SU1414310A3 - Coffee filter - Google Patents

Abstract

The invention relates to a filter intended to provide liquid coffee or similar filtrate and is made compact when folded. The circuit of the invention is an increase in usability to the stability of the filter when it is installed on a vessel of any size. The filter contains a support plate 4, having an intermediate section, in the central part of which there is a hole 7 for filling hot water and a pair of supporting legs 10, a bag 5 of coffee filter paper, which is fastened with its open end on the inner surface of the intermediate section. In the supporting legs 10 are made slots 21, having a U-shape with the formation of the outer gripping element in the form of strips 22 and the inner gripping elements in the form of a tongue 23. 1 Cp. f-ly, 17 ill. WITH

Description

3

40

four

YU

(

FIG. /

This invention relates to a filter designed to provide liquid coffee or similar filtrate, compact compact in a compact form.

The aim of the invention is to improve the usability and stability of the filter when installing it on a vessel: any size.

Fig. 1 shows the packaging for coffee in which the filter assembly is used; figure 2 - section aa in figure 1; on fig.Z - filter in the semi-complicated position; figure 4 - scheme of the proposed filter; on. fig.Z - the same, its separate parts; Fig, 6 - part of the filter unit filter capacity; 7-9 - various types of filter nodes; 10-12 show the proposed types of filters; FIG. 13 one of the filters, a plan view; on Fig - the same in the process; on Fig - filter, limiting the coffee powder in the filter container; on Fig - section bb in Fig; Fig. 17 is a filter showing the method of sealing a filter container.

Figures 1-5 show the filter assembly used in the packaging of coffee for storage as well as for filtering. The coffee packaging is made of wrapper 1 and filter 2, which is hermetically wrapped in wrapper 1 together with loaded Kofe 3 powder.

Filter 2 consists of a support plate 4, which is a rectangle cut from a sheet, it has the desired stiffness, for example thick sheet paper or plastic. A filter paper bag 5 is attached to the inner surface of the support plate 4 by gluing. The support plate 4 (Fig. 4) has in its intermediate part a circular removable cover, which is defined by intermittent serifs OR slits 6. The krppka is integral with the supporting plate 4 in non-cut portions. When removed, the cover will leave a round hole 7, which serves to fill the hot water. On each side of the lid, many parallel folding lines are formed symmetrically with respect to the same on the other. 1st side. The folding lines on opposite sides of the cover 8 define the opposite edges of the support plate 4 in conjunction with the respective ends of the latter. Pairs of symmetrical shape of the supporting legs 10 are formed in these extreme parts of the support plate 4, respectively.

The support plate 4 with the lid 8 and a pair of paws 10 are folded along two longitudinal central lines 11. The cadaver support paw 10 is formed by slots 12 of T-shape, located symmetrically one to another relative to the center line 11, The slits 12 are designed for special functions, when the filter is placed on a cup or similar vessel. It should be noted that instead of the T-shaped slot 12, there may be any other shape that is connected to the edge of the paw 10 through a relatively small width and has a relatively wide inner edge, for example an L-shaped shape, a well shape or a trapezoid shape.

The bag 5 serves to filter and is in the form of a flat bag for storing the coffee powder 3 therein. Package 5 (FIG. 6) is made by cutting a rectangular piece from filter paper, folding the cut piece along its central axis of line 13 and center lines 14 and sticking in place of opposite side edges 15. Thus, package 5 is open with its upper part along intermediate axial lines 14. The flaps 16, extended outside the individual intermediate axial lines 14, are located on the side of the support plate 4 and are individually glued to it along the edges. This completes the general assembly of filter pack 5 with support pad 4.

In the normal position, the bag 5 is attached to the underside of the support plate 4, leaving the hole closed (Fig. 5) by means of opposite edges of the hole held in parallel contact. The size of this hole in the longitudinal direction of the plate 4 is chosen to be larger than the space between the lines 9 of the support plate 4. The front edges of the flaps 16 are spaced apart from each other at a distance that is larger than the diameter of the crack plate 8 of the support plate 4. Package 5, thus calibrated, is attached below the support plate to 4 tons The axial lines 14, defining the edges of the hole, coincide with the longitudinal central lines 11 of the support plate 4 when the open end of the coolant is located under the trimmer 8 along the longitudinal center line of the insert 4. When the flaps 1.6 are glued to the support plate 4 The hole in the coolant is closed with a cap 8 and the adjacent parts of the support plate 4.

