DE8328915U1 - Freshness-keeping device - Google Patents

Description

3/13 (83416) "" ⁴ ~

TERGAUaPOHL

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HEFNEPr.Γ-L. ; ι. I, Γ, ΓΙ ". 0347

8SOO NUREMBERG 11

Georg Wolfel, 8540 Schwabach Fresh keeping device

The innovation relates to a freshness-keeping device for perishable food with the features of Preamble of claim 1. It has long been known to store such foods in so-called KUhI cabinet containers to store, which essentially consists of a container base and one on this largely consist airtight attachable cover part. Around

a tight and secure fit of the cover 20

to ensure on the lower part is the one in the Usually made of soft plastic material with a cover that is open to the underside of the cover Provided edge groove, which can be placed with a force fit on the upper edge of the lower part of the container. It is also possible to use such containers to create a slight negative pressure in the container by that after placing the lid on the lower part of the container and the lid are pressed together and slightly deformed inwards

will.
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It is also known to weld easily perishable foods under vacuum in plastic films. Such freshly packaged foods are opposite open food is much more durable, but packaging of this kind is necessary

diger packaging machines that are inexpensive in the shark stop area cannot be used.

The innovation is based on the task of a freshness-keeping device for creating perishable foods that are versatile and arbitrary in the household can often be used and can be evacuated in a simple manner, the vacuum being a pressure of about 1/10 Torr is achievable. This is ensured by the fact that first the cover and the lower part are made of non-warping are dimensionally stable material, for which steel, ceramic, glass or hard plastic are suitable. Cover and lower part are placed on top of one another with a seal between them and are removed after the evacuation process held together by the vacuum in the container interior, so that a press fit or the like. is not necessary. The pump is detachable from the container, which becomes more important when it is advantageous is designed as an electric pump and the container is cleaned in a dishwasher, for example shall be. Rowing has an advantageous effect that the container base - consisting of an optical addressable material, optionally provided with a decoration - without further ado after removal from the The refrigerator can be placed directly on the table, for example with the usual plastic boxes looks ugly.

Claim 2 takes into account the fact that food is to be stored in the container and therefore From time to time a hygienically perfect cleaning of the container is necessary. To this Purposes, the sensitive valve can be removed from the cover and cleaned separately if necessary will.

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-δι. By claim 3 valve or act on it arranged pump opening does not have a detrimental effect on the stackability of the device, since it is, as it were, in the cover plane are arranged sunk. By claim 5 is a particularly stable stackability reached several containers standing on top of each other, claim 6 allows easy unscrewing of the vacuum check valve heard the help of tools. By claim 7 can on a separate ventilation device of the container can be dispensed with, as provided by the screw thread of the vacuum valve Notched groove when the valve seat is loosened in the lid, air can flow into the container and ventilate it.

Claim 8 ensures good use of space, for example a refrigerator or freezer through the appropriately rectangular container, by claim 9 it is avoided that the seal between the valve and cover during the cleaning process, for example lost in a dishwasher.

According to claim 10, the evacuated container can on the one hand be kept cool when traveling over long periods of time on the other hand, the shell made of insulation material ensures excellent breakage protection, if the container is made of glass.

The innovation is explained in more detail using an exemplary embodiment in the figures of the drawing. Show it:

1 shows a perspective view of a freshness-keeping device,
Fig. 2 is a section along the central longitudinal axis of the

Vacuum check valve,
3g Fig. 3 shows a vertical section through the cover.

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The freshness-keeping device 1 consists essentially of a container lower part 2 and one on top of this vacuum-tight cover 3, which is provided in its κ edge area 4 with a seal 5, which when the lid is in place, the upper edge 6 of the lower container part 2 is applied. In the cover surface 7 is a vacuum check valve 8 is arranged, to which a vacuum pumpQ pe 9 can be attached. The vacuum check valve 8 is fastened in a thread 10 with a screw seat and arranged sunk, as it were, through a U-shaped cross section of the cover 3. The Dicntung 5 supporting edge area 4 is namely opposite

, _{c of} the lid center 11 pulled up and the vacuum back Io

check valve 8 arranged in the area of the lid center. The upper edge 12 of the vacuum check valve 8 is lower than the surface 13 of the edge region 4, which has a circumferential support surface for on the container

ter forms additional containers that can be stacked. The upper 20

surface 13 is surrounded by a bead-like edge 14, which allows a displacement of the stacked containers avoids.

