CN101557989A - Valve element - Google Patents
Valve element Download PDFInfo
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- CN101557989A CN101557989A CNA200780045967XA CN200780045967A CN101557989A CN 101557989 A CN101557989 A CN 101557989A CN A200780045967X A CNA200780045967X A CN A200780045967XA CN 200780045967 A CN200780045967 A CN 200780045967A CN 101557989 A CN101557989 A CN 101557989A
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- Prior art keywords
- valve element
- storage bag
- way valve
- aperture
- sidewall
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/9247—With closure
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Packages (AREA)
- Bag Frames (AREA)
- Self-Closing Valves And Venting Or Aerating Valves (AREA)
Abstract
A one-way valve element for use with containers such as flexible storage bags includes an elastomeric or similar material that can elastically expand to expose and at least substantially resiliency recover to cover an aperture through a sidewall of the container. Hence, air from the interior volume of the container can be evacuated through the valve element by, for example, interfacing an evacuation device with the valve element. The valve element can be provided as a single layer structure or a multiple layered structure that is attached to the sidewall of the container over the aperture. In another aspect, a valve element includes a gel-like material retained in a valve body and that can displace to allow air flow across the valve.
Description
Background technology
Flexible plastic bags is widely used in various occasions, long term storage food as interim storage food under the situation of packing snack or picture are under the situation that (below the zero centigrade) refrigerates.The plastic bag of this pattern generally includes flexible side walls, and described sidewall is made with for example polyethylene, so that the inside or the inside volume that opening are provided and can enter by this opening.For sealing bag, can the interlocking confining zone be set around the edge of opening.
A FAQs that produces with this bag is that after the opening sealing, hiding air may still be trapped within the internal volume.Except not wishing to increase the overall dimension of sealing bag, the air of holding back may cause the corruption that is stored in the food in the internal volume.
Summary of the invention
Under various different situations, the invention provides the one-way valve element that can use with flexible storage bags and the method for use thereof, above-mentioned flexible storage bags low price and manufacturing and use are simple.In addition, in other cases, the invention provides a kind of attached flexible storage bags thereon of one-way valve element that has.Under a particular case, the valve element can be the band or the layer of elastomeric material, and described elastomeric material band or layer stick to the top, aperture of the sidewall setting of passing storage bag.Because the elastic behavior of elastomeric material, therefore the valve element can not cover the aperture with respect to the sidewall setting, and makes the air in the internal volume can pass the aperture motion.After air volume discharge internally, resilient elastomeric valve element can be recovered its position above the aperture at least substantially, so the sealed inside volume.
Under another kind of particular case, the valve element can be a multilayered structure, and described multilayered structure comprises following bottom and top layer, and above-mentioned bottom has the aperture that is arranged at wherein, and above-mentioned top layer is made with elastomeric material.Top layer is connected on the bottom, and can be shifted with respect to bottom, so that provide one can expand and contractile passage between the exit point on the periphery of aperture and valve element.Two-layer valve element is attached on the sidewall and is passing above the hole that sidewall is provided with.Since the elastic behavior of top layer, so top layer remains on bottom top and such aperture that covers usually contiguously, so that passage is in the state of contraction, and the internal volume sealing.During finding time, elastomeric top layer flexibly is shifted, so as expansion can allow air internally volume motion to the passage of exit point.After finding time, therefore top layer motion adjacent underlayer once more makes passages shrink and covers the aperture.Under a kind of specific situation, the valve element can comprise sealing member, and described sealing member is between bottom and top layer.
Under another kind of particular case, the one-way valve element that is used to be attached on the plastics storage bag can comprise a rigid bodies to the cavity description, and described cavity can hold gel-like material.When crossing the valve element and apply pressure reduction, gel-like material can be communicated with so that can cross valve element fluid at the cavity internal shift, and therefore the air in the storage bag can be passed the suction of valve element or force to make above-mentioned air cross the valve element.
According to the advantage of valve element of the present invention and storage bag is that resilient elastomeric material can make the valve element repeat and seals they self fully.Another advantage is the valve element and makes the bag low price with this valve element and make simple.These and other advantage of the present invention and characteristics will become apparent from following drawings and detailed description.
