Classifications

• • A—HUMAN NECESSITIES
  • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
  • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
  • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
  • A47L9/02—Nozzles
  • A47L9/06—Nozzles with fixed, e.g. adjustably fixed brushes or the like
• • A—HUMAN NECESSITIES
  • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
  • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
  • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
  • A47L9/02—Nozzles
• • A—HUMAN NECESSITIES
  • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
  • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
  • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
  • A47L9/02—Nozzles
  • A47L9/06—Nozzles with fixed, e.g. adjustably fixed brushes or the like
  • A47L9/0606—Nozzles with fixed, e.g. adjustably fixed brushes or the like rigidly anchored brushes, combs, lips or pads
  • A47L9/0626—Rigidly anchored lips, e.g. nozzles adapted for picking up liquids
• • A—HUMAN NECESSITIES
  • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
  • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
  • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
  • A47L9/02—Nozzles
  • A47L9/06—Nozzles with fixed, e.g. adjustably fixed brushes or the like
  • A47L9/0666—Nozzles with fixed, e.g. adjustably fixed brushes or the like with tilting, floating or similarly arranged brushes, combs, lips or pads

Definitions

• the present invention relates to a dust vacuum cleaner nozzle, and more particularly to an improvement in the dust removal performance of carpet type surfaces.
• a vacuum cleaner nozzle is generally in the form of a usually plastic housing comprising in particular a base plate which, associated or not with a cover, delimits a suction channel.
• the base plate has at least one flow channel open to the surface to be cleaned and in air communication with the suction channel.
• Such a nozzle 100 includes a scraper rule made of rubber-like material, having two lips 139 and 140 articulated around a fastener 121. On either side of this rule are arranged openings connecting the flow channel 141 with the suction channel 120.
• the lip 139 closes the opening 260. The air is then sucked under the front edge 132 of the nozzle.
• the rule allows not only to collect and scrape the dust on the surface to be cleaned, but also to close the half-channel located at the rear of the rule relative to the direction of movement.
• carpet will be used to designate any type of surface composed of fibers and / or pile, these surfaces possibly being carpets, wall coverings, towels, carpets, etc. Indeed, for such surfaces, most of the dust is localized between the pile of the carpet, or in physical connection with the carpet, so that it is difficult, with a simple flow of suction air, to dislodge this dust.
• a vacuum cleaner nozzle comprising a scraper rule fixedly arranged in the median plane of the nozzle nozzle flow channel and making it possible to spread the carpet pile in order to reach dust encrusted. If such a nozzle is more suitable for carpet type surfaces, due to the rigidity of the rule used, it is not very effective because part of the suction flow does not use the effect of the rule to increase the dust release power. In addition, the effect of the rule is not entirely satisfactory.
• the present invention aims to remedy the drawbacks of the prior art by providing a nozzle with improved performance, while remaining reliable in the long term and at a reasonable cost.
• a vacuum cleaner nozzle having at least one flow channel substantially transverse to the direction of movement of the nozzle, open towards the surface to be cleaned, and connected aeraulically to a suction channel; at least one blade capable of being in contact with the soil to be cleaned, arranged parallel to the channel and adjacent to it; as well as means for closing the channel, owing to the fact that the means for closing open the channel when the nozzle is moved in a direction in which the blade is found upstream of the channel and close the channel when the nozzle is moved in the opposite direction, the blade then being located downstream of the channel as seen with respect to this direction of movement.
• the scraper blade capable of being in contact with the ground being located upstream, in other words in front of the channel relative to the direction of movement, the pile of the carpet is then separated by the passage of the blade, which allows the dust to be found in the flow channel precisely open to the suction channel.
• the function of the blade is no longer to collect dust under the flow channel, the effectiveness of which is questionable, but to solicit the soil fibers to dislodge the dust, immediately caught in an air flow.
• the sealing means could be based on a cylinder driven in rotation by the wheels of the squeegee, this cylinder being furnished with weights whose point of rotation would be located on the periphery and forming projections only in one direction of rotation, these projections acting on an engagement, or disengagement, mechanism for a channel shutter. Such a mechanism could prove to be quite complicated.
• the blade is movable under the effect of friction against the surface to be cleaned in one direction, respectively in another direction, depending on the direction of movement of the nozzle, and is connected to shutter means, respectively opening , from the adjacent canal.
• the blade may be integral with the end of a plate movable in translation in grooves arranged in the lower plane of the nozzle perpendicular to the flow channel, this plate having an opening corresponding to the blade mouth of the flow channel followed by a closing flap.
