Abstract: A filling slit is formed in a first panel of web material of a flexible pouch enclosure formed from the first panel and an opposing second panel of the web material and having a resealable closing assembly having interlocking male and female members joined to a flange. After the flexible pouch enclosure is at least partially filled with a product through an opening in the first panel of the web material that is created by the filling slit, the filling slit is closed by sealing the first panel to the flange of the resealable closing assembly.

Abstract: A weighted bag having an outer shell and a handle assembly. The outer shell has a plurality of panels and at least one of one of a pair of slots and a first end loop assembly and a second end loop assembly spaced apart from the first end loop assembly coupled to the plurality of panels. The handle assembly has a handle grasping member and a strapping assembly, the strapping assembly extending from the handle grasping member and interfacing with at least one of the pair of slots and the first and second end loop assemblies so as to couple the handle assembly to the outer shell.

Abstract: A wrist-mounted fluid dispenser includes a wristband and a dispenser pouch. The dispenser pouch includes a reservoir chamber and a dispensing nozzle. The dispenser pouch is preferably formed by bonding two sheets of material to each other. An orifice is formed between the dispensing nozzle and the reservoir chamber. A nozzle slit is formed at an end edge of the wristband. The reservoir chamber is either rolled up and inserted through the nozzle slit or sown into the wristband. The reservoir chamber is filled with a fluid solution with a syringe or hand pump equipped with hypodermic blunt needle or the like. One's hand is inserted through the wrist-mounted liquid dispenser. An end of the dispensing nozzle is folded when not used, such that the nozzle is located between the wrist and an inside surface of the wristband. A second embodiment of the wrist-mounted liquid dispenser includes a double chamber dispenser pouch.

Abstract: A fluid storage bag comprising a storage bag sealed to a collapsible quick filling and self-sealing fill tube. After partially filling the storage bag, through the fill tube, to a desired level with water or other liquid the storage bag is inverted, thereby collapsing and effectively sealing the fill tube against itself. After use, the storage bag may be re-filled, or recycled. In one example, a 4 inch wide fill tube extends at 6 inches into the storage bag, with the last 5 inches creating a funnel to a 2 inch bottom width. In other examples air or other gas may be introduced through the fill tube; and as the bag is pressurized, the fill tube collapses and seals so that the bag may serve as a flotation device, air mattress, pillow or other device.

Abstract: A pouch container generating hydrogen water is provided. A beverage containing at least water and a hydrogen generating substance that reacts with water to generate hydrogen gas are contained in a pouch container that is sealed. Even when hydrogen in a gas form leaks from a sealed part or the like of the pouch container to the outside, new hydrogen gas is generated by the reaction of the water and the hydrogen generating substance in the pouch container. Hydrogen water having sufficient hydrogen gas dissolved therein can be provided even after the long-term preservation. For example, the hydrogen generating substance may be contained in a straw or may be kneaded into an exterior sheet material.

Abstract: A sealing structure including a first inner layer unit, a second inner layer unit, a first outer layer unit, and a second outer layer unit is provided. The second inner layer unit and the first inner layer unit are partially connected to each other through a connection manner, so as to form a gas delivery structure that includes a plurality of first stop barriers, a plurality of second stop barriers, and a runner. The second outer layer unit and the first outer layer unit are partially connected to each other through the connection manner, so as to form a first closed pattern, a second closed pattern, a plurality of interval patterns and a plurality of non-continuous patterns. Each of the plurality of first stop barriers and each of the plurality of second stop barriers are connected to one of the plurality of interval patterns respectively.

Abstract: Systems and methods suitable for decreasing catheter-associated bacteriuria in a catheterized patient include a urinary collection system having a collection bag, a drain tube fluidically connected to the collection bag to enable emptying urine collected in the collection bag, and a flexible continuous tube formed as an integral one-piece component and fluidically connected to the collection bag to enable urine to flow into the collection bag from a patient's bladder. Catheter-associated bacteriuria may be decreased in the system by instilling a sterile acetic acid solution into the collection bag via the continuous tube, dispersing the solution in the collection bag, draining the solution from the collection bag via the drain tube, and then allowing urine to flow from the catheterized patient through the continuous tube and into the collection bag.