Description of drawings
Fig. 1 be flexible storage bags have be attached on its sidewall can with the transparent view of hand held evacuation device bonded assembly one-way valve element;
Fig. 2 is that the one-way valve element of Fig. 1 illustrates the exploded drawings with the relation of flexible storage bags;
Fig. 3 is the cutaway view of the one-way valve element of being got of the line A-A along Fig. 1, and the valve element is shown is in the position of normally recovering to cover aperture in the sidewall;
Fig. 4 is the cutaway view of the one-way valve element of being got of the line A-A along Fig. 1, and the valve element is shown is in the flexibly position of displacement during finding time;
Fig. 5 is that another embodiment of one-way valve element illustrates the exploded drawings with the relation of flexible storage bags;
Fig. 6 is the one-way valve element of Fig. 5 and the cutaway view that storage bag is got when along line B-B, and the recovery position that the valve element is in adjacent sidewall is shown simultaneously;
Fig. 7 is the one-way valve element of Fig. 5 and the cutaway view that storage bag is got when along line B-B, the valve element is shown simultaneously is in position with respect to the aperture elastic displacement;
Fig. 8 is the exploded drawings of another embodiment of multi-level design-calculated one-way valve element, and the relation of the sidewall of valve element and flexible storage bags is shown simultaneously;
Fig. 9 is the cutaway view that the one-way valve element of Fig. 8 is got along line C-C, the valve element is shown simultaneously is in the position that covers the recovery in aperture in the sidewall;
Figure 10 is the cutaway view that the one-way valve element of Fig. 8 is got along line C-C, the valve element is shown simultaneously is in the flexibly position of displacement during finding time;
Figure 11 is and the cutaway view of another embodiment of Fig. 9 and 10 similar one-way valve element, the multilayer valve element with mid seal is shown simultaneously is in the recovery position that covers aperture in the sidewall;
Figure 12 is the cutaway view of the one-way valve element of Figure 11, and sealing member is in displacement during finding time position is shown simultaneously;
Figure 13 is the cutaway view of another embodiment that is similar to the one-way valve element of Fig. 9 and 10, multilayer valve element is shown simultaneously has one and comprise the bottom of boss and cover the top layer of boss;
Figure 14 is the cutaway view of the one-way valve element of Figure 13, top layer is shown simultaneously is shifted with respect to boss;
Figure 15 is the top plan view that one-way valve element has another embodiment of main component and gel connector, and the aforementioned body part provides cavity, and above-mentioned gel connector is contained in the cavity;
Figure 16 is the cutaway view that the line D-D along the one-way valve element of Figure 15 is got, and the valve element is shown simultaneously is in closed layout;
Figure 17 is the cutaway view that the line D-D along the one-way valve element of Figure 15 is got, and the valve element is shown simultaneously is in the layout of opening;
Figure 18 is another cutaway view that the line D-D along the one-way valve element of Figure 15 is got, and the valve element is shown simultaneously is in the different layouts of opening.
The specific embodiment
Referring now to accompanying drawing,, wherein same parts relate to same Reference numeral, and a kind of flexible storage bags 100 has been shown among Fig. 1, and described storage bag 100 is used for stored article such as edible food.Storage bag 100 comprises the first side wall 102 and opposed second sidewall 104, and described second sidewall 104 superposes and is connected on the first side wall, so that internal volume 106 is provided between them.First and second sidewalls 102,104 along first side edge 110, parallel or uneven second side edge 112, and closed bottom margin 114 connect, described bottom margin 114 extends between first and second lateral edges.First and/or second sidewall 102,104 can be made by flexible or flexible thermoplastic material, and described thermoplastic material forms or be drawn into smooth thin wall-type sheet material.The example of suitable thermoplastic material comprises high density polyethylene (HDPE) (HDPE), low density polyethylene (LDPE) (LDPE), polypropylene (PP), ethylene-vinyl acetate copolymer (EVA), nylon, polyester, polyamide, ethylene-vinyl alcohol copolymer, and can form with single or multiple lift.Thermoplastic material can be transparent, semi-translucent, opaque or painted.In addition, the material that is used for sidewall can be sir-tight material.Sidewall 102,104 can be by any suitable method, and for example heat sealing method connects along first and second lateral edges 110,112 and bottom margin 114.
For the top 120,122 that enters internal volume 106, the first and second sidewalls 102,104 keeps not connecting, so that limit opening 124, described opening 124 extends between first and second lateral edges 110,112 relative with bottom margin 114.For sealed open 124, the first and second interlocking restraint zones 126,128 can be attached on the inside face of corresponding first and second sidewalls 102,104.First and second restraint zones 126,128 usually between first and second lateral edges 110,112, be parallel to top 120,122 and spaced apart extension below described top 120,122.Restraint zone 126,128 can comprise complementary profile, and described complementary profile is when by user's hand tightly together the time, and reciprocal interlocking ground connects and unclamps.In further embodiments, bag 100 can comprise movable slider, and described slider is on restraint zone 126,128, so that help the sealing of opening 124 and remove sealing.In further embodiments, storage bag can comprise other closing means.
