an outer diameter of about 45 to 200 mm. The outlet 6 has an outside diameter of about 40 to 180 mm, an inside diameter of about 40 to 180 mm, and a length of about 55 to 230 mm.

The cover 9 has a length of about 65 to 250 mm. On the surface 76, the cover 9 has an inside diameter of about 105 to 420 mm, and here has an outside diameter of about 110 to 440 mm. The outlet conduit 46 has an outside diameter of about 25 to 120 mm, and has an inside diameter of about 25 to 100 mm.

Referring to FIG. 5 to FIG. 7 and FIG. 13, the section 128 has a length 300 of about 5 to 20 mm, having a width of about 0.5 to 4 mm. The section 129 has a length 301 to the end tip 131 of about 10 to 40 mm, having a length 32 to the edge of the bulge 135 o.

Sizes approx. 5 to 25 mm. The section 129 has a width of about 1 to 6 mm. The cam surface 127 has a length between the bulge 135 and the tip 131 of about 4 to 18 mm.

The tip 131 is rounded with a radius of about 0.4 to 1.8 mm. The bulge 135 is rounded with a radius of about 0.5 to 2 mm. It has a height 304 of about 1 to 7 mm from the edge of the section 129. The center of the tooth 114 lies at a distance of 305 from a section 128 having a size of about 3 to 14 mm. The barb 114 is rounded with a radius of about 5 to 20 mm.

·· 0000 • a ··· »• · 0 0 0 0 0 · · 0 0 0 0 0 0 000 4 0 4

00 0 0 00

The sleeves or feet 97 have a distance 307 about 4 to 16 mm from flange 135 to flange 7 9. This has a distance 308 about 4 to 16 mm between section 129 and flange 79. Between section 129 and bulge 114 there is a distance of 309 o 4 to 16 mm.

Referring to FIG. 14, each protrusion 109 of FIGS. 5 to FIG

about 1 to 7 mm, having width 321 0 sizes roughly 1 to 4 mm. Each of the protrusions 110 has length 320 0 sizes roughly 1 to 7 mm, having width 322 0 sizes roughly 1 to 4 mm. 'Slot 112 has length 320 O sizes roughly

up to 7 mm, having a width 323 of about 2 to 9 mm.

The rear surface 120 has a length 324 of about 0.5 to 4 mm. The area between the rear surface 120 and the rounded surface 116 has a distance 325 of about 2 to 10 mm. The rear surface 136 has a length 329 of about 2 to 8 mm. The distance 330 between the tip 125 and the cam surface 126 is about 1 to 5 mm. The area between the rear surface 136 and the projection 110 has

7 9 o rre »1 · g-h i? Q jar? The latch 151 has a length from the handle 155 to the end of the curved latch extension 162 of about 60 to 260 mm. It has a width over the shank portion 156 of about 10 to 60 mm. The tab 164 has a length of about 10 to 40 mm and has a width of about 2 to 10 mm over its widest part.

The outer skirt or projection 165 is rounded by a radius of about 0.5 to 4 mm, extending a distance of about 0.5 to 4 mm from the tab 164. The curved ratchet extension 162 occupies a distance of about 0.5 to 4 mm.

* · «» »» »» »

up to 10 mm beyond the edge of the guide structure 152 when the sliding latch 151 is in the closed position.

Improvement of certain embodiments of US patent application 08 / 928,684

Attention will now be directed to the figures of Figures 10 and 11. From these figures, it can be seen that if the shoe 97 is not fully rotated against the bracket 98, the latch 160 cannot fully move to the closed position. Rather than moving the latch 160 toward the closed position, it may remain hinged or wedged by abutting on the bracket 98, and is unable to move further forward to the closed position, i.e., toward the bottom of Fig. 11, unless rotation occurs.

Thus, if the operator of the device uses the forward movement (and stopping) of the latch 160 as a fully rotatable closure signal by the rotatable closure system, the system may appear to be closed to the user, but this "wedging" occurs. (It should be noted here that burned and described — angular — surfaces — are — oriented — so as to prevent this phenomenon.)

As a way of further minimizing the risk of this phenomenon, the latch 160 may be somewhat extended, and its movement may be adjusted such that more movement or greater movement of the (relative) latch handle is required during the latching operation of the latch 160 when the pivoting system is closed. 160. As a result, the user can detect that wedging has occurred because only a relatively small movement of the latch 160 has been made.

9999 9 9 9 9 9

9 9 · · 9 9 9 9

9 9 9 9

9 9 9 9 9 9 9 9 9

9999 99 99 99 99 99

However, for the specific arrangement shown in Figures 10 and 11, the movement of the latch 160 cannot be substantially prolonged due to the abutment that occurs between the portion 465 of the latch 160 and the portion 54 of the shoe 97 (see Fig. 11). Corresponding modifications are illustrated in Figures 29 and 30.

29 and 30 are generally analogous to FIGS. 10 and 11, except for the representation of the extended latch and modifications to accommodate the longer latch. It should be noted that the portion of the shoe 97 / that engages the bracket 98 / near the latch 160 'has been removed as compared to FIGS. 10 and 11. Thus, the latch section 468 'may very well extend beyond the space possible for the particular arrangement of Figs. 10 and 11. That is, the total sum of the longitudinal movements of the latch handle 160' may extend beyond the longitudinal distance so that it is less likely that the user will believe that the latch 160 'is closed when there is a mechanical wedging against the bracket 98.

-zrcre-is-groundling žemrazmt, -that-uspořaoani-poaie-oor.-of-3, and ^- according to FIG. 30, the arrangement of FIG. position (see FIG. 30) just as good as the closure 10 and by 11, since the latch 160 'does not prevent the housing from rotating so that the shoe 97' rotates out of the holder 98

It should be noted here that the latch extension 160 '(see Figs. 29 and 30) can be stored by means of the arrangement of Figs. 10 and 11 in U.S. Patent Application Ser. No. 08 / 928,684 without modifying this arrangement other than: a replacement a longer pawl 160 ', and a modification of the shape of a single pawl, i.e. a pawl, located at the point where the pawl 160' engages.

· 1 φ φ 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

ft ·· · * same as Dodle Datent

The remaining shoe on the housing 9 may be the shoe shown in FIGS. 5 to 7 of US 08/928 684. Furthermore, the design of the body member and the respective brackets 98 do not require any modification to accommodate the improved form of the extended latch 160 '.

It should be noted here that for the arrangement of Figs. 29 and 30, due to modification of the foot 97 ', there is at least one foot in the overall closed foot and bracket configuration, so that at least one of the two possible center closure locations is missing. This is due to the fact that the shoe 97 'is truncated and does not comprise a region 290 (see Figure 10, which allows a certain frictional resistance to rotation). In general, in typical arrangements this will mean a slight loss of resistance to the opening rotation. First, the engagement pawl 160 operates to block rotation until rotation is desired. Also, the frictional resistance between the other pairs of feet and holders throughout the rotary closure system may be subject to variations in the size of the desired closure resistance across the center.