Abstract: Provided is a hybrid-construct bag, comprising a bag body formed by at least a first sheet, the bag body having: a substantially tubular main body portion, a first end portion, a second end portion, a valve section formed at the first end portion and configured to form the channel between the top and bottom walls which are included in the valve section, and a patch section, wherein the main body portion, first end portion and second end portion cooperatively form a cavity operable to receive contents. There are a plurality of perforations formed in the main body portion and used for allowing a gas to pass though and resisting a liquid and/or particulates to pass though. A method of forming the hybrid-construct bag is also disclosed.

Abstract: An air bag packaging arrangement adapted to have a self-adhesive checking valve includes an air bag and an air valve which is the self-adhesive checking valve. The air bag includes first and second cell overlapped layers to form an air chamber and a valve opening. The air valve includes first and second sealing films overlapped between the first and second cell layers, and a check sealing film overlapped between proximal portions of the first and second sealing films to define an air inflating channel between the first sealing film and the check sealing film, and a backflow prevention channel between the check sealing film and the second sealing film. In case of air leakage, the air is guided to flow to the backflow prevention channel for creating a supplemental air pressure to further seal and close the air inflating channel, so as to make up a deficient sealing effect of the first and second sealing films.

Abstract: An air bag packaging arrangement includes an air bag and an air valve. The air bag includes first and second cell overlapped layers to form an air chamber and a valve opening. The air valve includes first and second sealing films overlapped between the first and second cell layers, and a check sealing film overlapped between proximal portions of the first and second sealing films to define an air inflating channel between the first sealing film and the check sealing film, and a backflow prevention channel between the check sealing film and the second sealing film. In case of air leakage, the air is guided to flow to the backflow prevention channel for creating a supplemental air pressure to further seal and close the air inflating channel, so as to make up a deficient sealing effect of the first and second sealing films.

Abstract: An inflatable structure may be formed from a single piece of flexible film. The inflatable structure may include quilting seals which divide the inflatable chamber. The inflatable structure may include a one-way valve including an internal valve opening, a channel, and an external valve opening. A locator aperture positioned in the channel may be surrounded by a valve position-retention seal. A corresponding inflation device fills the inflatable structure with air and may do so without requiring heat sealing or insertion into the one-way valve. The inflation device may include a mechanical registration device configured to engage the locator aperture and position the one-way valve at a desired position with respect to an outlet of a source of pressurized air. The inflation device may detect when the inflatable structure is filled with a desired amount of air and automatically shut off the source of pressurized air.

Abstract: An inflatable structure may be formed from a single piece of flexible film using a provided method of manufacturing. The inflatable structure may include quilting seals which divide the inflatable chamber. The inflatable structure may also include an external valve opening extending through multiple layers of the flexible film. The external valve opening may further be partially defined by edge portions of the flexible film formed by folding the flexible film. The external valve opening may be configured to align with an opening in a container or an inflation aperture in a pouch so that the inflatable structure can be inflated while inside the container/pouch. A corresponding inflation device fills the inflatable structure with air and may do so without requiring heat sealing or contact between the inflatable structure and outlet of the inflation device. A hinged plate apparatus may assist in directing air into the external valve opening.

Abstract: A bag, consisting of a single-layer or multi-layer bag wall, which is bonded to form a tube (1) and, at least at one end, has a bottom (4) which is suitable for filling with charge through a filler of a bag-filling machine, is folded and bonded and is realized with a valve opening (13), and said bag wall being designed to dissolve in a moist environment thereby releasing the charge, makes complete dissolving of the bag wall (2) possible even in the region of the bottom (4) which is provided with the valve opening (13), characterized in that the bonding of the bottom (4) is effected using a dextrin adhesive.

Abstract: An apparatus and method is provided for sealing a balloon. The apparatus includes a body for placing in the balloon that is buoyant in water and which has an outer surface that can form a water-tight seal with the inside surface of the balloon. When the balloon is filled with water, the body floats to the top of the water and, if the balloon is filled sufficiently, seals against the opening of the balloon.