When using coffee packaging, the filter bag 5 is filled with a defined amount of coffee powder 3. Attaching the filter cups to the base plate 4 limits the coffee powder 3 in the bag, / The filter is designed to wrap coffee powder wrapper 3 limited to 5 filter. The filter 2 is wrapped in a wrapper 1 so that the package 5 of the filter 2 fits with the powder inside the support plate 34, folded in half. Thus, the internal cavity. the wrappers 1 are pumped out or filled with an inert gas, after which the filter 2 is sealed to prevent air from entering.

Although the filter assembly is intended to be wrapped with coffee powder for storage, it is desirable that the coffee powder be placed in: a bag 5 of the filter at the same time as it is used.

Figures 7-9 illustrate various methods of using coffee packaging. The packaging is opened and the filter 2 is removed. The support plate 4 of the filter 2 is flat (Figure 4), on which parts are cut by the slits 6 or. They are clipped to remove the cover 8 and thereby open the shed of the packet 5 of the filter 2. Then the support legs 10 on the support plate 4 are folded down the perpedulum Rno to the base of the support plate 4, bend them along a pair of lines 9 bend. Under these conditions, the support plate 4 is placed on the edge of the cup 17 along the slit 12 in the legs 10, then hot water is poured into the filter 2.

The coffee packaging (Figures 7-9) can be installed on the cups 17 of different diameters due to the fact that there are concentric 9 fold lines on the support plate 4, forming

five

0

five

0

five

0

five

0

five

intermediate section. The paws 10 are folded over a pair of kink lines 9 in order to be installed on a cup with a relatively small diameter, while in FIG. 8 they are bent along the kink lines 9 to adapt to a cup with a relatively large diameter. Fig. 9 shows the case where each paw 10 bends over the kink line 9, and then slightly kinks along the intermediate and outer kink lines 9. This is necessary in order to adapt the configuration of the filter 2 to the cup edges protruding upward, since the filter can be installed safely on a cup of any diameter so that the kink lines 9 correspond to the diameter of the cup. Thus, the transformed support plate is securely mounted on the edge of the cup 17 by means of slots 12 in the legs 10. Located inside the cup, the projections 18 of the legs 10, which are internal gripping elements, are inserted into the cup 17, while the external projections 19, which are external the gripping elements are placed outside the cup 17, holding onto the edges of the cup on both sides. Since the kink lines 9 are arcuate, the bent legs 10 perpendicularly provide sufficient rigidity to hold the entire assembly. While the opposite ends of the filter pack 5 are glued to the support plate 4 on top of the support legs 10, this change in the support plate 4 causes the opposite ends of the pack 5 to come closer so that the upper part of the filter opens automatically, making it easy to pour hot water

Thus, filter 2 can be easily transformed and installed on top of the cup by simple manipulation, and liquid coffee can be obtained automatically by pouring hot water into the cup through the filter. This allows for easy handling of the filter 2. The reformed filter 2 is mounted on the cup so that the bag 5 and the inside of the cup can be seen through the gap between the support plate 10 so as to control the extraction state.

10-12 are other examples of gripping portions that. arranged so that they are close to opposite ends of the filter assembly. In Fig. 10, each support-: the paw 10 of the support plate is formed by means of a U-shaped vy-I ez or slits 21, which are located close to the edges of the support I paws 10 symmetrically relative to each other and center line 11 of support plate I 4. Each slot is 21 ta-; which form to determine the outer I strip 22 and the tabs 23, which are: the outer and inner gripping elements. Each slot 21 has a symmetrical configuration with respect to the center line 20 on the base plate. In order to reinforce the filter on the cup, which is better in a part of the cup, the support legs 10 are manually compressed inwards to force the tongues 23 into the inside and then the shape is shaped like that below.

compared with the three-point support shown in FIG. It can be seen that such small lectures are also suitable for configuration

that the opposite ends 24 are cut out shown in FIG. 10 or FIG. 11.