In order to find time for storage bag 100, according to embodiments of the invention, storage bag comprises an one-way valve element 130, and described one-way valve element 130 is attached on the first side wall 102.Referring to Fig. 2, in an illustrated embodiment, one-way valve element 130 is mono-band or layer, and described mono-band or layer can be rectangular shapes, and can make with elastomeric material.Elastomeric material can be any suitable elastomeric material, comprises for example rubber, TPE (thermoplastic elastomer), TPU (thermoplastic polyurethane rubber), LDPE (low density polyethylene (LDPE)) and plasticized PVC (polyvinylchloride).Elastomeric material can have elastic performance, and described elastic performance makes elastic properties of materials ground expand and resiliently recover its original shape at least substantially from its original shape.In order to strengthen this resilient characteristic, it is at about 0.01-0.20GPa (1500-30000 pound/inch that elastomeric material can have modulus of elasticity
2) between.
Still referring to Fig. 2, valve element 130 can be attached at 132 tops, aperture, and described aperture 132 is arranged to pass the first side wall 102 and is led to internal volume.Shown aperture 132 is circular, but can have any suitable shape in other embodiments.For attached valve element 130, can be on the first side wall 102 corresponding to the position coating binder 134 of first and second ends 136,138 of the rectangular band of elastomeric material.In other embodiments, adhesion agent can be applied on the downside of valve element 130 self, and protects this place by peeling off backing.When attached, as shown in Figure 3, first and second ends 136,138 of valve element 130 are positioned on the opposite side in aperture 132, and the centre portion of valve element 130 is adjacent to cover the aperture simultaneously.Elastomeric material can stretch or compress slightly, so that the contiguous aperture of hold-off valve element covers and seal orifice simultaneously.
During finding time, valve element 130 can be connected by interface with the nozzle of evacuator, so that apply suction force above the valve element.This hand held evacuation device 129 is shown in Figure 1 with respect to valve element 130.Referring to Fig. 4, the difference of pressure that crosses valve element 130 makes elastomeric material flexibly expand and from sidewall 102 upward displacements, thus aperture 132 is exposed to surrounding environment.Then from the air of internal volume 106 via the aperture by and pass through around the lateral edges of rectangular strip, thereby leave storage bag.After removing the air of aequum, the difference of pressure that crosses valve element 130 is eliminated by for example removing aspirator.The elastic behavior of elastomeric material makes valve element 130 return to the reference position of its adjacent sidewall 102 and covering and seal orifice 132 then.
As known from Figure 3, in various embodiment, exist the state or the pressure of finding time to help hold-off valve element 130 contiguous the first side walls 102 in the internal volume, and therefore improved the sealing in aperture 132.In fact, the resilient characteristic of elastomeric material can make valve element 130 can partly be drawn in the aperture 132, therefore makes valve element 130 play a connector or drg.In addition, the resilient characteristic of elastomeric material can make vacuumizing of storage bag and seal the number of times that many repetitions can take place.
Referring to Fig. 5, Fig. 5 shows another embodiment of one-way valve element 230, and described one-way valve element 230 is for using according to the described flexible storage bags of another aspect of the present invention 200.Valve element 230 also can be a single layer of elastomeric material, and described valve element 230 can be round-shaped.For valve element 230 is attached on the first side wall 202 of storage bag 200, the downside that can cross the valve element is placed two parallel adhesive tapes 234.Attached suitably so that cover when passing the aperture 232 that sidewall 202 is provided with when valve element 230, adhesive tape 234 is along one of them extension of the both sides in aperture.Therefore, adhesive tape 234 summarys demonstrate the profile of expansion and constricted channel 238, and described passage is extending between the one or more exit points 240 on aperture and the valve component periphery and between elastomeric material and the first side wall 202.
More precisely, referring to Fig. 6, when valve element 230 is in normal or during the state that loosens, the elastomeric materials in the passage 238 cover and seal orifice 232 contiguously.Yet referring to Fig. 7, when having pressure reduction between the top surface of internal volume 206 and valve element 230, the elastomeric material in the zone of passage 238 flexibly is shifted from the first side wall, thereby can be for being communicated with between the exit point 240 at aperture 232 and periphery place.Therefore, in the environment around aperture 232 is exposed to.Because the resilient characteristic of material is recovered its normal position at least substantially so the elastomeric material in the passage 238 also can be close to the sidewall 202 that covers aperture 232.