Abstract: There is proposed a non-self supporting type flexible package bag provided with a film-shaped one-way pouring nozzle, which is excellent in not only the non-return function and liquid cutting properties but also the pouring property of a liquid packed material as a filling material (packed material in the bag can be poured smoothly until the end). In the flexible package bag provided with the film-shaped one-way pouring nozzle protruding from a side portion, corner portion or top portion of the package bag body, a coating layer made from a water-repellent material or an oil-repellent material is provided on an outer surface of the film-shaped one-way pouring nozzle, while a wet-treated layer is provided on an inner face of a pouring path in the film-shaped one-way pouring nozzle.

Abstract: An article (101) is provided which may include a body (103) having an interior volume (113), and a collapsible inlet (105) which is in open communication with said interior volume and which is movable from a first position in which it extends from said body, to a second position in which it extends into said internal volume.

Abstract: A gas stop structure capable of repeated inflation and deflation is provided, which includes: a plurality of outer films; a gas chamber area, formed of the plurality of outer films and including a buffer portion and a gas storage portion; a gas stop valve, located between the plurality of outer films, in which a part of the gas stop valve is exposed beyond the plurality of outer films; and a warp portion, connected the buffer portion and the gas storage portion. When a gas tube is placed inside the gas stop valve to inflate the gas chamber area with gas, a height of the inflated gas storage portion is greater than that of the buffer portion to form a sectional difference, so the gas storage portion bends towards the buffer portion to seal the warp portion. After inflation, the gas tube is removed and the gas stop valve is sealed.

Abstract: A closure mechanism for a pouch includes a first interlocking closure element and a second interlocking closure element. A first closure profile is disposed on an interior side of the first interlocking closure element. A flange extends from the first closure profile and has a first aperture disposed therethrough. A resilient valve flap covers the first aperture and is attached to an exterior side of the flange. The resilient valve flap includes a sealing member and an at least partially elastomeric latch attached between a distal end of the sealing member and the exterior side of the flange. A channel is defined between the resilient valve flap and the flange that extends from the first aperture to an edge of the resilient flap. The resilient valve flap is biased to form a releasable airtight seal against the exterior side of the flange across the channel.

Abstract: There are provided a package bag capable of surely preventing stay of ambient air or the like in the package bag and intake thereinto even in the filling by handwork or the like of an operator as well as a method for filing and packing the liquid material to be packed into the package bag. A package bag is characterized by comprising a bag main body made of thin laminate films for packing, a fusion part formed at a position spaced from a bottom portion of the bag main body not forming a nozzle through fusion and extending in a widthwise direction of the bag main body, an insert port for a pipe-like filling nozzle provided in a middle portion of the fusion part, a filling part of one-way function formed between the fusion part and an opening end of the bag main body.

Abstract: A check valve includes two valve films of synthetic resin that put one on the other, and an air passage defined by two seal sections formed by means of bonding parts of the valve films together. A compression bag and air compression bag equipped with this check valve are also provided. An inlet of the air passage is defined by a straight line linking the respective upward flow side end sections of the seal sections. An outlet of the air passage is defined by a straight line linking the respective downward flow side end sections of the seal sections. In at least one of the seal sections, the valve films are not bonded together at the line of extension of the seal section, situated on the downward flow side of the downward flow side end section of the seal section.

Abstract: An automatic liquid stop bag with a bending portion comprises: two outer films, two inner films, a storage area, a discharge channel, a bent portion, an inlet, an outlet and a tear portion. The storage area is formed by coupling the two outer films by hot sealing. The two inner films are disposed between the two outer films and coupled the two inner films by heat sealing to form a discharge channel or the discharge channel is coupled to the two inner films by heat sealing and formed between the two inner films, and the internal sides of the two inner films are not coupled to form the inlet and outlet, and the tear portion is formed at an edge of the two inner films and the two outer films and separated from the two inner films to expose the outlet of the discharge channel.

Abstract: An air bag includes two inner sheets facing each other, heat resistance materials located between the two inner sheets and applied to any one inner sheet in its length direction, two outer sheets located outside the two inner sheets, a second thermal bonding line thermally bonding the inner and outer sheets along the heat resistance materials, a first thermal bonding line thermally bonding the two outer sheets with gap from the second thermal bonding line to form an air input channel, and third thermal bonding lines extending from the second thermal bonding line oppositely to the channel to form air pillars, at least two heat resistance materials being continuously formed over the pillars, an air injected through the channel being introduced into the pillars between the two inner sheets, and the two inner sheets positioned in the pillars being adhered and pressed to any one outer sheet by an inner pressure of the pillars.