• This plate is then arranged so that the friction of the ground, when the nozzle is advanced, pushes the blade towards the channel so that the opening of the plate comes in correspondence, and that, when the nozzle is pulled back, the soil friction moves the blade away from the channel bringing the closing flap into position.
• the blade can be pivotally mounted around its upper edge on an axis parallel to the surface to be cleaned, this axis carrying a pinion meshing with a gear wheel, or with a gear, animating at the outlet a shutter at the intersection of the flow channel and the suction channel.
• a plate is mounted movable in rotation about an axis parallel to the channel, this axis separating this plate into a lower scraper blade and an upper flap for closing the channel, this axis being arranged on a side of the mouth of the flow channel, the shutter part being capable of coming to bear against two stops arranged respectively at the front and at the rear of the channel.
• a reverse scraping-opening device has thus been produced very simply.
• This mechanical action which does not fail to occur as soon as the nozzle is moved, can be reinforced by the presence of a foam, a seal, or a felt at the level of the upper end of the shutter. obturation or at the level of the internal walls of the squeegee duct in relation to the flap, so that during the pivoting of the blade, the foam, the seal or the felt are slightly compressed and ensure good sealing and therefore good obturation of this part of the canal.
• the axis of the plate is located between a tenth and a third of the height of the plate, leaving most of the plate in operation as a shutter.
• the scraper blade protrudes from a height of between one and five millimeters when the shutter is in abutment against a stop. Thanks to this scraper blade, we can better define the ground clearance of the squeegee at the level of the flow channel, therefore the air flow.
• the axis of the plate is arranged in the median plane of the channel which it splits into two channels, the shutter part being capable of coming to bear against two stops arranged respectively at front and back of the canal.
• two channels open side-by-side, and the axis of the plate being arranged between the two adjacent channels, the shutter part being capable of coming to bear against two stops arranged respectively at the front of the front channel and the back of the rear channel.
• the surfaces of the two parts of the flow channel and / or of the part of the suction channel immediately adjacent to the surface to be cleaned, situated on either side of the blade are substantially different.
• a larger surface then induces a greater vertical force for maintaining the nozzle on the ground.
• This structure then makes it possible to differentiate the passage of the squeegee in one direction or in the opposite direction, the squeegee undergoing a stronger force of attraction towards the ground when the squeegee is moved in a direction rather than in the opposite direction.
• This difference in area can also be achieved by an asymmetrical position of the plate or by the profile of the flow channel, or else by parts added to the plate.
• the level of penetration of the blade into the carpet can be different depending on the direction of movement of the nozzle, in order to cause a force of displacement of the nozzle by the user different according to the direction of movement.
• This level, or ground clearance can be obtained by a different angle of rotation of the blade depending on the direction of movement, or by an axis of rotation of the plate off-center with respect to said plate.
• the nozzle has a mechanism for adjusting the height of the blade in the flow conduit.
• This device allows on the one hand to adjust the height of the blade in the factory according to the types of carpet frequently encountered in the various countries, and on the other hand, it allows the user to adapt his crevice tool to the different types of carpet. that he may have in his possession, in order to get the most out of his device.
• the latter comprises at least one sealing flap situated at the front and / or at the rear of the channel or channels.
• FIG. 10 is a schematic side sectional view of a nozzle of the prior art
• FIG. 10 shows the operating principle of the present invention applied to a single channel, in a schematic view in section lateral,
• FIGS. 2a and 2b show the operating principle of the present invention applied to a double channel, in a schematic view in a side section,
• FIG. 3 is a schematic view of a vacuum cleaner nozzle according to the present invention.
• FIGS. 4a and 4b show a first alternative embodiment of the present invention in a lateral schematic section
• FIGS. 5a and 5b show a second alternative embodiment of the present invention in a lateral schematic section
• FIGS. 6a and 6b show a third alternative embodiment of the present invention in a lateral schematic section
• FIGS. 7a and 7b show a fourth alternative embodiment of the present invention in a lateral schematic section
• FIG. 9 shows a sixth alternative embodiment of the present invention.
• FIGS 1a and 1b schematically illustrate the general principle of the invention.
• Two walls 1a and 1b of a nozzle define a suction channel 2 opening into a flow channel 4 open towards the surface to be cleaned.
• the direction of movement F1 can be considered as a usual movement of the squeegee forward, the direction F2 as a movement of the squeegee backwards.
• the surface to be cleaned is of the carpet type and comprises bristles 10 encrusted with dust 12. More particularly according to the invention, a generally vertical plate 6 of similar length to that of the channel 4 is rotatably mounted about a horizontal axis 8 close to the front internal face. This plate 6 forms a lower scraper blade 9b below the axis 8 and a shutter 9a above this same axis.