Referring to Fig. 5,6 and 7, they show the other feature of valve element 230.The other feature of described valve element helps valve element seal orifice 232.In various embodiment, sealant material 242 can be included in the passage 238, between the elastomeric material of valve element 230 and 232 tops, aperture and/or the first side wall on every side 202.Aquaseal can be an oil, as silicone oil, and semi-rigid material such as gel, gel adhesive, and/or jelly.Usually, gel comprises at least a periodic copolymer, and described periodic copolymer is adhered on liquid such as the mineral oil, therefore makes oil become semi-rigid.Utilizing semi-rigid material is that material is unlikely revealed or displacement from passage 238 as the advantage of aquaseal.Referring to Fig. 6, when passage 238 contractions and valve element 230 covering apertures 232, sealant material can directly be close to the aperture to be placed, and has improved sealing simultaneously.When pressure reduction made 230 displacements of valve element and therefore makes the passage expansion, sealant material 242 can be shifted with the valve element, so that expose aperture 232.
Referring to Fig. 8, Fig. 8 shows another embodiment of one-way valve element 330, and described valve element 330 is for using according to the described flexible storage bag of another aspect of the present invention 300.Especially, shown valve element 330 is multi-level or multiple field valve element, and described multiple field valve element comprises bottom 332 and top layer 334, and they the two can be that circular basically shape and size is corresponding.Top layer 334 can comprise elastomeric material.Bottom 332 can be made with any suitable material, and described material comprises for example flexible thermoplastic sheet, rigid thermoplastic material or elastomeric material.In addition, bottom 332 can have the aperture 336 that wherein is provided with at the center.Top layer 334 is adjacent to be fixed on the bottom 332, so that cover and center seal aperture 336.For each layer is fixed together, between them, place two parallel adhesive tapes 340, described adhesive tape 340 is briefly depicted the profile of expansion and constricted channel 348, and described passage 348 is extending between the one or more exit points 344 on the periphery of aperture and valve element 330 and between each layer.
Then valve element 330 is attached on the first side wall 302, so that center port 336 is aimed at the aperture 308 that is arranged at wherein basically.For attached valve element, circular strip of adhesive 342 can be applied ointment or plaster on the downside of bottom 332 with one heart around center port 336 and sidewall aperture 308.In various embodiment, for the ease of handling and distributing valve element 330, can be arranged on adhesion agent 342 tops with peeling off backing 346, described adhesion agent 342 can be removed before the valve element is attached on bag sidewall.In another embodiment, peeling off backing can be continuous plastic tape, and plurality of valves is attached on the plastic tape.Plastic tape can be rolled into coiled material, and valve can be removed from coiled material when making bag during continuous handling.Referring to Figure 10, during finding time, difference of pressure crosses between the top surface that valve element 330 is applied to internal volume 306 and top layer 334, and top layer flexibly is shifted, and therefore makes passage 348 expansions, and forms between aperture 336 and each exit point 344 and be communicated with.Referring to Fig. 9, from the air in the internal volume 306 via passage 348 by and flow out after the exit point 344, top layer 334 is the initial position of its adjacent underlayer of recovery of elasticity 332 at least substantially, passage 348 is shunk and covers each aperture.
Be another embodiment that is attached to the multilayer one-way valve element 430 on the flexiplast sidewall 402 of storage bag 400 shown in Figure 11 and 12.Valve 430 can have any suitable shape, for example, and circle or polygon shape such as rectangle or square.Multilayer valve element 430 comprises bottom 432 and elastomeric top layer 434.Bottom 432 can by rigidity, semi-rigid or thin and pliable and tough thermoplastic material make, and can have the aperture 436 that the center of passing is provided with.Top layer 434 can comprise the fine sheet or the plate of elastomeric material, and can be by adhesion agent for example 440 usually around the peripheral attachment of valve element 430 to bottom 432.Between bottom and top layer can be sealing member 438.Sealing member can have round-shaped.Sealing member 438 can be aimed at the aperture 436 in the bottom member 432 by the influence of adhesion agent 440 around the neighboring usually.In the time of on being attached to bag 400, aperture 436 and therefore sealing member 438 the two can with pass another aperture 408 that bag sidewall 402 is provided with and aim at.
Sealing member can comprise any suitable material, described material comprises for example natural rubber, silaatic, thermoplastic plastic, TPE (thermoplastic elastomer is as the Dynaflex of GLS Corp.'s production), TPU (thermoplastic polyurethane rubber), LDPE (low density polyethylene (LDPE)), plasticized PVC (polyvinylchloride), hydrocarbon gels (as the Versa Gel of Penreco production) and gel adhesive (as the 555-8808 of National Starch production).And sealing member 438 can remain between bottom 432 and the top layer 434 by loosely, maybe can be fixed on the top layer by for example adhesion agent.