Abstract: A vacuum valve device is used with a bag and has a base and a clip. The base has a tube, a clipping flange and a valve. The tube mounted through a sheet of the bag and has a central hole and at least one outlet hole. The clipping flange is formed on the tube. The valve is mounted slidably in the tube and selectively seal the at least one outlet hole. The clip is mounted detachably around the tube of the base and cooperates with the clipping flange to hermetically clip the sheet of the bag. The vacuum valve device may be reused, is economical and marketable.

Abstract: A pouch comprises a first sidewall and a second sidewall forming an interior space therebetween, a resealable closure mechanism including a first and a second elongate closure profile, and a resilient profile extending from one of the first or second closure profiles and having at least one notch extending therethrough to allow the evacuation of air from the interior space.

Abstract: An evacuable container includes a first side wall having an interior surface and an exterior surface. The first side wall includes an aperture between the interior surface and the exterior surface. A second side wall has an interior surface and an exterior surface. The second side wall is connected to the first sidewall such that the interior surfaces of the first and second side walls form an interior of the container. A sheet has a first surface and a second surface. The first surface faces the exterior surface of the first side wall. The sheet is sealingly attached to the exterior surface of the first side wall so as to form a flow chamber between the first side wall and the sheet. The sheet includes (i) a plurality of flow channels disposed on the first surface, and (ii) an aperture between the first surface and the second surface. A check valve is disposed in fluid communication with the aperture in the sheet.

Abstract: The presently disclosed subject matter is generally directed to a reclosable one-way valve. Particularly, the valve comprises two sheets of thermoplastic material sealed together in a face-to-face relationship to define a channel there between. At least one of the two sheets comprises a natural curl tendency such that the valve is movable between an open, uncoiled position and a closed, coiled position.

Abstract: A valve (20) is provided for sealing an evacuation port (16) in a port area (18) of a wall structure (12) of a container. The valve (20) comprises a casing (22) having a shell portion (30) which is deformable from an open condition, whereat the shell portion (30) forms a chamber (32) over the port area (18), and a closed condition, whereat the shell portion (30) contacts the port area (18). When the shell portion (30) is in its open condition, gas exits from the chamber (32) through gas-releasing holes (24) in the casing (22). When the shell portion (30) is deformed to its closed condition, a port-sealing adhesive (26) adheres to the port area (18) to thereby seal the evacuation port (16).

Abstract: A packaging bag for secondary packaging which allows safety transport of infectious substances is provided. Front and back surface materials are placed on top of another and formed into a bag member by heat-sealing both side edge and bottom edge portions continuously. Partitioning materials formed of a plastic sheet or film having a required size are disposed on inner surfaces of the upper ends of the front and back surface materials and attached to the front and back surface materials by heat-sealing both side edge and bottom edge portions except for an upper end edge portion to form pocket portions. A sealing material is stuck to the back surface material on the outside of the upper end portion thereof so as not to be opened. The internal pressure is received by one of the pocket portions when the internal pressure in the packaging bag is increased.

Abstract: There is disclosed an improved stand-off for large vacuum compression storage bags made from a thermoplastic material such as polyethylene or other thermoplastic material and preferably made by extrusion. The stand-off includes a base having an aperture therein for alignment with the valve of the bag. The base further includes a plurality of ribs. The stand-off may include a variety of geometries provided that it is of sufficient length and width to cover the valve area. It may extend from one side of the bag to the other side of the bag or include variations thereof in size.

Abstract: A portable and sealable waste disposal receptacle receives human waste material through an opening in an outer chamber. The waste passes through an inner chamber, which is suspended within the outer chamber, and passes through a one-way valve located at the bottom of the inner chamber into a lower chamber portion of the outer chamber. The one-way valve is fashioned from the bottom edges of the inner chamber, where a biasing strip is mounted in compression along one of the bottom edges, which causes the bottom edges of the inner chamber to be biased closed in sealing contact except when waste enters the inner chamber, the weight of which is sufficient to overcome the closing bias of the biasing strip, allowing the waste to flow into the lower chamber. Once the waste has cleared the inner chamber, the biasing member causes the bottom edges to come together in sealing contact, preventing the flow of waste back through the inner chamber.

