CN100420612C - Pressure indicator - Google Patents
Pressure indicator Download PDFInfo
- Publication number
- CN100420612C CN100420612C CNB018201539A CN01820153A CN100420612C CN 100420612 C CN100420612 C CN 100420612C CN B018201539 A CNB018201539 A CN B018201539A CN 01820153 A CN01820153 A CN 01820153A CN 100420612 C CN100420612 C CN 100420612C
- Authority
- CN
- China
- Prior art keywords
- pressure indicator
- reservoir vessel
- pressure
- container
- container cover
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D79/00—Kinds or details of packages, not otherwise provided for
- B65D79/005—Packages having deformable parts for indicating or neutralizing internal pressure-variations by other means than venting
- B65D79/0087—Packages having deformable parts for indicating or neutralizing internal pressure-variations by other means than venting the deformable part being located in a closure, e.g. in caps or lids
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
- B65D81/18—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient
- B65D81/20—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas
- B65D81/2007—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas under vacuum
- B65D81/2038—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas under vacuum with means for establishing or improving vacuum
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D51/00—Closures not otherwise provided for
- B65D51/16—Closures not otherwise provided for with means for venting air or gas
- B65D51/1672—Closures not otherwise provided for with means for venting air or gas whereby venting occurs by manual actuation of the closure or other element
- B65D51/1683—Closures not otherwise provided for with means for venting air or gas whereby venting occurs by manual actuation of the closure or other element by actuating a separate element in the container or closure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
- B65D81/18—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient
- B65D81/20—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas
- B65D81/2007—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas under vacuum
- B65D81/2015—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas under vacuum in an at least partially rigid container
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Closures For Containers (AREA)
- Packages (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The invention relates to a pressure indicator (6) for a storage container (15) for food. Said container can be closed in an airtight manner and comprises a connecting device (9) for a vacuum pump used to evacuate the air from inside (22) the storage container (15). The invention is characterised in that the pressure indicator (6) is embodied in the form of a dome-shaped membrane which can fold up into itself. One such pressure indicator (6) facilitates the air evacuation process as the user can see immediately when or if there is still a sufficient vacuum inside (22) the storage container (15). The inventive pressure indicator (6) provides an optically and haptically detectable signal corresponding to the pressure state inside the storage container (15).
Description
Technical field
The present invention relates to a kind of food storage container, and be particularly related to a kind of food storage container with pressure indicator.
Background technology
The system that stores food in the family has been known, and without any processing or do not improve condition of storage and store and compare, these systems can make food better store under the condition of storage.A kind of mode of improving storage food is that it is kept in the container of vacuum.These systems have been proved and have prevented to produce extraordinary effect aspect certain micro-organisms, insect pest, mould and the conk.And this helps to prevent the food oxidation, avoids the loss of moisture and fragrance in the food.But, in the system of these types, be difficult to the degree of vacuum that keeps enough in the reservoir vessel, particularly keeping the long time.
According to WO 88/00560, use a container cover can carry out visual inspection, specification sheets has wherein been described a kind of opening mechanism of Plastic beverage can.Beverage can has a vinyl cover, outwards protrudes when the pressure of internal tank is higher than barometric pressure.Use this structure, the pressure that can not draw relevant internal tank is higher than the quantitative result of barometric pressure size.
CH304374 discloses a kind of seal cover cap of aluminum disinfecting container, and seal cover cap is cirque structure substantially and is contained on the cylindrical aluminium container.Rubber seal is placed between the upper limb of the edge of lid and container.Be provided with other opening at the middle part of container cover, cover by rubber cap.In this structure, whether rubber cap is vacuum as visual inspection in the indication container.As long as have subatmospheric enough pressure in the container, then rubber cap is to projecting inward corresponding quantity.Along with reducing this protrusion, vacuum fades away.Therefore, for the viewer, be difficult to determine whether pressure below atmospheric pressure is sufficient to still guarantee that the food in the container is fresh in the container.
Summary of the invention
The purpose of this invention is to provide a kind of improved food storage container pressure indicator, to prevent above-mentioned technical disadvantages.