40

The pins 21 are bent in order to install the filter on the edge of the cup. Such a simple procedure is sufficient to firmly fix the inner and outer elements on the cup.

The slit 21 of the i-shaped form (Fig. 11) runs perpendicularly to the longitudinal center line 11 of the support plate 4 in the vicinity of each edge of the latter, the internal gripping element is defined. Inner: element 35 is cut in the middle part to have a pair of protrusions 25 directed outward from the end 26 of the slot 21. The protrusions 25 on each back support foot are symmetrical to each other and relative to the longitudinal center line 11 of the support plate 4 and opposite to the corresponding outer strips 22, which are also defined by the slot 21. In accordance with such a device, the filter is attached to the cup at track points in each support foot, the two protrusions 25 engage with the inside surface of the cup and one on the strip 22, which collapses against the outside surface, 50 to cover the curvature of the cup. This keeps the filter on the cup in a more stable manner. The hooking of the filter with the cup is provided by this design rigidly for any diameter. 55

Undercuts 27 (Fig.12) are directed towards one another - the outer side of the protrusion edges of 25 each, om

Each support paw. tO (FIG. 1 14) is provided with an inflection line 26 parallel to the edge of the strip 22. It is also equipped with a slot 37 of the U-shaped 2Q form, which is connected to opposite ends of the line 36 and the slit 37 forms an internal catching tongue 38, which can be raised relative to the base of the paw.

The distance between the line 36 and the opposite part of the strip 37 is chosen so that the distance between the bend line 36 and the edge of the strip 2 is greater than this distance allows the blunt end of the gripping cord 38 to extend outwards beyond the edge of the shelf 22 when The bend 36 will be bent over the bend toward the edge of the band 22. The tabs 38, which are bent 180 ° outwards along the bend lines 36, allow the cup edge to be compressed for their return forces and thereby shake the filter steadily.

The tongues 38 exit from the windows of additional forms in the respective support legs 10 when they are bent to the supporting positions. Consequently, it is possible to follow the level change in the cup 17 much more clearly through these windows.

The filter is equipped with flaps 16 (Fig.15 and 16), which are directed

an internal gripping element to define small flexible parts 28. These undercuts 27 make the projections 25 Hot of the internal gripping element flexible to allow installation on cups even with relatively small diameters.

In addition, each outer strip 22 (Fig. 12) includes a pair of small protrusions 29, which protrude from opposite ends of the strip so as to face the tongue 23 of the inner pick-up element. Therefore, the inner and outer gripping elements on each support paw 10 support the filter at four points.

compared with the three-point support shown in FIG. Obviously, such small protrusions are also suitable for configurations.

shown in figure 10 or figure 11.

Each support paw. tO (FIGS. 13-14) is provided with an inflection line 26 parallel to the edge of the strip 22, It is also provided with a U-shaped slot 37, which is connected to opposite ends of the inflection line 36. The slot 37 forms an inner grasping tongue 38, which can be raised relative to the base of the paw.

The distance between the bend line 36 and the opposite part of the pro-g. Rezi 37 is chosen to be greater than the distance between the bend line 36 and the edge of the strip 22. This distance allows the free end of the pick-up tongue 38 to extend outwards beyond the edge of the strip. 22, when it is bent along the bend line 36 towards the edges of the strip 22. The tongues 38, which are bent 180 ° outwards along the bend lines 36, allow to compress on the edge of the cup due to their return forces and thereby keep the filter stable.

The tongues 38 exit the windows of additional shapes in the respective support legs 10 when they are bent to the supporting positions. Therefore, it is possible to follow the level change in the cup 17 much more clearly through these windows.

The filter is equipped with flaps 16 (Fig.15 and 16), which are directed

from each other outward from the opposite edges 39 of the open part of the filter bag 2. The filter pack 2 is attached to the support plate 4. by gluing the shutters 16 to the bottom of the support plate 4 along the perpendicular edges 15. At the edges 39, the filter bag 2 has internal surfaces joined together by gluing, squeezing or thermal bonding in order to obtain a certain amount of coffee powder.