Selected options

Figures 17 to 33 show improved arrangements utilizing some of the general principles of the patent application US 08/928 684.

Referring to Figures 17 and 19, the air purification apparatus is generally designated by 500 and is improved as described in this section. The air purification apparatus 500 is not shown assembled with the cover 503 mounted on the body member 504, since if depicted in this manner, the air purification apparatus 500 would appear to be very similar to that shown in Fig. 12 ( or if no locking latch or sliding mount is used, the device JL of FIG. 1) would be similar.

Also, in the figures of FIGS. 17 to 33, neither the main filter element nor the security element are shown. However, parts which are analogous to the components 55 and 56 of FIG. 4 can be used.

FIG. 17 is a side elevational view of body member 504. FIG. 19, a side elevational view of the housing 503 is shown. The improvements described herein generally relate to the rotary closure mechanism so that they are not readily detectable with the assembled air purification device 500. The features are generally rather hidden when the air purification device 500 is in an assembled state, and is only visible when the components comprising the housing 503 and the body member 504 are separated from each other and examined separately.

shown in FIG. 17

By comparing this body member 504 of FIG. 17 with the body member 8 of FIG. 1A and FIGS. 4 to 7, several differences can be readily determined. First, although the body member 504 comprises a plurality of holders 510, the holders 510 differ from the holders 98 of Figures 4 to 7, at least in terms of their particular external configuration or shape and their overall relative size.

In particular, the holders 510 are larger in terms of area (relative to the remainder of the housing and also absolutely preferred)

the holders 510 are differently shaped compared to the holders 22 ⁱⁿ connection with the term &quot; larger in terms of area, &quot; referring to the peripheral surface defined by the outer periphery of the holder when viewed from above in a top plan view.

Generally, when applied to a shell having roughly the same overall dimensions and size, the brackets 510, when constructed in the preferred manner described below, will generally each define a larger circumferential surface than each of the brackets 22. it is preferably at least 60 mm ² , more preferably at least 130 mm ² , even more preferably it is between 250 and 2500 mm ² , and is typically more than 350 mm ² , for example about 500 mm ² . Reference to "different shape" in this context refers to the shape of the outer circumference defined by holders 510 and holders 98.

Other differences relate to the following features:

the preferred embodiment of the holders 510 is formed from two sections, namely the section 511 and the section 512 (see FIGS. 18), and the sections 511 and 512 are oriented together as circumferential sections which cooperate with each other to surround each other or delimiting the central cavity or recess 514 (see FIG. 18).

By way of comparison, it should be noted that the holders 98 are a single piece, and there is no circumference surrounding the central cavity completely. The surface of the cavity or recess 514 has a size of at least 50 mm ² , preferably about 100 to 800 mm ² , and typically more than 150 mm ² , for example about 200 mm ² .

0

0 0 0

In addition, to accommodate the relatively large holders 510 of Figures 17 and 18, the relative length of the portion 518 (and absolute length for preferred embodiments), generally referred to as the cover engagement surface between the radial flange 519 and the end 520, is greater. for the preferred embodiment of Figures 17 to 28 than for the embodiment of Figures 1 to 16.

FIG. 17A is a cross-sectional view of the solution of FIG. 17. Note that end 520 includes a flange section 521, a shoulder or recess 522, and an end edge 523. In the preferred embodiment of FIG. 17 and FIG. 17A, the end edge 523 is circular so as to define a central axis 524.

In the design of FIG. 17A, the skirt portion 521 extends along a length of at least 5 mm and typically 8 to 20 mm. As a result, it may protrude relatively deep into the corresponding slot in the housing 503 (see FIG. 20) to provide a good weather seal between the body member 504 and the housing 503. That is, the slot 547 in FIG. —But relatively —h-tubercle — at least 25 mm; preferably 40 to 70 mm depth from the fold portion 547a to the adjacent edge 543. This constitutes a generally deeper sealing gap than shown for the design of FIGS. 1 to 16.

The end edge 523 of the body member 504 preferably extends at least 3 mm, and more preferably from 6 to 10 mm, into the slot 547 when the cover 503 is mounted on the body member 504. The rim portion 521 preferably also has a thickness of 1.0 to 3. 0 mm. In preferred embodiments, each bracket 510 is at least 10 mm, preferably 15 to 30 mm, and most preferably 23 mm from the end edge 523.

• *

Particular details and details regarding the construction of the brackets 510, as well as their preferred design features, are shown in Figure 18, and will be described in more detail below after a general description of the cover 503 has been made.

The housing 503 is shown in FIG. 19 and FIG. 19A. FIG. 20 is a cross-sectional view taken along the line 20-20 of FIG. 19A.

As shown in Figure 19, the exterior view of the housing 503 is generally similar to that of the housing 9 of Figures 1, 2 and 4, and in some cases may. be almost identical. One difference is that, in the region 530, the cover 503 may have a longer relative span (than the cover 9 in Figs. 1, 2 and 4) to cover larger holders 510, which are preferably used on the corresponding body member. 504.

The length of the edge or cover span 530 between points 530A and 530¾ is — usually — of the order of at least mm0 mm; 17 to 28 will typically be 15 to 30 mm.

As can be clearly seen from Figure 19A, the cover 503 is generally provided with a mounting groove or sliding washer or support 533 for receiving a latch.

19A, which is not shown in the figures of FIG. A preferred embodiment of the locking pawl may be as described below in connection with the figures of FIGS. 25 and 26, the function of the pawl being analogous to that of the closing pawl 160 of FIGS. 10 and 11.

• ·

It will be appreciated that the preferred embodiment showing the particular dimensions and shapes of the mounting latch components will be modified from the design of Figs. 10 and 11 to accommodate the dimensions and shapes of the preferred bracket 510. This is demonstrated in the mounting assembly. 25 and 26, as will be described in more detail below.

Referring now to FIG. 20, the cover 503 is shown in cross-section. The differences between the cover 503 and the arrangement of the cover 9 of FIG. First, it should be pointed out that the foot 537 (see FIG. 20) has a different design than the foot 97 (see FIG. 2). For example, the shoe 537 does not have a rectangular L-shaped shape. The shoe 537 has a portion that takes up an elongated bent banana shape. This is indicated in detail in conjunction with FIG. 21, which will be described in more detail below.

In addition, each foot 537 consists of two sections or portions. It is the front portion 540 of the shoe 537, which has a somewhat banana-shaped t-vag, and is a portion of the portion that engages the holders 510 during closure as will be described in more detail below. and a rear portion 541 of a shoe 537 that includes a relatively straight section, preferably located in the immediate vicinity of the edge 543.

The cover 503 includes a side wall section 545 which defines an annular slot 547 in conjunction with the rim or ring 546. This annular slot 547 is located here as a receiving slot or sealing slot for receiving the end edge 523 (see FIG. 17A) when the lid is The end 549 of the ring 546 may be used as a stop after alignment with the shoulder or recess 522.