Abstract: An inflatable structure may be formed from a single piece of flexible film. The inflatable structure may include quilting seals which divide the inflatable chamber. The inflatable structure may include a one-way valve including an internal valve opening, a channel, and an external valve opening. A locator aperture positioned in the channel may be surrounded by a valve position-retention seal. A corresponding inflation device fills the inflatable structure with air and may do so without requiring heat sealing or insertion into the one-way valve. The inflation device may include a mechanical registration device configured to engage the locator aperture and position the one-way valve at a desired position with respect to an outlet of a source of pressurized air. The inflation device may detect when the inflatable structure is filled with a desired amount of air and automatically shut off the source of pressurized air.

Abstract: A storage system comprising: an evacuable and reclosable bag comprising a wall made of a flexible material and a one-way valve attached to said wall of said bag; a container having walls made of a material less flexible than the flexible material; and an attachment device that attaches the bag to the container such that at least a portion of the bag resides within the container. To use this storage system, compressible articles are placed inside the evacuable bag. Then the bag is hermetically sealed and evacuated. During evacuation, the shape of the compressible articles inside the bag conform to the shape of the container interior volume. In one embodiment, when the bag with compressed articles is removed from the container, its shape facilitates stacking. In another embodiment, the storage bag with compressed articles remains inside the container.

Abstract: A consumer textile soft goods product for retail sale includes a vacuum-resealable bag and one or more textile soft goods located therein. The vacuum-resealable bag includes air impermeable walls, a one-way valve assembly, and a closure mechanism. The vacuum-resealable bag is configured to maintain a vacuum condition therein when the closure mechanism seals the vacuum-resealable bag and air is evacuated through the one-way valve assembly. A pressure differential preferably maintains the textile soft goods for retail sale in a compressed condition within the vacuum-sealable bag, and the vacuum-sealable bag preferably is located within retail packaging. Furthermore, the vacuum-resealable bag preferably is configured to be opened and then reclosed such that the vacuum-resealable bag is reusable by a consumer for vacuum-packing compressible items after the one or more textile soft goods have been removed from the interior space of the vacuum-resealable bag post purchase.

Abstract: In the pouch of the present invention in which a pouring spout is formed by means of a heat-sealed part and a non-heat-sealed part by heat sealing plastic films, the inside surfaces of the films that form the portion of the boundary area between the heat-sealed part and non-heat-sealed part of the pouring spout passage on the side of the non-heat-sealed part contact each other so that no gaps are left in a closed state. Accordingly, even if the pouch is suspended with the pouring spout down following the opening of the pouring spout, the leakage of the contents such as a liquid or the like accommodated in the interior of the pouch from the pouring spout a small amount at a time can be securely prevented.

Abstract: The flexible storage bag includes overlaying first and second sidewalls defining an internal volume that can be accessed from an open top edge. To evacuate air from the internal volume after the open top edge has been closed, the bag includes a one-way valve element attached to the first sidewall and communicating with the internal volume. To prevent the one-way valve element from becoming clogged by the opposing second sidewall, the bag also includes a clearance member that maintains at least a partial clearance between the first and second sidewalls proximate the valve element. The clearance member can take many forms such as a textured portion on the second sidewall that includes evacuation passages which provide air in the internal volume access to the valve element, a permeable element covering the valve element, and a rigid or compressible structure that spaces the second sidewall from the valve element.

Abstract: A deaeration valve comprising two valve films 11, 12 of synthetic resin that put one on the other, having an air passage 2 defined by two seal sections 21, 22 formed by means of bonding parts of the valve films together, wherein the inlet 2a of the air passage 2 is defined by the straight line linking the respective upward flow side end sections 21a, 221a of the seal sections 21, 22; the outlet 2b of the air passage is defined by the straight line linking the respective downward flow side end sections 21b, 223b of the seal sections 21, 22; and in at least one of the seal sections 21, 22, the valve films 11, 12 are not bonded together at the line of extension 21c, 223c of the seal section 21, 22, situated on the downward flow side of the downward flow side end section 21b, 223b of the seal section 21, 22.