When operation, referring to Figure 11, the elastomeric material of top layer 334 has normal situation, and wherein it is usually located at bottom 432 vicinity, and therefore keeps sealing member 438 to abut against bottom, so that cover aperture 436.Therefore, as shown in Figure 11, valve element 430 has closed type to be arranged, so the air in the storage bag can not cross the valve element.Yet if center on 430 applied pressure official posts of valve element storage bag, 400 pressure inside greater than external pressure, therefore the not bonding part of elastic top layer 432 also can make sealing member 438 displacements and not cover aperture 436 with respect to bottom 434 displacements.Therefore, as shown in Figure 12, the valve element has the layout of opening, and wherein the air in the storage bag can pass sidewall aperture 408 and bottom aperture 436, so that discharge bag.After finding time, the elastic property of elastic top layer material makes top layer 434 return to the normal condition of its adjacent bottom, so that sealing member 438 covers aperture 436 again.In another embodiment, bottom can be got rid of, and elastomeric top layer can directly be attached on bag sidewall, and described bag sidewall is stack one areole usually.Sealing member can be between top layer and sidewall.
Referring to Figure 13 and 14, Figure 13 and 14 shows another embodiment of multiple field one-way valve element 530, and described valve element 530 is used to be attached to the themoplasticity sidewall 502 of storage bag 500.Valve element 530 comprises bottom 532 and the elastomeric top layer 534 that is attached on the bottom.The valve element 530 that comprises bottom 532 and top layer 534 can have round-shaped.For bottom 532 is attached on the top layer 534, can with adhesion agent 550 around periphery be placed on two-layer between.Bottom 532 itself can be with rigidity or semi-rigid material, and for example thermoplastic material is made.And bottom 532 can comprise the center port 536 of passing its setting.On the upper surface 548 of bottom 532, usually around center port 536 can be the boss 552 of projection, the boss 552 of described projection can roughly be round-shaped, and can have one significantly less than the diameter of the diameter of bottom 532.In various embodiment, boss 552 can stretch out 0.1mm-1.0mm above upper surface 548.
Referring to Figure 13, resilient top layer 534 can be so attached, so that have the normal condition of common adjacent underlayer 532, described bottom 532 comprises boss 552, and therefore cover aperture 536.Therefore, under normal condition, valve element 530 closures, and can not cross the valve element from plastic bag 500 or from the air of surrounding environment.When like this when attached boss 552 can between resilient top layer 534 and bottom 532, produce enough sealing arrangement closely to upper process and flat top surface thereof.For top layer 534 is attached on the bottom 532, adhesion agent 550 roughly can be placed between bottom and the top layer around periphery.In addition, when valve element 530 was attached on the bag 500, the aperture 536 in the bottom 532 can be aimed at the aperture of passing 502 settings of bag sidewall.Top layer 534 can be made with any suitable elastomeric material, and described elastomeric material comprises for example rubber, TPE (thermoplastic elastomer), TPU (thermoplastic polyurethane rubber), LDPE (low density polyethylene (LDPE)) and plasticized PVC (polyvinylchloride).
When applying pressure reduction around valve element 530, so that bag 500 pressure inside are when being higher than the exterior pressure of bag, the air that has pressurizeed from internal volume 506 relative will make the not stick portion of resilient top layer 534 with respect to bottom 532 and boss 552 displacements.Therefore, the top layer 534 of displacement does not cover aperture 536, so that valve element 530 is in the configuration of opening, and the air in the internal volume can pass the aperture and flows out bag.Because the elastic behavior of elastomeric material, so after removing pressure reduction, top layer 534 can adjacent underlayer 532 and boss 552 its normal positions of recovery.
Referring to Figure 15 and 16, described Figure 15 and 16 shows another embodiment of one-way valve element 630, and this one-way valve element 630 is for using with the storage bag that can find time, and described storage bag of finding time has utilized gel-like material.Valve element 630 can comprise a rigidity valve body, and this rigidity valve body comprises tubular sidewall 636, described tubular sidewall 636 at first end, 644 places by bottom 632 closures.Therefore tubular sidewall 636 and base section 632 are demarcated or roughly sealed hollow 638 are provided.As shown in the figure, tubular sidewall 636 can be a cylindrical shape, and base section 632 can be circular, and described circle has the diameter bigger than sidewall, so that flange shape structure is provided.Equally, roughly sealed hollow 638 also can have cylindrical shape.What the basal surface 634 that passes base section 632 led to that cavity 638 is provided with can be aperture 640.When valve element 630 was attached on the storage bag 600, aperture 640 can be aimed at the hole 608 of passing sidewall 602 settings.Valve body can be made with any suitable material, and described material comprises it for example being the molded thermoplastic plastic of rigidity substantially.