• the lower edge of the scraper blade in contact with the pile of the carpet can be bevelled if a strong whip effect is desired on the pile, or rounded to protect the floor to be cleaned as much as possible.
• the upper edge of the flap 9a can be completed with a flexible linear seal.
• the height of the blade can be adjusted to such height according to commercial networks and / or when using a vacuum cleaner fitted with such a nozzle, so that the blade reaches the top of the bristles (touch) or more in depth, for example halfway up the pile, choice also depending on the type of carpet.
• the flap 9a is pressed against the front inner face of the channel 4 when the nozzle is pushed forward according to arrow F1.
• the pile of the carpet is then agitated by the scraper blade which favors the extraction of dust behind this scraper blade.
• This dust is immediately collected by suction. If now the squeegee is pulled back, distorting the relationship between the scraper blade and the flow channel, then the tilting of the plate 6 brings the shutter 9a in the closed position and the scraper blade is found slightly noted.
• Figures 2a, 2b and 3 show, very schematically, the general principle of the invention in the case of a large flow channel.
• Two internal walls 1a and 1b of a nozzle 20 define a suction channel 2 opening into a flow channel 4a, 4b, open towards the surface to be cleaned and preferably extending in a direction perpendicular to the plane of the figure.
• channel 4a is called “front” channel
• channel 4b is called "rear” channel, taking into account the orientation of the squeegee according to FIG. 3.
• the squeegee 20, as shown in FIG. 3, can be provided with another suction channel 18.
• it can have one or more wheels 14 in order to facilitate its movement.
• a plate 6 is arranged in the squeegee and extends at least partially in the flow channel along its largest dimension, but can also extend in the suction channel. This plate is mounted on an axis 8 oriented parallel to the general direction of the plate.
• the axis 8 On either side of the axis 8 extend two arms 9a and 9b respectively defining the shutter and the scraper blade, and the ends of which define the edges of the plate 6.
• the end of the shutter 9a allows to condemn the part of the suction channel located above the front channel 4a or the rear channel 4b depending on the orientation of the plate 6.
• the arm 9a can have a complex shape in the form of multiple arms, giving the blade a Y or T shape, for example.
• the plate 6 can be thick or thin depending on the type of stress desired, and have a wider shape at its end capable of being in contact with the ground than at its axis of rotation.
• the other arm 9b is generally shorter than the arm 9a and is largely located in the flow channel. This arm, in normal position of the squeegee, comes out of the squeegee, so that the edge of the blade, defined by this arm, can be in contact with carpet-like surfaces, even when the blade is pivoted around the 'axis 8.
• the plate 6 pivots around the axis 8, by friction on the pile 10 of the carpet. Therefore, the arm 9a can bear against one of the walls 1a or 1b, or against a stop relative to one of the walls. The plate 6 can therefore only pivot by a limited angle on either side of its vertical position, achieving a closure of the adjoining channel.
• the front channel 4a is closed.
• the rear channel 4b is closed.
• this arm 9a can be bevelled and / or covered with a foam, a joint or a felt in order to reinforce this obturation. It is also possible to overmold a soft plastic part at the end of this arm or of these arms when the arm 9a is made up of two parts.
• This effect is particularly sought after on carpet and this arm must therefore sink into the carpet in order to urge the hairs constituting it.
• the arm 9b does not touch the ground in order to find a more conventional aspiration, without specific activity of the nozzle.
• the rotation of the plate around its pivot point can be symmetrical or asymmetrical in order to differentiate two directions of movement of the nozzle.
• This asymmetry can be achieved by judicious positioning or sizing of the stops and / or off-centering of the plate in the suction and / or flow channel.
• a first improvement consists in increasing the seal and preventing the passage of air under the opposite edge of the nozzle, either by increasing the contact surface, or by placing sealing flaps 16a, 16b, on either side. of the plate, as shown in Figure 3, and, more generally, at the front and / or rear of the suction channel, or flow when it exists.
• FIGS 4a and 4b show a first alternative embodiment.
• two plates 22a and 22b are used, each plate individually taking up the previously mentioned functions and effects. So the plate 22a is located in a channel 23a, and plate 22b in a channel 23b.
• Each plate is pivotally mounted around an axis 28a, 28b. Under the effect of a displacement of the nozzle, the blades, in contact with the bristles 10, pivot, closing the front or the rear of the channel, according to the direction F1 or F2 of displacement of the nozzle, by means of the guide pieces 26a and 26b, of the separation piece 27 and of the longitudinal walls 25a, 25b of the nozzle.
• Stops can be arranged at the level of several guide parts 25a, 25b, 26a, 26b, 27 in order to limit the rotation of the plates.
• stops 29a and 29b have been provided by an appropriate form of the parts 25a and 25b.
• flaps 30a and 30b can be arranged at the front and rear edges of the squeegee.
• FIGS. 5a and 5b two plates are used but only one suction channel is activated.