Abstract: In a multi-sectional air enclosure, an air filling passageway is formed between two outer films folded together and in the meantime, a plurality of air cylinders are formed by adhering the two outer films to each other by means of hot sealing, each air cylinder is adhered to form into a plurality of air chambers in series by means of hot sealing. Furthermore, air inlets are formed between the inner film and the outer film to communicate the air filling passageway with the air cylinders, and a plurality of air passageways are formed to connect to the air inlets. Besides, each air passageway is connected to a plurality of branch air passageways, and an opening is disposed at the end of each branch air passageway.

Abstract: An inflatable pneumatic bag includes two outer films up-down stacked, and two inner films located between them. By thermal-sealing means, an interval line is formed between upsides and downsides of the two inner films, while a pneumatic passage is formed between the upsides of the two inner films and the interval line. Air tubes are formed between downsides of the two outer films and the interval line, while the two inner films are bonded at the interval line to form air ingress for connecting through the pneumatic passage and the air tube. After thermal-sealing upsides of the two outer films and the interval line, a buffer space is formed between the outer films and the two films. When the air of the air tube is leaking to the buffer space, the air of the buffer space will press the inner films to seal the pneumatic passage and prevent from leaking.

Abstract: A valve (20) is provided for sealing an evacuation port (16) in a port area (18) of a wall structure (12) of a container. The valve (20) comprises a casing (22) having a shell portion (30) which is deformable from an open condition, whereat the shell portion (30) forms a chamber (32) over the port area (18), and a closed condition, whereat the shell portion (30) contacts the port area (18). When the shell portion (30) is in its open condition, gas exits from the chamber (32) through gas-releasing holes (24) in the casing (22). When the shell portion (30) is deformed to its closed condition, a port-sealing adhesive (26) adheres to the port area (18) to thereby seal the evacuation port (16).

Abstract: A flexible container (1) for holding a liquid including two walls (10, 11) made of a flexible material, the free overlaying edges of said walls being assembled together by a weld or an adhesive seam (12), so as to define an inner sealed volume of said container, the two said walls also defining a spout (13) designed to protrude outwards from a peripheral portion of the container, and an outflow channel (130) connecting said spout with said inner volume of said container, characterized in that one or several obstacles (14, 14?) formed by welding or bonding together the two walls is or are located in said inner volume substantially opposite and in the vicinity of the channel (130) leading to the spout (13) in such a manner as to limit the section of the passage available for the liquid between the inner volume and the outflow channel, while leaving open at least one narrowed passage (140, 141, 146) and in such a manner that a portion of the surface including the spout is deflected, this portion of the surface b

Abstract: A flexible container for holding a liquid includes two walls made of a flexible material, the free overlaying edges of the walls being assembled together by a weld or an adhesive seam so as to define an inner sealed volume of the container. The two walls also define a spout designed to protrude outwards from a peripheral portion of the container, and an outflow channel connects the spout with the inner volume of the container. One or several obstacles are formed by welding or bonding together the two walls in the inner volume, substantially opposite from and in the vicinity of, the channel leading to the spout in such a manner as to limit the section of the passage available for the liquid between the inner volume and the outflow channel. One narrowed passage is left open in such a manner that a portion of the surface including the spout is deflected. This portion of the surface is substantially defined by the obstacle(s) and by folds directed substantially transverse with respect to the obstacles.

Abstract: A closure mechanism for a pouch includes a first interlocking closure element and a second interlocking closure element. A closure profile is disposed on an interior side of the first interlocking closure element. A flange extends from the closure profile and an aperture is disposed therethrough. A resilient valve flap is disposed over the aperture and attached to an exterior side of the flange. A channel is defined by an area of non-attachment of the resilient valve flap to the flange that extends from the aperture to an edge of the resilient valve flap. The resilient valve flap is biased to form a releasable airtight seal in the area of non-attachment of the resilient valve flap to the flange.