(see Fig. 17A). If this function is analogous to that of the design of FIG. 2, the section of the housing 9 (see FIG. 2), which is analogous to the side wall section 545 (see FIG. 20), has a shorter relative length compared to the preferred embodiment shown in FIG. Fig. 20.

Note that in the embodiment of Figure 20, the housing 503 is provided with an outer shoulder 551 where the section 545 contacts the rest 553 of the outer wall 556. This shoulder allows the ring 546 to be easily molded integrally with the outer wall rest 553 556 in order to facilitate production and to achieve higher strength. A similar design was used for the cover 9 of FIG. 2.

FIG. 18 is an enlarged view of one of the holders 510. The holder 510 comprises sections 511 and 512. Generally, these sections 511 and 512 together define a holder 510 which, in the preferred embodiment shown, has an outer circumferential shape somewhat similar to " p with the relevant tail or trunk or thumb of this letter 'p', designated 555, and which

-When nasmoreváň- straight direction - to ^- said radial-flange-5T9 ~ (see Fig. 17).

Since the holder 510 is characterized as having a &quot; p &quot; configuration, this means that it either has the general shape of the &quot; p &quot; letter with an oval circumference or similar shape and associated tail, or has a corresponding mirror image. This means that this mirror image of the letter "p" will be considered as a "p.

A more general feature of the holder 510 of FIG. 18 is that in the preferred embodiment shown, the holders 510 each have a region that defines and surrounds the central cavity 514 and a protruding thumb, trunk, or tail 555 extending From this cavity 514, a particularly advantageous construction has, of course, a p-shaped or mirror-like configuration. It will be understood, however, that various variations and alternatives to this particular circumferential arrangement can be utilized, as will become apparent from the following description.

As further shown in Figure 18, section 511 generally includes a protrusion having a first side edge 560 and a second side edge 561 that are joined by end edges 562 and 563. The side edges 560 and 561 are generally straight and elongated. wherein their extent direction is generally parallel to the end edge 523 (see FIG. 17), or alternatively parallel to the direction of rotation of the cover 503 when mounted on the body member 504 and rotated between the closed and open positions. As an alternative definition, the direction of the extent of the side edges 560 and 561 may be generally perpendicular to the center axis 524 of the body member 504 (see FIG. 17 and FIG.

-7 7 \ \; __ jjj-i. ~ sx i ri; · ^:

On the other hand, the end edges 562 and 563 generally form an oblique angle both with respect to the center axis 524 of the body member 504 (see Figures 17 and 17A) and to the direction of the side wall extent 560, 561. Recommended angles for end walls 562 and 563 will be listed below.

Preferably, the peripheral arrangement of the section 511 is such that the side edge 561, which is located closer to the end edge 523 than the side edge 560, is at least 95% of the length of the side edge 560, preferably at least 90% of the length of the side edge 560, then the side edges 560 and 561 are positioned such that the side edge 5601 is centered relative to the side edge 560, that is, the approximate center of each is located on a straight line, lying perpendicular to each of these edges. That is, the end edges 562 and 563 of the preferred embodiments lie not only obliquely, but generally have a mirror image of each other.

Generally, a preferred embodiment of section 511 (see FIG. 18) may be viewed as comprising a generally D-shaped member having continuous sides delimited by sections 560, 561, 562 and 563, the continuous sides defining a peripheral The recommended dimensions for the height and thickness of this projection will be given below.

The section 512 comprises two general sections, namely the c-shaped section 570 and the respective tail or trunk or thumb 555. The c-shaped section 570 'defines the ends 567 and 568. Generally, the gap between these ends 567 and 568 is located such that the first side edge 560 of the section 511 lies therebetween. Preferably, the wall 560 abuts or is at least spaced from the "c" section 570 at points 572 and 573. As a result, a certain degree of elasticity and flexibility is obtained for a portion of the holders 510.

The section 512 is also preferably shaped as a projection defining an outer wall or edge 576 and an inner wall or edge 577. Certain portions of the general outer configuration of the outer wall or edge 576 and various surfaces and relative relative angles or surfaces relate to the function of the holder 510 during closing width. In particular, the four portions of the section 512 may potentially be engaged with the shoe 537 during use. These are parts 580, 581, 582 and 583. The function of these parts during closure of the closing device with the feet and holders will be apparent from the figures of Figures 22 to 24.

φ φ φ φ φ • · · · ·

Advantageously, the portion 580 may function or function as a front cam or cam surface which, during the closing rotation, may first engage a portion of the associated shoe and slip along the portion of the shoe for proper orientation of the shoe and bracket (and hence the cover and body member). to each other during closure. The portion 580 preferably lies at an oblique angle with respect to the direction of rotation, the size of which is from 40 ° to 60 °, and preferably about 49 °.

Alternatively, the portion 580 preferably forms an oblique angle with the central axis 524 (see FIG. 17A), which is about 30 to 50 ^υ and preferably about 41 °. The extent to which the portion 580 will always engage the portion of the associated shoe will, of course, depend on how well the operator manages to align the cover and body member before starting rotation. The worse the alignment of these parts, the greater the engagement will be, and the engagement will tend to align the respective parts.

Portion 581 on the other side acts as a resistance bulge, through the center, in an analogous manner as a protrusion 135 va · _on---bude during closure positioned at the bead part which comes into engagement during closing (see FIG. 22 to FIG 24) and will act as a center lock which counteracts reverse rotation until the respective rotational force is overcome.

The portion 582 generally defines a recess in which a portion of the bead that engages during closure is accommodated (see Figs. 22-24). Preferably, this portion 582 lies parallel to the flange 519 or with the direction of rotation during closure, or alternatively, this portion 582 may preferably lie generally perpendicular to the central axis 524.

9 99 9 9 »10 ·

9 • 9 99

Finally, the portion 583 acts as a rear abutment surface during closure, since the closing rotation is only possible as long as a portion of the associated foot rotates to abut the surface 583. As can be seen from FIGS. the relative dimensions of the portions 582 and 583, as well as the relative relative dimensions of the engaging portion of the foot, are selected such that during engagement a portion of the foot is inserted into the recess 582 so that further rotation through the surface 583 is prevented The recommended dimensions for the exemplary embodiment will be given below in connection with the description of the arrangement of FIGS. 27 and 28.

The three portions of the outer wall or edge 576 are generally oriented to facilitate the function of the associated latch (see FIGS. 25 and 26). These are parts 588, 589 and 590.

The portion 588 includes a front recessed surface that is analogous to the bevel outer not in the direction of the bore 588 le relative to the direction of rotation during closure, the bevel angle typically being about 100 ° to 120 °.