• the front channel of channel 33a is constantly closed, just like the rear channel of channel 33b.
• the channel 33b is inactive and the channel 33a active, the situation being reversed when the nozzle is moved along F2 (rearward).
• the guide parts are simplified.
• the plates 32a, 32b, pivotally mounted around their axis 38a, 38b, are mainly guided by the internal part of the edges of the squeegee, advantageously having a profile adapted to the shape of the blade, so as not to leave only a slight guide clearance when the plate rotates.
• the plate has a base at the shutter, the profile of which is in an arc.
• the guide surfaces of the edges 35a and 35b and of the separation piece 37 separating the two blades are also in an arc of a circle.
• Between the part 37 and the flanges 35a and 35b is provided a space respectively defining the suction channels 33a and 33b. These channels open into an evacuation channel 34.
• a first improvement can be made by substantially different values of the contact surfaces with the surface to be cleaned of the two parts of the flow and / or suction channel, located on either side of the scraper blade. This structure makes it possible to have a suction force on the channel 33a different from that on the channel 33b.
• a second improvement consists in modifying the height between the end of the blade and the ground, which one could call ground clearance, by analogy with the automotive field. By creating a more or less significant air leak at the level of the air space, the suction force is also modified.
• FIGS. 5a and 5b One of the means making it possible to achieve this difference in ground clearance between the two scraper blades, and presented in FIGS. 5a and 5b consists in rendering asymmetrical the stops of the shutter shutters of the two plates, and this for each plate, this asymmetry being reversed from one plate to another.
• FIG. 5a during the displacement of the nozzle along F2, the "active" blade for scraping the plate 32b pivots by an angle ⁇ , while the blade of the plate 32a pivots by an angle ⁇ 'during a displacement of the squeegee according to F1.
• ⁇ ' more important than ⁇ or the reverse, depending on the configuration of the squeegee, in order to obtain this asymmetry of force according to the direction of movement of the squeegee.
• the angle of rotation ⁇ of the "inactive" blade for scraping the plate 32a when the squeegee is moved in the direction F2, can be greater than ⁇ , causing a vertical rise in the end of the blade of the plate 32a more important than the vertical ascent of the end of the blade of the plate 32b.
• the ground clearance of the blade of the plate 32a is therefore greater.
• the blade of the plate 32a only brushes against the bristles 10, so that it does not cause any additional force to be deployed to move the squeegee.
• the dust 12 is sucked into the channel 33a or into the channel 33b.
• a main plate 46 mounted movable in rotation about a pivot axis 48 comprises air injection channels 47a, 47b. These channels are open towards the surface to be treated.
• channels 47a and 47b are determined, on the one hand by an internal structure 40 of the nozzle, and on the other hand using secondary blades 42a and 42b associated with the main plate 46 .
• These secondary blades are arranged on either side of the main plate, each providing an injection conduit on either side of the main plate.
• these channels are connected to the outside of the nozzle.
• the nozzle has air inlet holes for injecting air taken outside of the nozzle in the channels 47a and 47b, then in the surface to be cleaned.
• the injection pipe is connected to a container containing treatment products, either in its own right or in association with an outside air inlet, as previously described.
• the treating products used can be in liquid, pulverulent form, or else in the form of aerosols, ... It is then possible to combine a mechanical action of supplying air and a physicochemical action by the product treating the carpet.
• the profile of the secondary blades is studied, in association or not with complementary parts, so that the obturation of one of the front or rear channels, due to the rotation of the plate 46, causes, at the same time , closing the air inlet channel opposite the closed suction channel.
• the angle of rotation of the blade can be identical depending on the direction of movement of the nozzle, or have a different value, as presented in FIGS. 6a and 6b, where the angle ⁇ is of absolute value different from the angle ⁇ , leading to a ground clearance of the blade different according to the direction of movement of the nozzle.
• the effectiveness of the nozzle having such an embodiment can be increased by the presence of sealing flaps 44a and 44b.
• blower means which may include a specific heating circuit. It is interesting in this case to collect air at the engine outlet. This air allows, for example, to dry a carpet.
• the shape of the duct can be adapted so that the air comes out in the form of an air space, as described in application FR 98 10227.
• the internal structure 40 as well as the internal shape of the edges 45a and 45b of the squeegee allow the guide 46 and the blades 42a, 42b to be guided and also constitute stops. These stops can be arranged asymmetrically with respect to the axis of rotation, thus constituting another means for varying the ground clearance of the scraper blade, as already mentioned in the present application.
• FIGS 7a and 7b A variant of this device is presented in Figures 7a and 7b.
• This variant incorporates the essential elements of Figures 6a and 6b.
• the plate 56 is not arranged symmetrically with respect to the axis of rotation 58. This asymmetry causes a different rotation of the plate and of the blades according to the movement given to the nozzle.