According to an aspect of the present invention, a kind of food storage container is provided, utilize the container cover can be with the container air tight closure, described container cover comprises the bindiny mechanism that is used for vacuum pump, and described vacuum pump is used to the inside of reservoir vessel of finding time, and is provided with the pressure indicator that is used to indicate internal pressure, the structure of described pressure indicator is dome-shaped folded membrane, be connected to the valve gear on the container cover, described valve gear is formed by check valve, and this check valve is towards the internal direction closure of reservoir vessel.Described pressure indicator and described check valve are made from elastic body plane bottom, and described planar base is compacted and contact with container cover.The advantage of this pressure indicator is that manufacturing is simple and cost is low, and has avoided the shortcoming of prior art.The user uses such pressure indicator, simplified evacuation, because can arrive by immediate observation when reservoir vessel inside reaches enough vacuum.Pressure indicator of the present invention provides the detection signal of vision and sense of touch, corresponding to the pressure condition in the reservoir vessel.And the visual impact of the film of being made by elastic plastic material for example, can increase corresponding to signal colour by making it.Corresponding haptic effect makes the weak-eyed user also can judge pressure state in the reservoir vessel, and this is to protrude in the valve gear outline or the degree that disappears in the valve gear outline realizes under corresponding pressure condition by pressure indicator.
Preferably, described pressure indicator comprises elastic element, under predetermined pressure pressure indicator is opened to its initial position.When there was ambient pressure in reservoir vessel inside, the film of pressure indicator was obviously outwards outstanding.
Preferably, make by single part bottom the described elastic linear.Pressure indicator adopts the signal location that can not make a mistake.When the pressure in the container reached subatmospheric set pressure, film caved inward.Suitably select elastic element, when surpassing subatmospheric minimum pressure in the reservoir vessel, guarantee recessed go back to its initial position of film energy, be that pressure indicator only has two positions that can not make mistakes: subatmospheric enough pressure (pressure indicator caves inward) in the reservoir vessel is lower than the not enough pressure (pressure indicator is in the initial position) of barometric pressure or ambient pressure.The formation of elastic element for example, is used for the film of pressure indicator by selecting suitable plastic material springy, or by in the film of pressure indicator, inserting metal spring.
Preferably, described check valve is formed by the removable packing seal that is positioned on the bottom, and described packing seal is partial cut formation from the bottom, and when being in closed position the sealing pad vent in the cover for sealed container closely.Thereby reservoir vessel and article wherein can store in refrigerator, and thaw in micro-wave oven later on.
Preferably, described pressure indicator is only indicated two tangible states, that is, reservoir vessel inside is subatmospheric enough pressure, and perhaps reservoir vessel inside is subatmospheric not enough pressure.In this structure, pressure indicator is integrated in the valve gear and obtains multifunctional element.
Preferably, described pressure indicator is made of plastics, and the suitable range of temperatures of described plastics is-40 ℃ to+100 ℃.In this structure, selected material preferably has enough rigidity and necessary sealing property.This element adopts injection molded, low cost of manufacture, and be installed on the reservoir vessel easily.
Preferably, the material of described pressure indicator has easy observed color.In this structure, advantage is deformable structure and pressure indicator universal availability on food storage container of pressure indicator.
Preferably, it is cup-shaped structure that described pressure indicator has basic, and has flat base, the annular wall adjacency of base and conically widening.In this structure, make pressure indicator observe also clearly indicated pressure state especially easily.
Preferably, described annular wall slightly outwards arches upward, and can reach the knee springing rapidly of pressure indicator.Clearly indicate good or poor vacuum state in this case, thereby avoid moving gradually of pressure indicator.
Preferably, in its initial position, stretch out the telltale holes of described pressure indicator from pulling-on piece.Like this, pressure indicator can fold under very little friction, because do not have tangible sidewall friction when it is twisted in a time-out.
Preferably, described pulling-on piece comprises the circumference muscle, the bottom is pressed at the end of container cover, thereby reservoir vessel is formed sealing closely.Like this, determine pressure state especially easily,, and do not insert the indicating device opening when having sufficient vacuum because pressure indicator inserts the indicating device opening immediately when vacuum is insufficient.