A recess formed by the extent of the portion 588 houses a portion of the latch when the holder 510 is positioned with the latch in close proximity to the tip 593. A portion of the latch is housed within the range 591 (see Figure 25). Preferably, each bracket 510 is provided with a recessed portion 588, as the cover 503 is preferably a plose 450 of FIG. 10. This portion 588 generally has an angle relative to the centerline 524 (see FIG. 17A), which is a &quot; wherein — is — recessed — from or a front point 593 up to a recessed point 594 of section 511. Alternatively, it may be said that the surface or live at an oblique angle with respect to the radial flange 519 or 9 9 9 9

9 · · · 9 9 9 9 9

9 9 9 9 9

9 9 9 9 9 9 9 9 9 9 designed to be positioned at various selected pivot positions relative to the body member 504.

The portion 58 9 (see FIG. 18) represents a rear recessed surface generally analogous to the surface 460 of FIG. 10. The recessed portion 589 preferably lies at an oblique angle to the center axis 524 (see FIG. 17A), which angle is in the range of 10 ° to 30 °, or alternatively, forms an oblique angle of about 60 ° to 80 ° with the flange 514 or with the direction of rotation during closure. The extent of the recess of part 589 is generally between points 598 and 599, where point 598 represents the rearmost point of part 589, that is, the direction of the recess lies toward part 588 in the direction of the section 511 from point 598.

The rear recess formed by the portion 589 accommodates the movement of the latch 600 (see Figs. 25 and 26) during closure, thereby preventing it from jamming. In this way, portion 589 functions similarly to portion 460 of FIG. 10 and FIG. 11.

-A —finally — part-of-10 is generally directed to J <

flange 519 from point 598, wherein its direction is generally parallel to the central axis 524 (see FIG. 17A), or alternatively generally perpendicular to flange 519 or the direction of rotation during closure. The portion 590 generally forms a support surface for a portion of the latch, as shown in detail in Fig. 25 and Fig. 26.

The inner wall or edge 577 generally lies between points 599 and 594, thereby defining an area 578 relative to the outer wall or edge 576, and also defines an inner area 514 that includes a recess or an internal cavity between sections 511 and 512.

9 9 9

I 9 9 4

It should be noted here that the arrangement of the sections 511 and 512 is such that no elongate portion of each portion has a thickness greater than about 2.5 mm between opposing sides. That is, the wall sections may bend somewhat in the direction of the central axis 524 due to stresses during operation due to the closing and opening activity. If the material of choice is preferably a polypropylene plastic material (which may be reinforced in certain cases), the preferred recommended thickness will be a thickness of about 4 mm or less, usually 2 to 3 mm. The thickness dimension mentioned herein again represents the thickness between the opposing sides and not the thickness of the protrusion extending outwardly from the remainder of the air cleaner body generally characterized herein.

Attention will now be directed to the figure of Fig. 21 showing the foot 537. As mentioned above, the foot 537 includes a front portion 540 and a rear portion 541.

The front part: · 40 of the foot 537 has a somewhat banana-like shape and

It comprises the sections 607 and 607. The section 606 lies ± generally in parallel with the flange 519 and with the direction of the closing rotation, or alternatively lies generally perpendicular to the central axis 524 (see FIG. 17A). The section 606 is a protrusion that is defined by opposing outer sides 609 and 610 and an end or tip 611. The end 611 is generally rounded and acts as a support surface against which the inner protrusion 581 is directed during closure. The rim 609 generally comprises an outer wall against which a portion 582 of the associated bracket 510 is directed or disposed therein during engagement (see FIGS. 22-24).

Section 607 generally forms an oblique angle with section 606 and is generally centered on a straight line forming an angle of magnitude. ·

about 65 ° to 85 °, preferably about 74 ° with the flange 519 and / or the direction of rotation during closure. The section 607 is delimited by the edges 614 and 615 and the tip 616. This tip 616 is generally rounded and oriented to support a portion 583 of the associated holder during closure (see Figs. 22-24).

The edge, edge, or wall 614 is generally formed as a cam surface or recessed surface that can function almost analogously to surface 454 of FIG. 10 during closure. That is, the wall 614 defines a recessed surface against which a portion 580 of the associated holder 510 may be directed during the closing rotation to achieve proper orientation of the cover 509 and the body member 504 for the closing rotation. During closure, if the cover 505 and the body member 504 are not properly aligned, the portion 580 will generally slip along the wall 614 to achieve final alignment and closure (see Figs. 22-24).

The section 540 preferably has a thickness of 1 to 3 mm between walls 609 and 610, or between walls 614 and 615, so that if it protrudes outwardly from the rest of the housing 503, it is thin enough to be extremely flexible. — During the closing operation, and to be strong enough to withstand the closing forces without significant risk of damage or breakage, and the like.

The section 541 is generally provided with an extension 620 positioned along the edge 543 (see FIG. 20) and extending at approximately the same radial distance as the section 540. The extension 620 preferably has a thickness of about 1 to 2 mm between sides 621 'and 622 with rounded tips 623 and 624. In operation, the attachment 620 generally prevents damage to the section 540.

· ♦ · · · Μ ·

9 · · 9 9 ····· 9 9 9 9 9 »

9 9 9 9 9 9 9 9 9 9 · *. · * ·· ·

Attention will now be directed to the illustration of Figures 22 to 24. These figures 22 to 24 illustrate the rotational function during closure.

Referring to FIG. 22, the holder 510 and the bead arrangement 537 are shown in particular, by which they are simultaneously rotated toward the closed position. The arrangement of FIG. 22 is an open configuration of the shoe and bracket mechanism.

Referring to FIG. 23, the shoe 510 and bracket 537 are partially engaged, engaging between the cam surface 614 on the shoe 537 and a portion of the bulge 581 and the polar cam surface 580 on the bracket 510.

Figure 24 shows a complete closure engaging between the tip 611 and the bulge 581 as well as between the tip 616 and the recessed surface 583.

Attention will now be directed to the figures of Fig. 25 and Fig. 26. Figs. 25 and 26 illustrate the operation of the 510 and the continuity of the latch 600.

In particular, FIG. 25 shows an arrangement of a latch latch 600 and a latch orientation having an extended latch 601 that extends beyond a portion of the bracket 510. Note the alignment between the inclination and surface 602 and latch 600, and the rear cam surface 589 of the bracket 510. may be similar to the arrangement described above in connection with the components 610 and 611, in terms of all of its features, except for the particular specific shape and size in the area occupied by the holder 510 during closure.

················································ · E e e * * * * * * * * * *

Referring to FIG. 26, the assembly is shown with the latch 600 pulled to the non-closed position, thereby releasing the assembly to rotate the holder 510 relative to the shoe 537.

Attention will now be directed to an alternative embodiment of the present invention as shown in the figures of Figures 31 to 33.

31 to 33 illustrate an embodiment analogous to that shown in FIGS. 5 to 7, but modified to achieve certain desired features. In particular, in the embodiment shown in Figures 31 to 33, the region indicated by reference numeral 700 is shorter than the region indicated by reference numeral 109 in Figures 5 to 7, and is preferably shortened to a distance such that instead of a frictional contact, a clear bulge 701. As a result, in the embodiment of FIGS. 31 to 33, the amount of frictional resistance to rotation is reduced.