Hole 7 (FIGS. 1-9) for hot water inlet is covered with a krppka. The opposite edges 39 of the filter bag 5 must be glued together if the hole 8 has no cover.

When the wrapper containing the filter plate is made airtight, it offers an option that prevents leakage of the contents during the BCC15.

It is desirable that the connection of the opposite ends of the pool is sufficiently weak, so that it is easy to separate: pour with your fingers without the danger of damaging the filter paper.

The lid element (Fig. 17) for restricting the opening of the filter clumps is replaced by an elongated strip to. The torus is glued to the upper surface of the flaps 40 and 41 along the edges of the cool hole. In addition, the element 42 may include a portion for the thumb 43 at its end that protrudes from the opening 7. The larger part of the thumb 43 will facilitate the separation of the element 42.

When the filter is assembled in this way, it can be transported in a flat position with the filter cup inside the doubly folded support plate. When using the support plate ras70

and its supporting arms are laid., the dust is fixed to the upper edge of a cup of coffee or a similar vessel.

Formula and 3. About b e e e and k

1, Coffee filter, containing a support on the plate with an intermediate section, in the central part of which there is a hole for the mountains. whose water, a pair of supporting legs placed on the opposite sides of the interstitial section, and a packet of filter paper with folds-otbnami for ko4} e ;, which is attached with an open end on the inner surface of the intermediate section, and the support plate has a fold line, the transition lateral between the intermediate section and the opposite end of the plate on each side of the hole, and the support legs have slots forming gripping elements for interacting with the edge of the vessel, characterized in that povsh e1sh usability and stability of the filter during installation

Its vessel of any size, slot, made in the supporting nanaxj has an i-shape with the formation of a load-on gripping element in the form of a strip and an internal gripping element in the form of a tongue.

2. Filter POP.1, distinguished by HZ and also in that it has an undercut, passage w; s in the lateral direction at its base to give the tongue flexibility.

Priority points: 07.03.81 on Clause 1; 12.08,81 under item 2.

B

but

1

12

1g

6

Si7)

Aa

FIG. tf

t5

6

Iff

to

12

7

96 20 8 5 FIG. U

Fi.Z

24

YU

22

3d

22

YU

FIG. f

Yu

9

Phie. f5

Compiled by L. Anikin Editor U, Sereda Tekhred L. Oliynyk Proofreader M. Sharoga

Order 3795/58

Circulation 481

VIIIPI State Committee of the USSR

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., d. A / 5

P

Fi9.1 $

Subscription

Claims (2)

Claim 1. Filter for coffee, containing a base plate with an intermediate section, in the Central part of which is made a hole for hot-fill. whose water, a pair of support legs located on opposite sides of the intermediate * section, and - a filter paper bag with folds-folds for coffee, which is fastened with an open end on the inner surface of the intermediate section, and the base plate has a fold line that goes into the side sides between the intermediate section and the opposite end of the plate on each side of the hole, and in the support legs are made slots forming gripping elements for interaction with the edge of the vessel, characterized in that, for the purpose improve usability and the stability of the filter when it is installed on a vessel of any size, a slot made in the supporting legs, has a U-shaped form with naked ruzhnogo gripping element in the form of strips and the inner gripping member in vide'yazychka. 2. Filter pop. 1, characterized by the fact that to give the tongue flexibility it has a cut, passing in the lateral direction at When the filter is assembled in this way, it can be carried in a flat polo40 of its base. When holding the filter bag inside a doubly folded base plate. When using the base plate, the priority is as follows: 03/07/81 according to claim 1; 08/12/81 according to claim 2. A FIG. 1 11 _Α ~ Α FIG. 2 16 19 FIG. 4 FIG. 6 FIG. 8 10 9 6 4 20 S 6 JO FIG. 10 37 ⁴ .12 37 38 FIG. thirteen FIG. 14 FIG. 16 editor Y. Sereda