Abstract: The self-sealing bag comprises a thin, flexible polyethylene bag having a tapered neck. The bag may include indents in the neck to help hold a filling nozzle. A tapered nozzle is inserted into the tapered neck to fill the bag. An alternative tapered nozzle can have two conduits to permit simultaneous filling and air bleeding. As the bag is filled, the sides expand, and the expanded sides exert pressure on the bag sides at the tapered neck to force the bag sides together and thereby seal the bag.

Abstract: An air filling bag with an outer film strengthening structure includes two outer films and a main check valve, where the two outer films are adhered to each other to form an air chamber by means of hot sealing, in which each outer film includes the first film sheet and the second film sheet stacked together, and a plurality of first hot sealing lines is formed by adhering the first film sheet to the second film sheet by means of hot sealing in a first direction together with a plurality of second hot sealing lines formed by adhering the first film sheet to the second film sheet by means of hot sealing in a second direction. The main check valve is positioned between the two outer films and one end thereof projects from the air chamber. Air in the air chamber can compress the main check valve to shield a first air passageway of the main check valve so as to prevent air from leaking out of the air chamber after outside air flows in the air chamber via the first air passageway.

Abstract: A structure of an air passage of a sealable bag is provided wherein bag sheets 11, 12 and a valve body sheet 31 layered between the bag sheets 11, 12 are used. The valve body sheet 31 comprises a front piece 31a and a rear piece 31b, and a air passing space is formed between the front bag sheet 11 and the front piece 31a, as well as between the rear bag sheet 12 and the rear piece 31b, while a dead-end space is formed between the front piece 31a and the rear piece 31b. In said valve body, at one side based on the direction of flow of air in the air passage 3, said dead-end space is closed by said front piece 31a and rear piece 31b that are joined together, while on the other side, said dead-end space is opened by said front piece 31a and the rear piece 31b that are separated from each other.

Abstract: A compression bag includes longitudinally continuous sheets continuously supplied in a longitudinal direction to lie one upon another, and adhered at predetermined spots to form an article containing portion having a space for an article and an air passageway having a space continuing to the space of the article containing portion. The sheets include a frontal sheet, a rear sheet which is equal to the frontal sheet in breadth (i.e., the transverse side dimension of the sheets), at least one valve body sheet disposed between the frontal and rear sheets and made smaller than the front and rear sheets in breadth, and base members disposed between at least one of the frontal and rear sheets and the valve body sheet and made smaller than the valve body sheet in breadth.

Abstract: The flexible storage bag includes overlaying first and second sidewalls defining an internal volume that can be accessed from an open top edge. To evacuate air from the internal volume after the open top edge has been closed, the bag includes a one-way valve element attached to the first sidewall and communicating with the internal volume. To prevent the one-way valve element from becoming clogged by the opposing second sidewall, the bag also includes a textured portion that maintains at least a partial clearance between the first and second sidewalls proximate the valve element. To prevent contamination of the valve element, the textured portion can also be configured to facilitate removal of liquids and juices from air exhausting from the storage bag.

Abstract: The subject of the invention is a package comprising at least two sheets (2, 3) and two flexible films (10a, 10b) placed between them and welded to the sheets (2, 3) by the welds (11a, 11b) respectively, and welded together and to the sheets (2, 3) by the welds (12a, 12b), at least one of the two films being folded over the other at that end of the films on the opposite side to the welds (11a, 11b). The subject of the invention is also a method for manufacturing such a package. The invention makes it possible to obtain a package of simplified structure and simplified manufacture.

Abstract: Provided is a valve element for venting fluids, such as gas or liquids, entrapped in a packaging enclosure. The valve element includes a base element having an aperture disposed through it and a membrane having a protruding raised portion. The membrane is attached to and overlays the base element. The raised portion is selectively configurable between a concave position and a convex position by applying an external force against the apex of the raised portion. When configured in the convex position, the raised portion is spaced apart from the aperture allowing fluid communication therethrough. When configured in the concave position, the raised portion obstructs the aperture preventing fluid communication therethrough. To vent air passing through the aperture into the environment, an expandable channel for providing a clearance is provided between the membrane and the base element.

Abstract: An air valve for a poly bag that permits the escape of air from the bag as it is filled by a filling tube. The air valve consists of a plurality of slitted openings in one top corner of the bag and a valve flap mounted in the poly bag near the slitted openings that closes and seals the openings as filling material engages and moves the flap.