DE9302901U1 - Container with lid, seal and valve that can be pumped out of air - Google Patents

Description

(1) Description

Container with lid, seal and valve,
which can be pumped out of air.

State of the art

In the conventional vacuuming process, plastic bags are used which are pumped out of air in a vacuuming device and then sealed after the evacuation process. The bags are then pressed again by the full

^q External pressure. If you vacuum seal pressure-sensitive foods such as vegetables, salad, rice, potato products, etc. using the conventional method, these foods will be crushed in the plastic bags by the external pressure.
In order to preserve such foods by vacuum, one must rely on conventional

^c revert to plain preserving jars. These often do not fit into the vacuum sealers and the volume and shape are unsuitable for most applications. These containers cannot be stacked securely and are usually difficult to open.
Utility models and patents already exist that respond to this need

2Q. Vessels manufactured according to these utility models and patents are usually so complicated to manufacture and handle that they have never been produced in large numbers. These vessels are very expensive and too impractical for everyday use.

problem

The invention specified in claim 1 is based on the problem of creating a vessel with a valve,

which can be used to vacuum seal sensitive foods and which fits into standard vacuum sealers,

which can also be vacuumed with a compressor or a hand pump if necessary,

which is stackable and can be opened quickly when needed, whose vacuum status can be seen at a glance from the valve, which can also be made from containers already on the market,
whose valve and sealing are based on the simplest principles, which is inexpensive to manufacture and sell.

invention

This problem is solved by the measures of claims 1-15

(2) Advantageous effect of the invention

The invention makes it possible to preserve food using vacuum. In contrast to the conventional method using plastic bags, even sensitive foods such as vegetables, rice, fruit, herbs, dough, pastries, etc. can be vacuum-sealed, as they are surrounded by a stable container and are not exposed to external pressure, which would crush them.
The invention also opens up the possibility of vacuuming the vessel directly with a compressor with a corresponding suction nozzle.

This option makes vacuuming cheaper, as you can do without the expensive special device that seals the plastic bags in a vacuum. To vacuum, you now only need the special containers, a vacuum compressor with a hose and suction nozzle or a conventional vacuum device into which the containers fit or a vacuum device with a connection for external suction to which the hose with suction nozzle can be connected.

The compressor can also be placed below the work surface, which saves valuable space.

The valves specially developed for these vacuum vessels enable constant monitoring of the vessel's internal pressure using a simple measuring system integrated into them, without the need for additional measuring devices.

Further development of the invention

Advantageous embodiments of the invention are specified in claims 2 to 15.

The further development according to claim 2 ensures that the lid rests precisely on the vessel.
The further development according to claim 3 enables the stable stacking of several containers on top of each other, which saves valuable space in refrigerators and cold stores.

The further development according to claim 4 also enables the vessels to be stacked stably.
The further development according to claim 5 allows for larger tolerances in the manufacture of the vessels, since an O-ring can adapt better to minor unevenness than, for example, a flat ring.

The further development according to claim 6 makes it possible to clamp the O-ring into the precisely shaped groove (7) and thus fix it precisely to the cover. Slipping of the sealing ring is no longer possible

The further development according to claim 7 enables the valve to be completely sunk into the lid, which simplifies the stacking of further vessels on the lid.
The further development according to claim 8 prevents the valve from being completely sucked out of the opening during the vacuuming process. The thickening (17) on the valve legs (16) act as lifting locks which hold the valve at a certain height so that the air can escape through the opening (8) but the valve remains in its position.

The flexibility of the valve legs means that the valve can be easily removed for cleaning or replacement by gently squeezing the valve legs together.

The further developments according to claims 9-11 enable the detection of the internal vessel pressure using the measuring systems integrated in the valve.

The further development according to claim 12 enables the valve to be manufactured from one piece, which makes an additional sealing ring unnecessary. This allows production costs to be reduced and the product to be offered at a lower price. In addition, this valve seals multiple times using two or more embedded sealing elements (22) and thus ensures greater safety.

The development according to claim 13 makes it possible to lift or pull out the valve using the ring attached to it, which makes it easier to open the vacuum-sealed vessel. The development according to claim 14 increases the vacuum stability and, thanks to its curves, also makes it easier to care for and clean the vessels.

The further development according to claim 15 facilitates the handling and cleaning of the vessel lid, since the seal is firmly and seamlessly connected to the lid.

Description of the invention

Fig.l Cross section of the vessel with the lid on Fig 2 Vessel lid on which another vessel is placed using the stacking edges

and grooves Fig.3 Enlarged section of the lid edge with clamped sealing ring

Fig.4 Valve with sealing ring pushed on Fig.5 Valve with cup-shaped cavity and opening in the middle,

on which a special plastic plate was fixed Fig.6 Valve with attached hollow cone, which is filled with a certain liquid

is filled at normal atmospheric pressure Fig.7 Valve as in Fig.6 in vacuum Fig.8 Valve made from a sealing material in one piece with sealing ring-like bulges on the underside of the valve plate

List of reference symbols

1 - Lower part of the vessel

2 - Vessel lid

3 - Cover seal

4 - Recess in the lid for stacking the containers

5 - Recess for the valve

6 - Edge that runs around the entire lid and fits exactly into the bottom of the vessel

fits
7 - Groove in the edge of the lid into which the sealing ring is clamped

8 - Opening in the lid into which the valve is inserted

9 - Sealing ring on the valve

10 - Plate made of special plastic that is fixed to the valve

11 - Opening in the valve that connects the vessel interior with the measuring mechanism