For normally seal orifice 640 and areole 608, gel-like material 650 can be placed and be remained in the cavity 638 of common adjacent bottom part 632.Therefore, gel-like material can work to stop up cavity or function.Gel-like material can have jelly shape or semi-liquid-like consistency.The example of suitable gel-like material can comprise hydrocarbon gels (the Versa Gel that produces as, Penreco), and gel adhesive (555-8808 that produces as National Starch).In order to help that gel-like material 650 is remained in the cavity 638, second end of tubular sidewall 636 or upper end 646 can comprise one or more fingers that inwardly stretch out 642, and described finger 642 partly crosses cavity 638.Finger can play a part gel-like material to be kept and protect in cavity.
Because jelly shape or semi-liquid-like consistency, so when crossing valve element 630 and apply pressure reduction, gel-like material 650 can be at cavity 638 internal shifts.Specifically, referring to Figure 17, gel-like material 650 can be by roughly interrupting being shifted in 640 upper areas of aperture, so that provide or form passage 652, described passage 652 extends to cavity 638 from the aperture.Therefore, air can be extracted out from bag 600 or is under pressure by aperture 640 and passage 652.In case pressure reduction is got rid of, gel-like material 650 is just recovered its original shape and position in cavity 638, covers aperture 640 simultaneously, as shown in Figure 16.In another embodiment shown in Figure 180, gel-like material 651 can be placed to continuous layer of material in cavity.When crossing the valve element and apply pressure reduction, the part of this layer can be shifted as flapper valve, aperture 640 is not covered simultaneously, and therefore air can cross the motion of valve element.After removing pressure reduction, the gel-like material 651 contiguous base part 632 of can landing once more covers aperture 640 simultaneously.
All lists of references that this paper quotes (comprising publication, patent application and patent) are included in herein with identical degree reference, and each list of references is included in herein as a reference with specifying individually or, and propose as a whole.
(especially below in the context of claims) uses term " " and similar terms such as " these " in explanation context of the present invention, unless this paper points out in addition or obviously contradict with context, otherwise can think comprise odd number and plural number the two.Except as otherwise noted, otherwise term " comprises ", " having ", " comprising " reach " containing " and can think open term (that is the meaning is meant " including, but not limited to ").Unless this paper points out in addition, otherwise the number range that this paper enumerates is only planned the method for simplifying that belongs to each numerical value that separates in this scope as relating separately to, and each numerical value that separates all is included in the detailed description, is that this paper enumerates separately as it.Unless this paper has explanation in addition or contradicts with context significantly in addition, otherwise all illustrated methods of this paper can be implemented with any suitable order.Unless in addition requirement, otherwise any and all examples that this paper provided, or exemplary language (such as, " and as ") use all only be to be used for better illustrating the present invention, and do not make range limited system of the present invention.When essential, in detailed description, not having language can think to have hinted any unstated element to practical application of the present invention.
This paper has illustrated preferred embodiments more of the present invention, comprises the known best mode of the artificial the present invention of enforcement of invention.Concerning the person skilled in art, when reading above-mentioned explanation, the change of those preferred embodiments can become apparent.The contriver wishes that those skilled in the art use these changes suitably, and the contriver plans the diverse ways enforcement that use of the present invention and this paper specifies.Therefore, the present invention includes all modifications and the equivalent of theme cited in the appending claims, as applicable law allows.And, unless this paper points out in addition or in addition and context contradiction significantly, otherwise the present invention includes any combination of said elements in its all possible change.
Claims (29)
1. storage bag comprises:
First flexible side walls;
Second flexible side walls, described second flexible side walls stack also is connected on the first side wall, so that internal volume is provided; With
One-way valve element, described one-way valve element comprises one deck, described layer comprises that elastomeric material, one-way valve element stick to one and pass the top, aperture that the first side wall is provided with.
2. storage bag as claimed in claim 1, wherein this layer is a rectangular shape.
3. storage bag as claimed in claim 1, wherein this layer is round-shaped.