Description of drawings
With reference to the accompanying drawings, explain other features and advantages of the present invention in the description of embodiment below.In the accompanying drawing:
Fig. 1 is the schematic cross sectional views that is used for valve gear first embodiment container cover, that have pressure indicator of the present invention of food storage container, the vacuum deficiency that exists in the expression reservoir vessel;
Fig. 2 is the schematic cross sectional views with valve gear of Fig. 1 pressure indicator, has enough vacuum in the expression reservoir vessel;
Fig. 3 is the diagrammatic sketch of Fig. 1 valve gear, but expression is opened vent with pulling-on piece, makes to reach barometric pressure in the reservoir vessel again;
Fig. 4 is the part sectional perspective view that is used for pressure indicator of the present invention second embodiment of food storage container, the vacuum deficiency that exists in the expression reservoir vessel;
Fig. 5 is the figure similar to Fig. 4, but pulling-on piece upwards digs and open vent, thereby can reach equilibrium of pressure in reservoir vessel;
Fig. 6 is the transparent view of food storage container with pressure indicator of Fig. 4.
For simply, same or similar element uses identical reference symbol below.For fear of repetition, similar function is endowed similar project numeral with operation mode.
The specific embodiment
Fig. 1 to 3 expression is used for the schematic cross sectional views of pressure indicator of the present invention 6 first embodiment of food storage container 15 (Fig. 4).According to Fig. 1 to 6, pressure indicator 6 is connected on the valve gear 1, and valve gear 1 is contained on the container cover 2.Pulling-on piece 7 is connected on the container cover 2 with individual construction integral body by film hinged 32.Pulling-on piece 7 and container cover 2 are by heat-resisting thermoplastic material injection molded.Pulling-on piece 7 is oval-shaped plate in plan view substantially, has bindiny mechanism 9, and as the aspirating hole of vacuum pump, bindiny mechanism 9 is formed by the smooth annular surface 18 in pulling-on piece 7 outsides 24 and the one or more aspirating holes 17 in the annular surface 18 substantially.This unit describe is that document code that applied on the same day by applicant and in-company is 06499-PT10/Ha in patent application " device of emptying food storage container " (Device forEvaeuating Storage Containers for Food).Here all quote as described theme, and the theme of above-mentioned application can be the theme of the present patent application.
In Fig. 1 to 6, packing seal 3 is made by elastoplast, is positioned at the downside of pulling-on piece 7, below bindiny mechanism 9.In first embodiment of Fig. 1 to 3, packing seal 3 is fastened on the pulling-on piece 7 by annular arrangement bar 19, and makes disc, as element independently.Bar 19 has air by-pass passage 30.
In Fig. 1 to 6, pulling-on piece 7 is inserted in the groove 20 of container cover 2 of reservoir vessel 15, and described groove correspondingly is suitable for pulling-on piece 7 and is rectangle substantially.Have vent 4 in the container cover 2, be positioned at the bindiny mechanism 9 of pulling-on piece 7 and the below of packing seal 3.In open mode, vent 4 is communicated with the inside 22 of atmosphere and reservoir vessel 15.In off position, vent 4 sealed pad 3 vapor seals.Vent 4 forms check valve 40 with packing seal 3, closes along the direction of reservoir vessel 15.
According to Fig. 1 to 6, gage hatch 5 is near the vent 4 of container cover 2.Gage hatch 5 by the plastic film 29 of pressure indicator 6 from the top and on every side vapor seal cover.Pressure indicator 6 extends upward, be basically perpendicular to the plane of container cover 2, and show sidewall 23 cup-shaped substantially, that a little outwards arch upward at the off-square emptying state, the edge is upward to being tapered, terminate in horizontally extending circular base 24, shown in Fig. 1,3,4 and 5.The diameter D at the end 24 is less than the diameter d of pressure indicator 6 runners parts 25 split sheds, especially in Fig. 4.By the structure of above-mentioned pressure indicator 6, the sidewall 23 of pressure indicator 6 when being exposed to vacuum, is withdrawn in the cavity 26 as the volume film, as shown in Figure 2.