• the scraper blade of the plate 56 sinks more into the carpet when the nozzle is moved in the direction F1 than when the nozzle is moved in the direction F2.
• This embodiment also has one of the abutment possibilities associated with the plate 56, constituted by an arm 57 coming from the internal structure 50 for guiding the nozzle.
• Schematic figure 8 shows another alternative embodiment of the asymmetry of suction according to the direction of movement of the nozzle.
• FIGS. 2a, 2b and 3 The general configuration is that of FIGS. 2a, 2b and 3, with modification of the wall 1a, referenced in this figure 81a. Indeed, this wall is generally curved towards the outside of the squeegee, unlike the wall 81b, which looks more rectilinear.
• a nozzle 80 having an evacuation channel 84 flared in the direction of the surface to be treated comprises a plate 86 pivotally mounted about an axis 88, and separating the suction channel into two channels 83a and 83b .
• the wall 81a further comprises at least one opening 92 connecting the channel 83a to the outside. This feature makes it possible, during displacement of the nozzle according to F1, to inject air at the nozzle via these openings 92.
• a sealing bead 90 coordinated with the plate, can be arranged towards the lower end of the wall 81a.
• FIG. 9 shows an alternative embodiment, arranged, by way of example, on a nozzle 60 of triangular shape, having a front suction mouth 70, extended by two lateral flow channels 71 and 72.
• a channel located at the rear of the nozzle is composed of a front channel 63a and a rear channel 63b, separated by a plate 66, pivotally mounted around an axis 68, incorporating one of the variant embodiments of the present invention.
• the first variant, presented in FIGS. 2a, 2b and 3 has been repeated, where the references 65a and 65b represent the internal walls of the squeegee enabling the channels 63a, 63b, to be closed. identically to walls 1a and 1b of Figures 2a, 2b and 3.
• a mechanical support 67 of the plate 66 is arranged in the rear channel in order to guide and reinforce the plate 66 in its rotation.
• an air injection circuit or treatment product is brought inside the plate 66, for example by obviously partial of the plate, and opens, in the form of slots or holes 62 regularly distributed, at the end of the part of the scraper blade likely to be in contact with the surface to be cleaned.
• This feature allows a jet effect where the air passing through the plate, either between two walls or through the holes 62, takes a directed speed parallel to the axis of the holes. The air thus penetrates deeper into the heart of the carpet and can reach the bottom of the carpet, which is a difficult place to access and therefore difficult to clean.
• the air flow is oriented in a direction established by the position of the blade which makes it possible to direct the air inlet in a less restrictive manner and which can go up to the vertical.
• the choice of shape (single or multiple air inlet, several holes, etc.) and the passage section of this air inlet make it possible to channel aeraulic energy acting directly at the end of the plate, at the level of the scraper blade, but which can also act in the bottom of the carpet to remove dust.
• the plate 66 is pierced with holes 61 of axis substantially perpendicular to said plate, said holes being preferably located in the lower part of the plate 66, at the level of the scraper blade, in order to create a lateral suction of dust allowing to recover air and dust possibly propelled on the side of the blade where the suction channel is closed.
• the end of the scraper blade has a non-planar profile, either by making a bevel, or by cutting slots, or by addition of bristles or tips.
• a non-planar profile either by making a bevel, or by cutting slots, or by addition of bristles or tips.
• the present device can be associated with a suction of the "large waste” type, such as for example the opening 70 presented in FIG. 9, or the opening 11 in FIG. 3, which makes it possible to vacuum. waste that is not between the pile of the carpet, but rather on the top of the carpet and which would not easily pass under the scraper blade.
• a suction of the "large waste” type such as for example the opening 70 presented in FIG. 9, or the opening 11 in FIG. 3, which makes it possible to vacuum. waste that is not between the pile of the carpet, but rather on the top of the carpet and which would not easily pass under the scraper blade.
• the squeegee then has, in addition to the device presented, a suction opening open towards the surface to be cleaned and connected aeraulically to a suction channel, said suction opening being free of a doctor blade.
• the vacuum cleaner nozzle has a mechanism for adjusting the height of the blade in the flow conduit. This possibility makes it possible to specify the blade for the different types of carpet encountered, or even in the factory, to specify the squeegees according to the recipient countries. Furthermore, this convenience also makes it possible to compensate for the wear of the blade as well as to be able to mount plates of different lengths while keeping the same nozzle.
• the plate is mounted fixed, the sealing means are produced by parts movable in translation, such as flaps, the movement of these parts being controlled mechanically or electrically depending on whether the nozzle moves towards forward or backward.
• a command can be used in an autonomous vacuum cleaner of robot type where such information and such control of the advance of the robot forwards or backwards is available.
• the plate may include a specific air inlet circuit as previously mentioned.