12 - transparent, dimensionally stable hollow cone that is fixed to the valve

becomes

(5)

1 13 - Seal at the bottom of the cone

14 - Air bubble in the cone

15 - Liquid with which the cone is filled

16 - flexible valve legs

5 17 - Thickening on the valve legs

18 - Valve as Fig.4-8

19 - raised edges for stacking on the lid

20 - Grooves for stacking in the bottom of the vessel, into which the edges (19) of the

Lids fit exactly 10 21 - Valve disc

22 - Curvatures below the valve plate (21) which serve as sealing rings

function

23 - Lines or markings on the cone where the vacuum state

of the vessel is read 15

Claims (15)

Protection claims 1. A vessel with a lid, seal and valve that can be pumped empty of air, characterized in that that the vessel is rectangular or round, that the lid (2) rests precisely on the vessel (1) and is vacuum-tight with the help of a sealing ring (3), that there is an opening (8) in the lid into which the valve (18) can be inserted,
that there is a mechanism in the valve that allows the vacuum state of the vessel to be detected, that the vessels are stackable, and that the container and lid are made of a vacuum-stable and heat-resistant material such as glass, ceramic, metal or special plastic. 2. Vessel according to claim 1, characterized in that there is an edge (6) on the underside of the lid which runs around the lid and is offset inwards (corresponds to the inner diameter of the vessel) so that the lid (2) rests exactly on the vessel (1). 3. Vessel according to claim 1+2, characterized in that there is a recess (4) in the lid which corresponds to the outline of the vessel base, which enables several closed vessels to be stacked. 4. Vessel according to 1+2, characterized in that that, as an alternative to claim 3, there are grooves (20) in the bottom of the vessel and raised edges (19) on the lid, which fit into one another in such a way that several closed vessels can be stably stacked. 5. Vessel according to claims 1-4, characterized in that the seal (3) is an O-ring. 6. Vessel according to claims 1-5, characterized in that in the edge (6) on the underside of the lid (2) there is a groove (7) which is directed outwards and runs around the lid, that the groove (7) corresponds to the round profile of the sealing ring (3), that the depth of the groove (7) corresponds to approximately 1/4 to 1/3 of the sealing diameter. 7. Vessel according to claims 1-6, characterized in that there is a further recess (5) in the lid (2) which corresponds in depth to the height of the valve (18) resting on it, there is an opening (8) in the center of the recess which is matched to the diameter of the valve (18) so that the valve can be inserted into it, that the surface of the recess and the surface surrounding the recess are flat and smooth, which ensures that the valve and a suction cup rest in a vacuum-tight manner. 8. Vessel according to claims 1-7, characterized in that the valve is a T-shaped plug pin with two or more legs (Fig.4), that there are thickenings (17) on the lower part of the legs, which are directed outwards and taper upwards and downwards at a certain angle, that the diameter of the valve at the thickest point of the thickening is slightly larger (approx. 10%) than the opening intended for the valve, that when the valve is pushed in, the thickenings protrude into the vessel interior, that the legs (16) of the valve are flexible, which allows the compression and subsequent spring-back of the valve legs when inserted into the opening (8), that the valve has a corresponding O-ring as a sealing component (9) is postponed. 9. Vessel according to claim 8, characterized in that the upper part of the valve is hollowed out in the shape of a cup (Fig. 5), that the hollow is connected directly to the interior of the vessel through an opening (11) in the middle of the valve, that a plate made of special plastic is placed on the cup-shaped hollow (10) is fixed in an airtight manner (Fig.5), which bulges depending on the pressure inside the vessel and changes color (the type and intensity of the discoloration indicate the vacuum state of the vessel). 10. Vessel according to claim 8+9, characterized in that a hollow, dimensionally stable and transparent cone (12) is fixed in an airtight manner to the cup-shaped cavity with an opening to the vessel interior (Fig. 6+7), that the hollow cone is filled with a certain liquid (15), that the cone is sealed at its base with a flexible, air- and liquid-tight material (e.g. rubber or latex) (13), that an air bubble (14) with a certain volume is located in the sealed cone which is filled with a certain liquid. 11. Vessel according to claim 10, characterized in that there are lines or markings (23) at certain heights on the cone, from which the vacuum state of the vessel can be read depending on the liquid level in the cone. 12. Vessel according to claim 8, characterized in that the valve is made in one piece from a sealing material (e.g. rubber) (Fig.8), that there are circular bulges under the valve plate (21) (22) which act as integrated sealing rings and make the use of additional sealing rings to seal the valve superfluous, that the bulges have a semicircular cross-section, that if there are several circular bulges (integrated sealing rings) the one on the inside always has a slightly smaller cross-section than the next one on the outside. 13. Vessel according to claims 8-12, characterized in that there is a movable ring on the valve, with the help of which the valve can be raised to ventilate the vessel. 14. Vessel according to claims 1-13, characterized in that the lid is curved outwards, that all inner edges of the vessel are rounded, that the side walls of the vessel are bevelled so that the vessel diameter is larger at the upper edge than at the bottom of the vessel (Fig. 1), that the cross-section of the vessel interior has an approximately round or oval shape, which considerably increases the vacuum stability of the vessel enlarged. 10 15. Vessel according to claims 1-14, characterized in that the sealing ring on the lid is a flat ring as an alternative to claim 5, that the seal is embedded, cast or glued into the lid without any gaps, which simplifies the handling and care of the vessels.