According to Fig. 1 to 6, pulling-on piece 7 has telltale holes 8 in the position of pressure indicator 6, and when the pressure of reservoir vessel 15 inside 22 was subatmospheric not enough pressure, pressure indicator 6 was vertically stretched out the outside 33 of pulling-on piece 7 by telltale holes 8.Pressure indicator 6 is made by elastoplast and signal colour preferably, is red in this example.According to Fig. 1 to 3, pressure indicator 6 is strengthened from the inboard by elastic element 12, and elastic element 12 is preferably made by elastomeric material, for example sheet spring or elastoplast, and match with the inboard 34 of pressure indicator 6 in its surface.
From Fig. 1 to 6, have on the pulling-on piece 7 and actuate surface 10 near the part of right hand free end edge.The end of pulling-on piece 7 begins slightly upward from curved edge 35.Container cover 2 comprises groove 20, thereby owing to the end 37 of pulling-on piece 7 by muscle 29,36 and groove 20 separates.The actuating surface 10 and can be grabbed between thumb and other finger (not shown) comfily and draw back in the upward direction of pulling-on piece 7.
Fig. 1 to 3 represents retaining clip 11, and the planar base 25 that the elastic plastic material of pressure indicator 6 is made is pressed on the container cover 2.In this case, retaining clip 11 is supported on the wall of container cover 2, and this does not illustrate in the accompanying drawings.In Fig. 1 to 3, cup-shaped pressure indicator 6 is connected on the bottom 25 as individual construction integral body, clamps thereby pressure indicator 6 is held folder 11, is connected on the container cover 2, plays sealing function.
Fig. 4 to 6 expression is used for the part transparent view of second embodiment of valve gear 1 food storage container 15, that have pressure indicator 6 of the present invention.In this embodiment, pulling-on piece 7 is connected on the container cover 2 by hinged 32 integral body of film as a single-piece.Packing seal 3 is positioned at bindiny mechanism 9 belows of pulling-on piece 7, is connected on the pulling-on piece 7 by driver element 13.Packing seal 3 and driver element 13, bottom 25 and pressure indicator 6 be by making with a kind of elastoplast, inserts in the crimping 21 and be fixed in the groove 20 of container cover 2.The plastics that are used for pressure indicator 6 have elasticity, thereby when vacuum is not enough or enough, pressure indicator 6 is produced transport to action rapidly.Essential distinction between the embodiment of Fig. 1 to 3 and Fig. 4 to 6 is, packing seal 3 is the independent sealing members that separate with pressure indicator 6 among Fig. 1 to 3, and these parts are formed by an elastic element in the embodiment of Fig. 4 to 6, packing seal 3 wherein cuts with bottom 25 parts, thereby forms gap 28.
And, around the edge of the container cover 2 of Figure 4 and 5, have circumferential sealing 14, make the airtight feud sealing of lid reservoir vessel 15.But, also can not use sealing 14, cover 2 like this and itself reservoir vessel 15 is formed sealing closely, shown in Fig. 1 to 3.At the closure state of valve gear 1, bottom 25 is pressed on the bottom 37 of container cover 2 by circumference muscle 29, thereby forms sealing.
In the diagram of Fig. 1 and 3 to 6, the pressure of reservoir vessel 15 inside 22 equals ambient pressure.Pressure indicator 6 stretches out in outside the pulling-on piece 7 from telltale holes 8 owing to its fexible bias pressure.
In the diagram of Fig. 2, reservoir vessel 15 inside 22 have enough vacuum.Pressure indicator 6 is inhaled into towards the direction of internal tank 22 and is in folding in the cavity 26 or return state rapidly.In this state, outside the outline of the outstanding at all pulling-on piece 7 of pressure indicator 6 or only stretch out can uncared-for quantity.Pressure indicator 6 is folding as the volume film.The ratio of diameter D and d is selected according to the wall thickness f and the elastomeric material of pressure indicator, pressure indicator 6 can suddenly be folded, as shown in Figure 2 under certain vacuum.If the degree of vacuum of internal tank 22 descends, pressure indicator 6 outwards moves suddenly and also gets back to original point.Its advantage can provide tangible indication.