The extension of the region 75 is shorter than that of region 125 of FIGS. 5 to 7, which allows less resistance between region 705 and region 706 during closure. This will also result in less frictional resistance to the rotational movement of the two components.

The modification shown in FIGS. 31 to 33 may be advantageous for those embodiments in which it is desirable to achieve less resistance to rotation and thus to facilitate rotation. In such embodiments, the risk of undesirable rotational movement during operation will then be avoided by utilizing a closure arrangement using closure pawls generally described above.

The purpose of the illustration of FIG. 31

33 to 33 is simply to demonstrate how, with only minor changes and modifications to the arrangement shown in FIGS. 5 to 7, it is simply possible to facilitate the pivotal movement of the housing relative to the body member. The assembly performed in the arrangement of FIGS. 31 to 33 can be applied to all holders for the foot retaining mechanisms or selected holders to achieve the desired level of frictional resistance to rotation.

Recommended dimensions for selected options

This section provides examples of operating material kits and specifications. These specifications are given by way of example only. A wide variety of alternative materials can also be used. With respect to the interacting holders 510 and feet 537, the technical conditions disclosed herein will be operable with a very wide variety of air cleaner designs and dimensions, and may require only slight adaptation for much smaller or much larger air cleaners.

In particular, the arrangement described will be adapted for use in a system having the following characteristics:

a typical flow rate of about 100 to 220 cfm (about 2.8 to 6.2 m ³ / min); and

a typical pressure drop of about 4 to 8 inches of water column (about 100 to 205 mm water column).

The body member 504 has a length of about 100 to 400 mm, for example more than 200 mm, and preferably about 270 to 290 mm. The housing 503 has a length of about 60 to 200 mm, for example more than 100 mm, and preferably about 130 to 150 mm.

About twelve to twenty, preferably about sixteen, holders 510 are provided.

Referring to FIG. 27, reference numerals shown in the drawings are given in the table below. These reference numerals correspond to the dimensions shown in FIG. 27 for one exemplary holder 510. For each such reference, typical or preferred or recommended dimensions are given for the sections corresponding to the dimensions shown in FIG. 27.

Relationship mark Dimensions 600 not more than about 60 mm; at least about 10 mm; preferably about 20 to 30 mm; even more preferably about 26 mm; 601 not more than about 40 mm; at least about 5 mm; preferably about 10 to 20 mm; even more preferably about 15 mm; 602 not more than about 35 mm; at least about 3 mm; preferably about 9 to 19 mm; even more preferably about 14 mm; 603 not more than about 10 mm; at least about 0.5 mm; preferably about 2 to 3 mm; even more preferably about 2.5 mm; 604 not more than about 20 mm; at least about 3 mm; preferably about 6 to 15 mm; even more preferably about 9 mm; 605 not more than about 12 mm; at least about 1 mm; preferably about 3 to 9 mm; even more preferably about 6 mm;

Relationship mark Dimensions 606 not more than about 25 mm; at least about 4 mm; preferably about 8 to 16 mm; even more preferably about 12 mm; 607 not more than about 38 mm; at least about 8 mm; preferably about 13 to 25 mm; even more preferably about 19 mm; 608 not more than about 42 mm; at least about 9 mm; preferably about 18 to 24 mm; even more preferably about 21 mm; 609 not more than about 36 mm; at least about 8 mm; preferably about 12 to 25 mm; even more preferably about 18 mm; 610 not more than about 35 mm; at least about 7 mm; preferably about 10 to 23 mm; even more preferably about 17 mm; 611 not more than about 10 mm; at least about 1 mm; preferably about 3 to 7 mm; even more preferably about 5 mm; 612 not more than about 150 °; at least about 80 °; preferably about 100 to 120 °; even more preferably about 110 °; Cl 2 .......... 11 J V O ΓΖϊ Z. 111. LAkJ Cl. -J VJ / at least about 5 °; preferably about 10 to 30 °; even more preferably about 20 °; 614 not more than about 90 °; at least about 25 °; preferably about 40 to 60 °; even more preferably about 49 °; 615 not more than about 80 °; at least about 20 °; preferably about 30 to 50 °; even more preferably about 41 °; 616 not more than about 140 °; at least about 35 °; preferably about 60 to 80 °; even more preferably about 70 °; 617 not more than about 40 °; at least about 5 °; preferably about 10 to 30 °; even more preferably about 20 °;

74 • · · · fr · • · • · · Frfr • · · · · · • · · • fr · • fr · '· • · · · • · · 9 9 9 Each of the holders 510 stands out at least o size roughly 2 mm, preferably about 3 to 8 mm, a still more preferably i about 6 mm from the outer surface of the housing 503. Holders 510

are provided with a removal angle of not more than 1 ° on each side for the purpose of assisting removal from the mold.

In the following table, reference numbers are shown in the drawings. These reference numerals correspond to the dimensions shown in Figure 28 for one example of the foot 537. Each reference numeral is associated with typical or recommended dimensions of the respective sections corresponding to the dimensions shown in Figure 28.

Relationship mark Dimensions 650 not more than about 5 mm; at least about 0.5 mm; preferably about 1 to 3 mm; even more preferably about 2 mm; 651 not more than about 5 mm; at least about 0.25 mm; preferably about 1 to 3 mm; preferably about 1.5 mm; 652 not more than about 15 mm; at least about 2 mm; preferably about 4 to 10 mm; even more preferably about 7 mm; 653 not more than about 25 mm; at least about 6 mm; preferably about 8 to 20 mm; even more preferably about 14 mm; 654 not more than about 6 mm; at least about 0.5 mm; preferably about 1 to 4 mm; even more preferably about 2 mm; 655 not more than about 10 mm; at least about 1 mm; preferably about 2 to 7 mm; even more preferably about 4 mm;

·· ··· «·· ···· ·· · · · · · · · · · · · · · · · · · · · 0 0 · · · · · 0 · · • 000 04 '· 0 ·· 00 00

Relationship mark Dimensions 656 not more than about 15 mm; at least about 2 mm; preferably about 4 to 10 mm; even more preferably about 7 mm; 657 not more than about 140 °; at least about 35 °; preferably about 65 to 85 °; even more preferably about 74 °; 658 not more than about 40 °; at least about 3 °; preferably about 5 to 25 °; even more preferably about 16 °;

Each of the feet 537 protrudes at least about 2 mm, preferably about 3 to 8 mm, and more preferably about 6 mm, from the outer surface of the body member 504. The feet 537 are provided with a removal angle of at most 1 ° on each side for purposes of facilitating mold removal.

The housing shown in Figures 17 and 19 may be assembled using a mounting tape similar to the mounting tape described above in conjunction with the illustrations of Figures 15 and 51, or using its variations or variations.