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• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Nozzles For Electric Vacuum Cleaners (AREA)
• Absorbent Articles And Supports Therefor (AREA)
• Filters For Electric Vacuum Cleaners (AREA)

Priority Applications (6)

Applications Claiming Priority (2)

Publications (1)

Family

ID=9545168

Family Applications (1)

Country Status (10)

Cited By (6)

Families Citing this family (31)

Citations (6)

• 1999
  • 1999-04-29 FR FR9905618A patent/FR2792817B1/fr not_active Expired - Fee Related
• 2000
  • 2000-04-18 AT AT00920833T patent/ATE235182T1/de not_active IP Right Cessation
  • 2000-04-18 DE DE60001818T patent/DE60001818T2/de not_active Expired - Lifetime
  • 2000-04-18 AU AU41259/00A patent/AU4125900A/en not_active Abandoned
  • 2000-04-18 TR TR2001/03089T patent/TR200103089T2/tr unknown
  • 2000-04-18 EP EP00920833A patent/EP1173085B1/fr not_active Expired - Lifetime
  • 2000-04-18 CN CN00806898A patent/CN1351477A/zh active Pending
  • 2000-04-18 WO PCT/FR2000/001009 patent/WO2000065979A1/fr not_active Application Discontinuation
  • 2000-04-18 KR KR1020017013867A patent/KR20020021092A/ko not_active Application Discontinuation
• 2002
  • 2002-09-26 HK HK02107081.3A patent/HK1045448A1/zh unknown

Patent Citations (6)

Non-Patent Citations (2)

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