The operating mode of two embodiment is as follows:
When using in the family, the user at first position of the pressure indicator 6 by checking leak free container cover 2 is known the pressure state of internal tank 22.If stretch out from telltale holes 8 bottom of pressure indicator 6, the insufficient pressure of this expression internal tank 22 is preserved (seeing Fig. 1,4 and 6) to guarantee food under vacuum condition.
Find time now Fig. 1,3 and 6 reservoir vessel 15.In order to carry out evacuation process, in the bindiny mechanism 9 of valve gear 1, place the bleeding point (not shown) that vacuum pump has the circumferential sealing limit.Then, vacuum pump is started working.This opens the vent 4 of valve gear 1 automatically, because swabbing action makes packing seal 3 leave vent 4, the air in the reservoir vessel 15 is taken away by vacuum pump.According to Fig. 1, air through the seal receptacle 38 of packing seal 3, is walked around the outside of packing seal 3 by vent 4, flows through air by-pass passage 30 and is discharged by vacuum pump through bindiny mechanism 9.When reservoir vessel 15 inside 22 reached enough vacuum, pressure indicator 6 inwardly sucked (Fig. 2) suddenly.This indication user can finish bleeding.When vacuum pump unloads in bindiny mechanism 9, packing seal is crushed on the edge of vent 4 again, seals into airtight automatically.Whenever in order to form vacuum and to repeat aforesaid operations when reusing vacuum pump inner 22.Inner 22 vacuum makes food remain on fresh state in a long time, because there is not oxygen to prevent the oxidation of food.
In order to take out fresh food from reservoir vessel 15, the user catches with two fingers and actuates surperficial 10 belows, uses the very little power pulling-on piece 7 of rotation diagram 5 in the counterclockwise direction.According to Fig. 3, packing seal 3 raised by pulling-on piece 7 thus and by bar 19 along upward to leaving seal receptacle 38, thereby open vent 4.In the embodiment of Fig. 5, the upside of pulling-on piece 7 at first contacts edge 27 downsides on the driver element 13, and upwards spurs driver element 13 and packing seal 3, leaves seal receptacle 38 and upwards rotation (Fig. 5) in the counterclockwise direction up to packing seal 3.According to Fig. 1 to 5, air enters internal tank 22 by the aspirating hole 17 and the vent 4 of bindiny mechanism 9.
Can take off container cover 2 and needn't use tangible power from reservoir vessel 15 now.By being the gap 28 of U-shaped substantially, packing seal 3 parts of Figure 4 and 5 are separated with planar base 25, this means that 3 of packing seals are connected with remaining bottom 25 in left back part 39, the by gravity packing seal will fall into vent 4 again and form check valve, thereby make container form vacuum without doubt.But, pulling-on piece 7 is designed to the part that is clamped and connected by container cover 2 is returned hastily on its position and also be fine, thereby vent 4 is closed in sealing state.In Fig. 3, when pulling-on piece 7 packing seal 3 when film hinged 32 rotates also lifts, because packing seal 3 is fixed on the pulling-on piece 7, in order to carry out the function of check valve.
Fig. 6 represents the transparent view of the thermoplastic storage container 15 of food, wherein has valve gear 1 as shown in Figure 4.Reservoir vessel 15 comprise positive parallelepiped main body 16 and, when when the top is watched, what have a circumferential edges 27 is the container cover 2 of rectangle substantially.In the groove 20 of 2 one narrow sides of container cover is valve gear 1.The surface 10 of actuating of pulling-on piece 7 terminates near the outside face 33 of container cover 2.When degree of vacuum is not enough, only there is pressure indicator 6 to stretch out the telltale holes 8 of pulling-on piece 7 vertically upward.Can observe circular bindiny mechanism 9 and the aspirating hole 17 with smooth annular surface 18 along internal tank 22 directions near pressure indicator 6, driver element 13 aspirating hole 17 thus stretches out its edge 27.Edge 27 is used to improve the driving effect of driver element 13 when pulling-on piece 7 rotates up.Leverage by distance R and r (Fig. 5) produce when still there is vacuum in internal tank 22, only needs very little hand-power F (Fig. 4) to act on the grip surface 10 and packing seal 3 can be lifted from seal receptacle 38.More little apart from r, distance R is big more, and valve gear 1 is easy more to be opened.