Claims (57)

PATENT CLAIMS An air purification apparatus (1, 500) comprising a body member (8, 504), a removable cover (9, 503) and a rotatable engaging closure (90), the rotatable engaging closure (90) having a first a non-closed position and a second closed position, characterized in that: (a) said body member is provided with a generally cylindrical surface (72, 518) for engaging the housing, (b) said housing is provided with a generally cylindrical surface (72, 518) for engaging the body, (c) said housing is detachable from said body member when said coupling member is in said first non-closed position; (d) said cover is attached to said body member when said coupling member is in --u-v-dil - u-z-a-v-vené v-pooz-e> - · · - - ............... ..... (e) said rotatable engaging closure comprises a plurality of holders (98, 510) and at least one foot (97, 537); (i) at least two of said holders have a front cam surface (453, 580) inclined in the range of 10 (Ii) at least two of said brackets protrude from either said body member or said housing; (iii) at least two of said protruding brackets are separated from an adjacent non-protruding protruding bracket (f) said cover is optionally rotatably slidable with respect to said engagement surface of the cylindrical body member during a selected movement of said coupling closure member between said region, (iv) said at least one foot having a cam engagement surface (454,614); said closed position and non-closed position. An air purifying apparatus (1, 500) comprising a body member (8, 504), a removable cover (9, 503) and a rotatable engaging closure (90), the rotatable engaging closure (90) having a first a non-closed position and a second closed position, characterized in that: (a) said body member is provided with a generally cylindrical surface (72, 518) for engaging the housing, (b) said housing is provided with a generally cylindrical surface (72, 518) for engaging the body, (c) said housing is detachable from said body member when said coupling member is in said first non-closed position; (d) said cover is affixed to said body member when said coupling member is in said closed position; (e) said rotation; the actuatable coupling device comprises a plurality of p-shaped holders (510), and (f) said housing is optionally rotatably slidable with respect to said engagement surface of the cylindrical body member during selected movement of said coupling device between said closed position and the non-closed position. An air purifying apparatus (1, 500) comprising a body member (8, 504), a removable cover (9, 503), and a rotatable engaging fastener (90), the rotatable engaging fastener (90) having a first a non-closed position and a second closed position, characterized in that: (a) said cover is provided with a sliding support (152, 533), said sliding support defining a mounting groove for the engagement pawl, (b) said rotatable engaging closure device being of a corrugated position; TOovárro "and ^- u'spořá-dán'o ^- p ^_ RCR-výb'ěrový p'O'hybmezi said unclosed position and said closed position by a rotational movement of said cover relative to said body member, and (c) an insertion pawl (151 600) is slidably disposed in said mounting groove of said sliding support, said insertion pawl being optionally slidable between a plug-in position and a released position when said pivotable engaging closure device is in said second closed position, 4 «·· 444 · ·· 444 4 4 4 4 4 4 4 4 4 4 4 4 '4 4 4 4 4 444 44 44 4.4 (i) said plug-in latch, when optionally slid in the direction of said body member into said engagement position, is positioned to block rotation of said housing relative to said body member from said closed position to said non-closed position, and (ii) said push-on pawl, when optionally slid outwardly from said body member to said released position, is positioned to allow rotation of said cover relative to said body member between said closed position and said non-closed position. An air purification device (1) comprising a body member (8), a removable cover (9) and a pivotable engagement fastener (90), the pivotable engagement fastener (90) having a first non-closed position and a second closed position characterized in that: - (- and -) - said-body-with-member-is-pa-t-river-been-in-a-1-eo-vo-flat (72) (b) said cover is provided with a generally cylindrical surface (411) for engaging the body member; (c) said cover is detachable from said body member when said coupling member is in said first non-closed position; ) said cover being attached to said body member when said coupling fastener is in said closed position, (e) said rotatable engaging coupling fastener comprises a plurality of holders (98), (i) each of said holders (98) being provided with a first protrusion (109) and a second protrusion (110) spaced from each other, (A) said first protrusion (109) and said second protrusion (110) define a slot therebetween, (f) said cover is optionally rotatably slidable to said engagement surface of the cylindrical body Selected member during movement of the coupling locking device between said closed position and an uncapped position. An air purification apparatus (1, 500) comprising a body member (8, 504), a removable cover (9, 503), and a rotatable engaging closure (90), the rotatable engaging closure (90) having a first non-closed position and second closed position, -v — y — z — n — and — í — u — j — í — e — í-s — e - t — t-ra ——— ž-e - :( a said rotatable engaging closure device is designed and arranged for selectively moving between said non-closed position and said closed position by rotating said housing relative to said body member, (b) said body member having an outer end (520) provided with an internal shoulder ( 401, 522) and defining an edge (523), and 0 0 0'0 · 0'0 0 9 0 (C) said cover is provided with an inner recess (410, 545) arranged to receive said edge of said body member when said cover is mounted in a cover manner on said body member; i) said inner recess has a continuous closed inner surface. An air purifying device according to any of the above of claims 3 and 5 in z and more c í se that: (a) said body member end wall, contains a side wall (8) a (i) specified physical member defines open inside (4) cleaning equipment air and inlet (5) (iii) said body member comprises a generally cylindrical surface (72, 518) for engagement with the cover, and (b) said cover. (b) said side wall defines an open end for selectively inserting and removing the air filter element (55); comprising a generally cylindrical surface (411, 521) for engaging the body member, (i) said housing optionally rotatably sliding relative to said cylindrical surface for engaging the body member during selectively moving said coupling closure between said closed position and said non-closed position. ·· ·) » Air purification device according to any one of claims 1, 2 and 4, characterized in that: (a) said body member comprises a side wall (8) and an end wall, (i) said body member defines an open interior (4) of an air purification device and an air inlet (5), and (ii) said side wall defines an open end for selectively inserting and removing the air filter element (55). Air purification device according to any one of claims 3 and 5, characterized in that: (a) said pivotable engaging closure device comprises: a bracket arrangement comprising a plurality of brackets (98, 510) disposed either on said housing or on said body member, and a bead arrangement; pa-te-k - (-9-7-, -5-3-7-) - at the place of the housing or on the body member . Air purification device according to any one of claims 1 and 2, characterized in that: (a) said pivotable engaging closure comprises a shoe arrangement comprising a plurality of feet (97, 537) disposed either on said housing or on said body member; (i) said cover member is secured to said body member by rotatably engaging between Said bracket arrangement and said shoe arrangement when said coupling fastener is in said second closed position. Air purification device according to any one of claims 1, 2, 4, 8 and 9, characterized in that: (a) each of said brackets includes a front surface (450, 588) and an opposed rear surface (460, 589); (i) each of said brackets is positioned such that when said cover is rotated relative to said body member, to the specified closed position: (A) said front surface of each bracket is located on the side of each bracket that is rotating, (1) said front surface is provided with a sponge part. .í.c.