4. storage bag as claimed in claim 1, wherein elastomeric material is selected from following this group material, and described this group material comprises rubber, TPE (thermoplastic elastomer), TPU (thermoplastic polyurethane rubber), LDPE (low density polyethylene (LDPE)) and plasticized PVC (polyvinylchloride).
5. storage bag as claimed in claim 1, wherein elastomeric material has modulus of elasticity at about 0.01-0.20GPa (1500-30000 pound/inch
2) between.
6. storage bag as claimed in claim 1 also comprises a sealing member, and described sealing member is between elastomer layer and sidewall.
7. storage bag as claimed in claim 6, wherein sealing member has circular substantially, discoid shape.
8. storage bag as claimed in claim 6, wherein sealing member comprises a kind of material selected from following one group of material, and described this group material comprises rubber, silaatic, thermoplastic plastic, TPE (thermoplastic elastomer), TPU (thermoplastic polyurethane rubber), LDPE (low density polyethylene (LDPE)), plasticized PVC (polyvinylchloride), hydrocarbon gels and gel adhesive.
9. storage bag as claimed in claim 1 also comprises sealant material, and described sealant material is arranged between layer and the sidewall.
10. storage bag as claimed in claim 9, wherein sealant material is selected from this group material that comprises oil, gel and jelly.
11. storage bag as claimed in claim 1, wherein first and second sidewalls along first side edge, parallel second side edge, and the bottom margin of the closure of between first and second lateral edges, extending connect.
12. storage bag as claimed in claim 11, wherein internal volume can pass unlimited top and enters.
13. storage bag as claimed in claim 12 also comprises the first and second interlocking restraint zones that extend along the top of opening wide.
14. an one-way valve element that is used for storage bag comprises:
Bottom, described bottom has the aperture that is arranged at wherein;
Top layer, described top layer comprises elastomeric material, and top layer is connected on the bottom and covers the aperture, and top layer so is connected with bottom, can expand and contractile passage so that provide between the exit point on aperture and the valve element.
15. one-way valve element as claimed in claim 14 is round-shaped comprising the valve element of bottom and top layer basically.
16. storage bag as claimed in claim 14, wherein elastomeric material is selected from following one group of material, and described this group material comprises rubber, TPE (thermoplastic elastomer), TPU (thermoplastic polyurethane rubber), LDPE (low density polyethylene (LDPE)) and plasticized PVC (polyvinylchloride).
17. storage bag as claimed in claim 14, wherein to have modulus of elasticity be at 0.01-0.20GPa (1500-30000 pound/inch to elastomeric material
2) between.
18. storage bag as claimed in claim 14 also comprises a sealing member, described sealing member is between bottom and top layer.
19. storage bag as claimed in claim 18, wherein sealing member has circular substantially, discoid shape.
20. storage bag as claimed in claim 18, wherein sealing member comprises a kind of material selected from following one group of material, and described this group material comprises rubber, silaatic, thermoplastic plastic, TPE (thermoplastic elastomer), TPU (thermoplastic polyurethane rubber), LDPE (low density polyethylene (LDPE)), plasticized PVC (polyvinylchloride), hydrocarbon gels and gel adhesive.
21. one-way valve element as claimed in claim 14, wherein bottom is connected by adhesion agent with top layer.
22. one-way valve element as claimed in claim 14, wherein bottom comprises the flexible thermoplastic material.
23. one-way valve element as claimed in claim 14 also comprises an adhesive layer and peels off backing that above-mentioned adhesive layer is arranged on bottom and the top layer facing surfaces, and the above-mentioned backing of peeling off is superimposed upon on the adhesive layer.
24. the method that storage bag is found time comprises:
Bag is provided, described bag comprises flexible side walls, opening and one-way valve element, above-mentioned flexible side walls provides an internal volume, and above-mentioned opening is used to enter internal volume, and above-mentioned one-way valve element is made and is attached at one and passes the top, aperture that sidewall is provided with elastomeric material;
Closing any opening;
Make a part of one-way valve element with respect to sidewall and aperture displacement, so that expose the aperture;
Pass the air in the aperture discharging internal volume; With
Cover the aperture with the unit valve element.
25. an one-way valve element comprises:
The valve body of rigidity substantially, described valve body comprises a sidewall, this sidewall has a cavity that is arranged at wherein; With
Gel-like material, described gel-like material remains in the cavity, and stops up cavity usually.
26. one-way valve element as claimed in claim 25, wherein the rigidity valve body comprises base part, and described base part is connected on first end of tubular sidewall, and closed cavities partly, and base part has passes the aperture that cavity is provided with.