Claims (11)
1. food storage container, (15), utilize container cover, (2) can be with the container air tight closure, described container cover, (2) comprise the bindiny mechanism that is used for vacuum pump, (9), described vacuum pump is used to the reservoir vessel of finding time, (15) inside, (22), and be provided with that to be used for indication inner, (22) pressure indicator of pressure, (6), described pressure indicator, (6) structure is dome-shaped folded membrane, be connected to container cover, (2) valve gear on, (1), described valve gear, (1) by check valve, (40) form, this check valve, (40) towards reservoir vessel, (15) inside, (22) direction closure
It is characterized in that described pressure indicator (6) and described check valve (40) are made from elastic body plane bottom (25), and described planar base (25) is compacted and contact with container cover (2).
2. reservoir vessel as claimed in claim 1 is characterized in that described pressure indicator (6) comprises elastic element (12), under predetermined pressure pressure indicator (6) is opened to its initial position.
3. reservoir vessel as claimed in claim 1 is characterized in that described elastic linear bottom (25) made by single part.
4. reservoir vessel as claimed in claim 3, it is characterized in that described check valve (40) is formed by the removable packing seal (3) that is positioned on the bottom (25), described packing seal from the bottom (25) go up partial cut and form, and when being in closed position the sealing pad vent (4) in the cover for sealed container (2) closely.
5. reservoir vessel as claimed in claim 3, it is characterized in that described pressure indicator (6) only indicates two tangible states, that is, reservoir vessel (15) inner (22) is subatmospheric enough pressure, and perhaps reservoir vessel (15) inner (22) is subatmospheric not enough pressure.
6. as the described reservoir vessel of above-mentioned each claim, it is characterized in that described pressure indicator (6) is made of plastics, the suitable range of temperatures of described plastics is-40 ℃ to+100 ℃.
7. reservoir vessel as claimed in claim 1 is characterized in that the material of described pressure indicator (6) has easy observed color.
8. reservoir vessel as claimed in claim 1 is characterized in that it is cup-shaped structure that described pressure indicator (6) has basic, and has flat base (24), annular wall (23) adjacency of base (24) and conically widening.
9. reservoir vessel as claimed in claim 9 is characterized in that described annular wall (23) slightly outwards arches upward.
10. reservoir vessel as claimed in claim 1 is characterized in that in its initial position, stretches out the telltale holes (8) of described pressure indicator (6) from pulling-on piece (7).
11. reservoir vessel as claimed in claim 11 is characterized in that described pulling-on piece (7) comprises circumference muscle (29), bottom (25) is pressed at the end (37) of container cover (2), thereby reservoir vessel (15) is formed sealing closely.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10060995A DE10060995A1 (en) | 2000-12-08 | 2000-12-08 | pressure indicator |
| DE10060995.3 | 2000-12-08 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1479686A CN1479686A (en) | 2004-03-03 |
| CN100420612C true CN100420612C (en) | 2008-09-24 |
Family
ID=7666237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB018201539A Expired - Fee Related CN100420612C (en) | 2000-12-08 | 2001-11-14 | Pressure indicator |
Country Status (8)
| Country | Link |
|---|---|
| EP (1) | EP1339619B1 (en) |
| CN (1) | CN100420612C (en) |
| AT (1) | ATE319631T1 (en) |
| AU (1) | AU2002229550A1 (en) |
| DE (2) | DE10060995A1 (en) |
| ES (1) | ES2256320T3 (en) |
| HK (1) | HK1059422A1 (en) |
| WO (1) | WO2002046061A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6557462B1 (en) * | 2001-12-28 | 2003-05-06 | Wang Soo Chang | Combined vacuum valve and vacuum indicator |