í_p.od_kos-ým. an angle relative to the direction of rotation of said housing during operation of said coupling member for movement between said * a non-closed position and said closed _b position. . . Air purification device according to claim 10, characterized in that: (a) the rear face of each bracket is provided with a portion that is not parallel to the recessed part of the front face of the same front face of the same front face of the same front face of the same face. Φ Φ Φ φ Φ Φ Φ ΦΦ ΦΦ ΦΦ bracket that lies at an oblique angle with respect to the indicated direction of rotation. Air purification device according to any one of claims 10 and 11, characterized in that: (a) a portion of the rear surface of each bracket lies at an oblique angle with respect to said direction of rotation. Air purification device according to any one of claims 8 and 9, characterized in that: (a) said shoe arrangement and arrangement are positioned such that the coupling fastener in said closed position, all the feet and holders are located below at least one of said body member and said housing portions, wherein there is no opening in the housing positioned directly over one of the feet or brackets. said bracket if specified An air purification device according to any one of claims 1, 4, and 8-y-z-n-a-e-i-s-e. (A) each bracket has a non-rectangular outer circumference. Air purification device according to any one of claims 8, 9 and 13, characterized in that: (a) each foot is provided with a banana-shaped section. An air purification device according to any one of claims 1, 2, 8, 9, 13 and 15, characterized in that: ΦΦ ΦΦΦΦ ΦΦ · · · · φ φ φ φ φ ΦΦΦ φ φ φ φ φ φ φ Φ Φ Φ Φ Φ Φ.... (A) each bracket is p-shaped and is provided with a tail (555) extending generally perpendicular to the direction of rotation of said housing relative to said body member during closure. An air purification device according to any one of claims 1, 2, 8, 9, 13, 15 and 16, characterized in that: (a) each bracket defines an outer circumferential surface of at least 130 mm ² . 18. The air purification apparatus of claim 17, wherein: (a) each holder defines a central cavity having an area of at least 50 mm ² . Air purification device according to any one of claims 8, 9, 13 and 15, characterized in that: (a) said housing is a molded plastic member provided with molded feet, and (b) said body member is a molded plastic structure provided with molded holders. An air purification device according to claim 19, characterized in that: (a) said cover is provided with at least ten feet, and this is this to this this to this to this to. · · · · To * * * * * * • • • • • • (b) said body member is provided with at least ten holders. An air purification device according to any one of claims 1, 2, 4 and 8 to 20, characterized in that: (a) each bracket is at least 10 mm from the open edge of said body member. Air purification device according to any one of claims 1 to 4, 7 and 9, characterized in that: (a) said body member comprises an outer end (520) - provided with an internal shoulder (401, 522), and (b) said cover is provided with an internal recess (410, 545) configured to receive an edge (523) of said body member, if said cover is mounted in a cover manner on said body member. Air purification device according to any one of claims 5 and 22, characterized in that: (a) said inner shoulder of said body member and said inner cover recess are sized and arranged such that said edge of said body member protrudes at least 3 mm into said recess when said cover is mounted in a cover manner on said body member. Air purification device according to any one of claims 5, 22 and 23, characterized in that: frfr frfrfrfr frfr frfrfrfr frfr frfr frfr fr fr fr fr fr fr fr fr fr fr fr fr fr fr fr fr fr fr fr fr fr fr fr fr · fr frfr frfr frfr (a) the outer end of said body member is provided with a rim portion (521) having a size such that it extends at least 5 mm from said inner shoulder to said outer end (520) of the body member. Air purification device according to any one of claims 5 and 22, characterized in that: (a) said inner shoulder of the body member and said inner recess of the housing are dimensioned and arranged such that said edge of the body member protrudes at least 6 mm into said recess when said cover is mounted in a cover manner on said body member. Air purification device according to any one of claims 23 to 25, characterized in that: (a) said recess is positioned such that its fold section is at least 15 mm from the open end of said cover _; --- An air purification device according to any one of claims 23 to 25, characterized in that: (a) said recess is positioned such that its fold section lies at least 25 mm from the open end of said housing. Air purification device according to any one of claims 5, 22 and 23, characterized in that: • 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 · 9 9 9 9 9 9 9 · 9 9 9 9 ^ 9 9 _ 9 9 9 (A) said outer end of the body member is provided with a rim portion (521) having a size such that it extends at least 8 mm from said internal shoulder to the open end of the body member. Air purification device according to any one of claims 4 and 5, characterized in that: (a) said rotatable engaging closure member is provided with a shoe arrangement comprising a plurality of feet (97, 537) disposed either on the housing or on the body member; said retainer arrangement and said shoe arrangement when said coupling fastener is in said second closed position. Air purification device according to any one of claims 9 and 29, characterized in that it comprises: (a) a movable plug-in pawl (151, 600), optionally positioned between the engagement and release positions; (i) said latch latch, when in said engagement position, positioned to provide a selected bracket between a portion of the latch latch and a selected shoe member to prevent the housing from rotating relative to the body member, and (ii) said latch latch when in said released position , releases the selected holder by 44 ··· 4 4444 4 · ·· 9 9 9 9 9 9 4 4 4 4 9 9 9 9 4 _t 9 9 9 9 9 9 9 '' 4 4 4 ^ 4 4 '4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 to allow a selected rotational movement of the housing relative to the body member. 31. An air purification device according to claim 30, comprising: (a) a slide support (152, 533) on said housing; (i) said insertion pawl is slidably disposed in said slide support for a selected movement between said engagement position and said released position. Air purification device according to any one of claims 8, 30 and 31, characterized in that: (a) said plug-in latch is _; provided with a first resilient extension (162) oriented to retain said latch slidably disposed in said sliding support. 33. Zi-Z.e.nj-to-cish-t-n-i-in-dueh-and-under-te-n-a-ro-ku-32 characterized by This is done by: (a) each of said holders is provided front flat (450, 588) and opposite rear flat (460,589), (i) each of said brackets being positioned such that when said cover rotates with respect to said body member towards said closed position, said front surface of each bracket is located on the side of each bracket that is rotating, said rear surface is located on the side of φφ φφφφφφφφφφφφφφφφ. And (b) said first resilient extension of the plug-in latch defines a wall. positioned so as to extend along said rear face of one of said holders when said latch is in said closed position. 34. Equipment for air purification according to any of claims 1 to 33 characterized by e by that contains: (a) output a tube (10) attached snap to said body member. 35. Equipment for air purification according to any of claims 1 to 34 characterized by e by that contains: (a) a primary filter element (55) operatively arranged on said device. 36. The air purification device of claim 35, comprising: (a) a security element (56) operatively arranged on said device. A method of closing a device according to claim 1, characterized by the method comprising the following steps: for purifying air according to the method of (a) covering the open end of the body member with a cover, and 99 9 99 9 9 9 '· · · · · · · · 9 9 9 9 9 9 9 ·· 9 9 9 9 9 9 9 9 9 9 ·· (9) rotating the cover relative to the body member to engage a plurality of feet with selected holders and attach the cover to the body member. 38. A method of closing an air purification device according to claim 2, wherein the method comprises the following steps: (a) covering the open end of the body member with a cover, and (b) rotating the cover relative to the body member to engage one of the selected p-shaped holders during closure. 