27. one-way valve element as claimed in claim 26, wherein the rigidity valve body comprises a plurality of fingers at the second end place of tubular sidewall, and described finger partly crosses cavity and extends.
28. one-way valve element as claimed in claim 25, wherein gel-like material is selected from this group material that comprises hydrocarbon gels and gel adhesive.
29. a flexible storage bags comprises:
The first side wall, described the first side wall is made with flexible thermoplastic material;
Second sidewall, described second sidewall is made with flexible thermoplastic material, superposes and is connected on the first side wall, so that the internal volume that can enter by opening is provided; With
One-way valve element, described one-way valve element comprises the rigidity valve body, this rigidity valve body provides a cavity, and displaceable gel-like material remains in the cavity, one-way valve element be attached on the first side wall be substantially pass hole that the first side wall is provided with above.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US86984206P | 2006-12-13 | 2006-12-13 | |
| US60/869,842 | 2006-12-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101557989A true CN101557989A (en) | 2009-10-14 |
Family
ID=39536948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA200780045967XA Pending CN101557989A (en) | 2006-12-13 | 2007-11-29 | Valve element |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20100242407A1 (en) |
| CN (1) | CN101557989A (en) |
| AU (1) | AU2007334214A1 (en) |
| CA (1) | CA2670007A1 (en) |
| WO (1) | WO2008076605A2 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009042848A1 (en) * | 2007-09-28 | 2009-04-02 | The Glad Products Company | Evacuable storage bag |
| JP5628906B2 (en) * | 2009-06-04 | 2014-11-19 | エイブリィ デニソン コーポレーション | Heat and / or steam operated valves, packages, intermediate package assemblies with valves, and methods of making valves |
| US20130139472A1 (en) * | 2010-03-18 | 2013-06-06 | The Glad Products Company | Method of using a vacuum storage system |
| KR101199894B1 (en) * | 2010-06-16 | 2012-11-09 | 주식회사 롤팩 | Vacuum valve and method of producing the same |
| ITVR20110215A1 (en) * | 2011-12-02 | 2013-06-03 | Plastar Pak S R L | FLUID-HOLDING PATCH FOR VACUUM COOKING |
| GB2564089A (en) * | 2017-05-31 | 2019-01-09 | British American Tobacco Investments Ltd | A tobacco industry product package and an apparatus and method for sealing a gas flow region of a wrapped bundle of tobacco industry products |
| US10935149B2 (en) * | 2018-03-15 | 2021-03-02 | University Of Washington | Temperature-actuated valve, fluidic device, and related methods of use |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4615361A (en) * | 1985-01-11 | 1986-10-07 | Bartle Sr David C | Evacuating pump |
| US6408872B1 (en) * | 1993-12-15 | 2002-06-25 | New West Products, Inc. | Evacuable container having one-way valve with filter element |
| US5480030A (en) * | 1993-12-15 | 1996-01-02 | New West Products, Inc. | Reusable, evacuable enclosure for storage of clothing and the like |
| US5893461A (en) * | 1997-04-07 | 1999-04-13 | Fres-Co System Usa, Inc. | Pressure vacuum release hermetic valve for flexible packages |
| US6581641B2 (en) * | 2001-04-05 | 2003-06-24 | Illinois Tool Works Inc. | One-way valve for use with vacuum pump |
| US6604634B2 (en) * | 2001-07-18 | 2003-08-12 | Fu-Long Su | Receiving bag with enhanced airtight effect |
| US7290660B2 (en) * | 2004-07-23 | 2007-11-06 | Tilman Paul A | Storage system having a disposable vacuum bag |
| US7422369B2 (en) * | 2005-01-20 | 2008-09-09 | The Glad Products Company | Storage bag with fluid separator |
| WO2009012066A2 (en) * | 2007-07-17 | 2009-01-22 | The Glad Products Company | Storage bag |
-
2007
- 2007-11-29 AU AU2007334214A patent/AU2007334214A1/en not_active Abandoned
- 2007-11-29 US US12/514,057 patent/US20100242407A1/en not_active Abandoned
- 2007-11-29 CN CNA200780045967XA patent/CN101557989A/en active Pending
- 2007-11-29 WO PCT/US2007/085917 patent/WO2008076605A2/en active Application Filing
- 2007-11-29 CA CA 2670007 patent/CA2670007A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| CA2670007A1 (en) | 2008-06-26 |
| US20100242407A1 (en) | 2010-09-30 |
| AU2007334214A1 (en) | 2008-06-26 |
| WO2008076605A3 (en) | 2008-10-02 |
| WO2008076605A2 (en) | 2008-06-26 |
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