The vacuum check valve 8 has a grip edge that projects beyond the diameter of the thread 10 15 provided, which is separated from the contact sealing surface 17 by an undercut 16 and is therefore easy to use is.

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The external thread 18 of the vacuum check valve 8 is

provided with a notched groove 20 extending in the axial direction 19, which when the rotary valve seat is loosened a Permits ventilation of the interior of the container.

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In the surface 21 of the vacuum check valve 8 is

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e.a funnel-shaped pump opening 22 is provided into which the pump nozzle 23 of the preferably electrically operated vacuum pump 9 can be used and automatically sucks when switched on.

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3/13 (83416) Georg WoIfel

Reference number

1 freshness device

2 lower part of the container

3 lids

4 border area

5 seal

6 top edge

7 lid surface

8 vacuum check valve

9 vacuum pump

10 threads

11 Middle of the lid

*.?. upper edge v.

13 surface

14 edge

15 Edge of the handle

16 undercut

17 bearing surface

18 external thread

19 axial direction

20 notched groove

21 surface

22 pump opening

23 pump nozzle

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Claims (9)

1V 3/13 (83416) -1- TERGAU & POHL PATEN TAf-iW ^ LTE HEFNERSPL. 3. PCSTF. S347 S5OO NUREMBERG 11 Georg WoIfel, 8540 Schwabach Claims 1. Fresh keeping device (1) for perishable food, consisting of a container base (2) and a cover (3) that can be placed on this vacuum-tight, characterized by the combination
following features: - Lid (3) and container base (2) are made of rigid, dimensionally stable material, preferably Made of steel, ceramic, glass or hard plastic, - The lid (3) lies on the lower part of the container (2) by means of a seal (5) in its edge area (4) vacuum-tight and forms with this a unit that holds its shape together under vacuum, - A vacuum check valve (8) is arranged in the cover surface (7), which has a pump opening (22) for one that can be attached to it for evacuation Vacuum pump (9) carries. 2. Device according to claim 1, characterized, that the vacuum check valve (8) with screw seat is held in a thread (10) of the cover (3). I «· ι -2- 3. Device according to claim 1 or 2, characterized, that the cover (3) has an approximately U-shaped such Cross-section has that its edge area (4) bearing the seal (5) opposite the center of the cover (11) pulled up and the vacuum check valve (8) arranged in the low-lying area of the lid center (11) is. 4. Device according to one of the preceding claims, characterized, that the upper edge (12) of the vacuum check valve (8) is deeper than the surface (13) of the hochgezopenen Edge area (4) of the cover (3) lies. 5. Device according to one of the preceding claims, characterized, that the raised edge area (4) forms a support surface for containers that can be stacked over it and is surrounded by a beaded edge (14). 6. Device according to one of the preceding claims, characterized, that the vacuum check valve (8) one over the Has diameter of the thread (10) of the lid radially protruding handle edge, the underside of which rests on the cover surface as a sealing surface. 7. Device according to one of the preceding claims, characterized in that that the external thread (18; of the vacuum check valve (8) is provided with a notched groove (20) extending in the axial direction (19). I t t I '(· «» · t * t ι <i | i it ■ « -3- 1 8. Device according to one of the preceding claims, characterized,
that the container is rectangular or square. 5 9. Device according to one of the preceding claims, characterized, that the seal (5) made of a softer material than the cover (3), preferably made of rubber and in the cover (3) is at least partially cast or injected 10 10. Device according to one of the preceding claims, characterized, 15 that the container, in particular the container base, is surrounded by a thermally insulating layer or in a separate thermal protective container can be used, the inner wall of which rests against the outer wall of the container (1).