39. The method of claim 38, wherein: (a) said rotating step comprises engaging the selected bead portions with the tail of the selected p-shaped bracket to block the possibility of rotation of the housing relative to the body member above the selected rotational size _____---- 40. A method of closing an air purifying device according to claim 3, wherein the method comprises the following steps: (a) covering the open end of the body member with a cover, (b) rotating the cover relative to the body member to engage a rotatable engaging closure device, and; 0 0000 0 0000 0 00 00 00 00 00 (c) pushing the latch into engagement positions to block undesired reverse rotation of the housing relative to the body member. 41. A method of closing an air purification device according to claim 4, wherein the method comprises the following steps: (a) covering the open end of the body member with a cover, and (b) rotating the cover relative to the body member to engage one of the selected holders (98), the holder having a first projection (109) and a second projection (110) between by which a recess (112) is provided. 42. A method of closing an air purification device according to claim 5, wherein the method comprises the following steps: (a) covering the open end of the body member with the cover, and (b) directing the body member edge (523) to the interior recess (410, 545) of the cover by rotating the cover relative to the body to engage the rotatable engagement closure. 43. A housing (9, 503) for an air purifying device, the housing comprising: (a) a generally cylindrical side wall (65b) provided with a engagement surface (411, 521) of the body member; and (b) a plurality of closure projections (98, 510, 537) that prevent engagement during engagement; for the cover to be detached from the remainder of the air purifying device during use when in the closed position, (i) at least one of said closing protrusions protrudes from said engagement surface of the body member, and (ii) said at least one of said closing protrusions it protrudes from said engagement surface of the body member, having at least one of: (A) a p-shape, (B) a clip shape having a perimeter defining two spaced apart projections (109, 110) between which a recess (112) is disposed, and (C) a banana shape. 44. A cover (9, 5, 5, 3) —white — n-to-n-to-n — at the o-the-end of the body member of the apparatus, wherein: contains: Air purifying said cover (a) a generally cylindrical side wall (65b) defining an open interior and having a body member engagement surface (411, 521), (i) said body member engagement surface being on an interior surface of said side wall, (Ii) said engagement surface of the body member is in open communication with said open interior when the cover is removed from the body member, (b) a plurality of (i) at least one of said feet protrudes from said engagement surface of the body member and is directed so that a portion of the body member lies between said at least one of said feet and said open interior when the cover is operatively mounted on the body member; ) said at least one of said feet projecting from said engagement surface of the body member is L-shaped. 45. Cover (9, 503) for. an air purifying device, the housing comprising: (a) a generally cylindrical side wall, a grinding surface, a p-1-body member, (i) said engagement surface of the body member is on the outside of said side wall, (b) ) a plurality of feet, (i) at least one of said feet protrudes from the engagement surface of said body member, and 99 · r · r r «« «« «« «« * * * * * * 99 99 9 9 9 9 • 9 9 9 9 9 · · · · 9 99 9 · 99 (ii) at least one of said feet that protrudes from said engagement surface of the body member is L-shaped A cover (9, 503) for covering the open end of a body member of an air cleaning device releasably secured thereto by rotating the cover relative to the body member to engage a rotatable engaging closure device, the cover comprising: (a) a generally cylindrical side wall (65b) defining an open interior and having: (i) a body member engagement surface (411, 521), wherein said body member engagement surface is in open communication with said open interior when the cover is removed from the body member (b) a plurality of closure members. wherein at least one of said closure projections protrudes from said engagement surface of the body member, (i) said at least one of said closure projections is designed and arranged to engage and close with a portion a body member when the cover rotates relative to the body member, and (c) a receiving recess (410, 547) that is defined between said side wall and said ring, (i) said recess has a continuously closed inner surface, and (ii) said recess is directed to receive an edge of the body member when the cover is operatively arranged on the body member to provide a seal against the effects m to prevent liquid from penetrating the jacket wall along the seam between the cover and body member. A cover (9, 503) for covering the open end of a body member of an air purifying device releasably secured thereto by rotating the cover relative to the body member to engage a rotatable engaging closure device, the cover comprising: (a) a generally cylindrical side wall (65b) having: (i) a engagement surface (411, 521) of the body member, (ii) a sliding support (152, 533), said sliding support defining a mounting recess for the plug-in latch, (b) a plurality of locking lugs projecting from said engagement surface of the body member (i) said at least one of said closure projections is designed and arranged to engage and close with a portion of the body member when the housing rotates relative to the body member, (c) a snap-in latch (151, 600) disposed in said mounting recess of said mounting recess sliding abutments, wherein said latch is optionally movable between a closed position and a released position, (i) said latch is positioned to block rotation of said housing relative to the body member when the housing protrusions have rotated to engage portions of the body member, and when the latch has been moved to a closed position, and (ii) said latch, p when moved to the released position, it is positioned to allow rotation of said cover relative to the body member. A cover according to any one of the preceding claims 43, 46 and 47, characterized in that: (a) said engagement surface of the body member is on the inner portion of said side wall, and (b) said closure projections extending from the inner portion. Cover according to any one of the preceding claims 43, 46 and 47, characterized in that: (a) said engagement surface of the body member is on the exterior of said side wall, and (b) said closure projections extend from said exterior. • · • ·· · A cover according to any one of the preceding claims 43 to 45 and 47, further comprising: (a) a ring (412, 546) protruding inwardly of said side wall, (b) a receiving recess (410, 547) between said side wall and said ring, (i) said recess being configured to receive an edge of the body member. 51. The cover of claim 46, further comprising: (a) a ring (412, 546) protruding into said side wall; (i) said recess is defined between said side wall and said ring. A cover according to any one of the preceding claims 50 and 51, characterized in that: (a) said ring has an end (75, 549), (i) said end of said ring is directed to engage a portion of the body member when the cover is operatively arranged on the body member. A cover according to any one of the preceding claims 46 and 50 to 52, characterized in that: (a) said recess is positioned such that its fold section is located at least 15 mm from the open end of said cover. 54. A cover according to any one of the preceding claims 46 and 50 to 52, characterized in that: (a) said recess is positioned such that its fold section is located at least 25 mm from the open end of said housing. RR tz. i \ i. γ u characterized in that claim: (a) each of said clips comprises a front surface and an opposed rear surface; (i) said front surface is provided with a recessed portion facing at an oblique angle to the direction of rotation of said housing when mounted on the body member. 56. The cover of claim 55, wherein: (a) said rear surface of each clip is provided with a portion that is not parallel to said recessed portion of the front surface of the same clip. 57. The cover of claim 56, wherein: (A) a portion of the rear face of each holder lies at an oblique angle with respect to the direction of rotation of said housing when mounted on the body member. 58. A cover according to any one of the preceding claims 43 to 57, further comprising: (a) an outlet tube in open communication with the inner portion of said housing. 59. A cover according to any one of the preceding claims 43 to 58 further comprising: (a) a filter element operatively arranged in the interior of the housing. 60. The cover of claim 59, wherein: (a) said filter element is three-dimensional and one-n-one-n-space is replaced in said housing.