| DE10317310A1 (en) * | 2003-04-14 | 2004-11-11 | Horn, Andreas, Dr. | Envelope for letters and parcels to protect against theft and interference consists of inner and outer jackets enclosing pressurized monitoring chamber, and tamperproof back pressure valve |
| US11738914B2 (en) | 2021-11-18 | 2023-08-29 | Yeti Coolers, Llc | Container and latching system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4674642A (en) * | 1984-09-07 | 1987-06-23 | Tbl Development Corporation | Pressure-indicative container closure |
| US4793717A (en) * | 1982-05-06 | 1988-12-27 | Minnesota Mining And Manufacturing Company | Device for visually indicating a pressure or temperature condition |
| FR2692870A1 (en) * | 1992-06-24 | 1993-12-31 | Bastien Michel | Visual indication device for pressure level in container - uses thinner gauge material which deforms under pressure difference in local zone of one container wall |
| DE4342394C1 (en) * | 1993-12-13 | 1995-04-27 | Fischer Ag | Valve for evacuable containers |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE8321236U1 (en) * | 1983-07-23 | 1984-02-16 | Engel, Robert, 8900 Augsburg | Suction closure |
| CA2003892A1 (en) * | 1989-11-24 | 1991-05-24 | Vacu-O-Leader International S.A.L. | Bidirectional or two-way air and gas flow control device for product packaging and a method therefor |
| DE4306171A1 (en) * | 1992-03-25 | 1993-09-30 | Alfred Herbermann | Container for vacuum packing foods - has opening in lid for inserting valve of vacuum pump which also has vacuum detector |
| GB2317882A (en) * | 1996-10-04 | 1998-04-08 | Chown Peter A C | A container for a pressurised food or drink product |
| JP3001195B2 (en) * | 1997-04-16 | 2000-01-24 | 光金属工業株式会社 | Preservation method of cooked food and vacuum sealed storage container used for it |
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2000
- 2000-12-08 DE DE10060995A patent/DE10060995A1/en not_active Ceased
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2001
- 2001-11-14 CN CNB018201539A patent/CN100420612C/en not_active Expired - Fee Related
- 2001-11-14 AT AT01990412T patent/ATE319631T1/en active
- 2001-11-14 ES ES01990412T patent/ES2256320T3/en not_active Expired - Lifetime
- 2001-11-14 DE DE50109182T patent/DE50109182D1/en not_active Expired - Lifetime
- 2001-11-14 AU AU2002229550A patent/AU2002229550A1/en not_active Abandoned
- 2001-11-14 WO PCT/EP2001/013148 patent/WO2002046061A1/en active IP Right Grant
- 2001-11-14 EP EP01990412A patent/EP1339619B1/en not_active Expired - Lifetime
-
2004
- 2004-01-30 HK HK04100648A patent/HK1059422A1/en not_active IP Right Cessation
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4793717A (en) * | 1982-05-06 | 1988-12-27 | Minnesota Mining And Manufacturing Company | Device for visually indicating a pressure or temperature condition |
| US4674642A (en) * | 1984-09-07 | 1987-06-23 | Tbl Development Corporation | Pressure-indicative container closure |
| FR2692870A1 (en) * | 1992-06-24 | 1993-12-31 | Bastien Michel | Visual indication device for pressure level in container - uses thinner gauge material which deforms under pressure difference in local zone of one container wall |
| DE4342394C1 (en) * | 1993-12-13 | 1995-04-27 | Fischer Ag | Valve for evacuable containers |
Also Published As
| Publication number | Publication date |
|---|---|
| HK1059422A1 (en) | 2004-07-02 |
| CN1479686A (en) | 2004-03-03 |
| DE10060995A1 (en) | 2002-06-27 |
| ES2256320T3 (en) | 2006-07-16 |
| ATE319631T1 (en) | 2006-03-15 |
| EP1339619A1 (en) | 2003-09-03 |
| AU2002229550A1 (en) | 2002-06-18 |
| EP1339619B1 (en) | 2006-03-08 |
| WO2002046061A1 (en) | 2002-06-13 |
| DE50109182D1 (en) | 2006-05-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080924 Termination date: 20171114 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |