Abstract: A packaging device including a breathable or non-breathable, microwavable composite film structure in the form of a bag, a tray or other type of container is disclosed. The device may include atmospheric control attributes in the form of microperforations, and steam venting mechanisms in the form of precision cuts or channels. The microperforations may form atmospheric conditions within the device for the storage of perishable and/or respiring food products, and the steam venting mechanisms may regulate the pressure and/or heat within the device during microwave cooking of the food products within.

Abstract: A package or container is disclosed that includes an opening device in conjunction with a self-sealing valve for facilitating opening of the package and for dispensing fluids in a controlled manner. In one embodiment, the opening device can comprise a breachable bubble. The breachable bubble can be in communication with a fluid channel that operates in conjunction with the self-sealing valve. The package can include a folded portion for sealing the fluid channel and allowing the bubble to be breached when a user applies pressure. Once the bubble is breached, the folded portion can be unfolded for dispensing a fluid.

Abstract: A sealable enclosure is disclosed that is configured to enclose an object that is to be heated, wherein heating of the sealable enclosure with the object sealed therein permits gas generated by the heating to vent out through a first micro-perforation portion disposed in a fold of film layer. Initially, the generated gas is retained in the sealable enclosure. When the temperature of the strip of heat sensitive adhesive reaches a threshold temperature, the strip of heat sensitive adhesive releases so that fold opens, wherein the gas vents through the micro-perforation portion disposed in the film layer out into an ambient region surrounding the sealable enclosure while preventing ambient contaminates in the ambient region from entering into the sealable enclosure.

Abstract: A sealable enclosure is disclosed that is configured to enclose an object that is to be heated, wherein heating of the sealable enclosure with the object sealed therein permits gas generated by the heating to vent out through a first micro-pore portion disposed in a fold of film layer. Initially, the generated gas is retained in the sealable enclosure. When the temperature of the strip of heat sensitive adhesive reaches a threshold temperature, the strip of heat sensitive adhesive releases so that fold opens, wherein the gas vents through the micro-pore portion disposed in the film layer out into an ambient region surrounding the sealable enclosure while preventing ambient contaminates in the ambient region from entering into the sealable enclosure.

Abstract: Provided herein is a degassing valve for a dry consumer product (e.g., a dry foodstuff, a cannabis-containing medicinal or recreational product, etc.) that has an enticing or pleasant aroma. Such a valve includes a valve body, a one-way valve element positioned on the valve body, and, preferably, a filter associated with said valve body wherein the filter is configured to facilitate the passage of a gas. The gas may be selected from the group consisting of air, carbon dioxide, oxygen, nitrogen, and methane, or mixtures thereof. Additionally, the gas contains one or more aroma-conferring volatile molecule species responsible for the aroma characteristic of the product. The filter of the valve body may include activated charcoal, an activated charcoal mixture or a combination thereof.

Abstract: A one-way valve is disclosed, particularly for foodstuff packages, the valve designed to be mounted on a package and arranged to open in response to an excess pressure inside said package. The valve includes an aperture formed in the package material. On top of the aperture an adhesive layer is arranged. The adhesive layer is arranged in such a manner that the valve, upon opening, exhibits a pre-defined channel allowing passage-through.

Abstract: Provided are a steam release standing pouch, which has a structure in which the sealing portion is reliably peeled, and a content sealing standing pouch formed using the pouch. The steam release standing pouch has a first vapor passage portion. The distance between the inner edge of the tip of the vapor passage portion and the center of maximum expansion, which is the center of the portion where expansion is expected to be maximal, is shorter than either the distance between the inner edge of the first upper side portion and the center of maximum expansion or the distance between the inner edge of the first intermediate side portion and the center of maximum expansion.

Abstract: A packaging bag having a steam venting function capable of releasing pressure inside a package even when heating cooking is performed by a microwave oven and preventing the inside of the bag from being contaminated and the package using the packaging bag. The packaging bag includes two pieces of front and back main body films having sealant layers which are opposed to each other with the sealant layers facing inward, side seal parts, and a bottom seal part. The front body film is folded in the vicinity of the bottom seal part throughout the entire width of the bag and parallel with the bottom seal part to form a fold-in part. A steam venting port is formed in the fold-in part, and an easily peelable tape covering the steam venting port is disposed on the inside of the fold-in part throughout the width of the bag and parallel with the fold-in part, and then heat-sealed.

Abstract: A multilayer film comprising a valve is described. The multilayer film comprises an exterior layer and an interior layer. The interior layer comprises at least one aperture extending through the interior layer. A bonded portion and a non-bonded portion are between the interior layer and the exterior layer. The non-bonded portion comprises at least one channel and at least one passage. The at least one channel intersects the at least one passage at an angle greater than 0 degrees and less than 180 degrees, in one embodiment, the valve comprises the at least one aperture, the at least one channel and the at least one passage and provides for fluid communication from an outer surface of the interior layer to an atmosphere external to the multilayer film. The multilayer film may be provided as a web and may be used to form a variety of packages. Methods of manufacturing the film and methods of forming packages are also described.

Abstract: In a reclosable bag (20) a zipper (Z) is provided on the inner surfaces (50) of the plastic film and the two parts of the zipper (Z) are fixed on the opposite inner surfaces (50) of the bag (20), wherein the zipper (Z) is connected to the inner surface (50) of the plastic film in such a manner that between the welded regions (12, 14) between the zipper (Z) and the inner surface (50) of the plastic film, recesses (15, 13) are left free in the longitudinal direction of the zipper (Z) to form a seal-free longitudinal channel and in the transverse direction of the zipper (Z) to produce free air or steam passage openings at defined distances between the zipper (Z) and the inner surface (50), through which openings a passage of steam is possible, wherein ends of the openings facing the interior (60) of the bag (20) are larger than ends of the openings facing the exterior (70) of the bag (20).

Abstract: Bag for containing liquid products which produce gas, in particular yeast, of the double wall type, includes two opposite faces (2) joined one to the other along a perimeter heat-sealing line (3) and a spout (7) for delivering the liquid product placed on one of these faces (2), the double wall of the bag including a high permeability inner film (5) and a reinforcing outer film (6), wherein at least in the upper part of each of the two opposite faces (2) of the bag (1), between the inner film (5) and the outer film (6) at least one spacer element (10) is provided, attached to the outer film (6) at one at least opening (19) formed therein and provided with holes (17) for the release of the gases which permeate through the inner film (5).

Abstract: A heatable package bag includes two sheets of outer film, a plurality of projections, a plurality of guiding channels and a plurality of pre-breakage portions, where the two sheets of outer film includes a plurality of inner surfaces, a storage space is formed among the plurality of inner surfaces, adapted to receive an article; the plurality of projections is positioned on the plurality of inner surfaces, adapted to support the surface of the article; the guiding channels are positioned among the projections, the air in the storage space flows along the guiding channels; and the pre-breakage portions are positioned on the guiding channels. The air in the storage space is expanded to compress the two sheets of outer film during heating, and the plurality of pre-breakage portions is broken, allowing the air to flow out of the storage space via the plurality of pre-breakage portions.

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 one-way valve is mounted over a vent hole in a flexible package to enable gases to vent. The valve has a flexible base layer, a flexible cover layer and an interposed layer of oil. Each layer has an opposed pair of side edges. The cover layer is thinner than the base layer and is secured to the base layer along respective contiguous portions of the side edges to form an openable channel. The oil layer is located in the channel between the base layer and the cover layer and over the hole to form a bond holding the cover layer on the base layer until pressure within the package causes the bond to break, whereupon the cover layer to lift ups and opens the hole valve. Methods of making the package and valve are also disclosed.

Abstract: At least one of an obverse surface film and reverse surface film, which are used to together constitute a plastic pouch, is folded back across the entire width of the plastic pouch, and peripheral edge portions of the pouch are heat-sealed, to thereby form, on at least one position, a folded-back section communicating with the body of the pouch.

Abstract: An infusion bag according to one exemplary embodiment includes a body having an interior space for holding a fluid. The interior space is defined by a pair of side walls and an inner wall and an opposite bottom wall. The inner wall extends across the body from one side wall to the other side wall such that a first angle ?1 is formed between a first end of the inner wall and one side wall and a second angle ?2 is formed between a second end of the inner wall and the other side wall. The first angle is different from the second angle. The bag also includes a needleless port that is in fluid communication with the interior and is configured to sealingly mate with an external device. The needleless port is disposed in an upper corner of the body.

Abstract: A reclosable fastener having a one-way valve interposed between first and second sets of interlocking members permits fluid flow in one direction through the fastener and blocks fluid flow in an opposite direction through the fastener.

Abstract: A reclosable pouch includes first and second film layers disposed on a first pouch sidewall. The first film layer is attached to the second film layer by first and second intermittent spot seals disposed at least across respective first and second edges of the first film layer. The second film layer is sealed to the sidewall by third and fourth intermittent spot seals disposed across at least across respective third and fourth edges of the second film layer. Offset first and second apertures extend through the first and second film layers, respectively, wherein one of the first and second apertures communicates with a pouch interior and the other of the first and second apertures communicates with a pouch exterior. A fifth intermittent spot seal is disposed between the first and second film layers, the fifth intermittent spot seal surrounding a region including the first and second apertures.

Abstract: A reclosable fastener having a one-way valve interposed between first and second sets of interlocking members permits fluid flow in one direction through the fastener and blocks fluid flow in an opposite direction through the fastener.

Abstract: A packaging with improved reclosable opening is disclosed having a packaging body. The packaging body has an upper front main packaging sheet; a lower front main packaging sheet and a back main packaging sheet which are sealed together to form an edge-to-edge sealing. A reclosable opening is provided for inserting objects into the packaging. A diverting is means predisposed in such a manner and has a dimension sufficient to cover the reclosable opening to direct airflow away from the reclosable opening when there is an increase in internal air pressure. A weakened sealing is formed at a part of the edge-to-edge sealing wherein the weakened sealing ruptures when the increase in internal air pressure has build up to a critical point. When increased internal air pressure has build up to a critical point, the weakened sealing ruptures to allow air to vent through. The critical point is reached when the internal pressure is greater than external pressure to a sufficient extent to rupture the weakened sealing.

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.

Abstract: A packaging material is provided that can provide a packaging bag or container cover in which the contents is shielded from the atmosphere and tightly sealed, a small hole is formed in the appropriate locations, without special processing of the heat seal portion, and the internal pressure is maintained with high stability at a level above the normal pressure. The packaging material is suitable, for example, for heating in a microwave oven. The packaging material uses a film in which a heat sealing agent (4) with a low melting point is applied to a prescribed zone of an oriented film (2) made of a synthetic resin, a cutting line (5) is cut in the oriented film (2) made of a synthetic resin in the form of a solid or broken line passing through the zone coated with the heat sealing agent (4), and a cast film (3) made of a synthetic resin and having heat sealing properties is affixed to the oriented film (2) made of a synthetic resin. Such film is used for a packaging bag (1) or a container cover.

Abstract: A storage bag for food products with a venting structure to expel excess air trapped inside the bag after the bag has been closed or sealed. After the excess air is removed, the venting structure is covered and sealed to prevent air from re-entering the bag or other objects from entering the bag.

Abstract: Packaging container, packaged food and packaged feed, with the packaging container being produced by: preparing a hole-sealing sheet by providing, on a back surface of a base material whose bending strength (S) represented by the following formula (A) is no less than 0.20 m3/N, a pressure sensitive adhesive layer whose vertical peeling strength at 40° C., with respect to a surface of the gas-impermeable container, is in the range of 0.3-2 N/cm; and sealing a vent hole in the gas-impermeable container by the hole-sealing sheet. Packaged food and feed are obtained by enclosing food and feed in the packaging container. S=L/W(m3/N)  (A) wherein L: Critical length measured by a Clark degree testing machine (m) W: Weight per 1 m2 of the sheet base material (N/m2).

Abstract: A reclosable bag has a bag body and a reclosable, zipper-type closure. The reclosable closure has extruded male and female interlocking profiles extending along opposing sides of an opening of the bag and are constructed to releasably interlock. The closure also has an extruded valve flange extending from one side of the closure to engage an opposing surface of the closure when the profiles are interlocked. The flange and opposing surface are constructed to separate in response to pressure within the bag for venting the bag with the profiles interlocked, and to increase a contact pressure therebetween in response to presence of a vacuum in the bag. The closure also defines a vent passage extending from an air space between the opposing sides of the opening and between the interlocking profiles and the valve flange.

Abstract: The metal-air battery includes an air mover mechanism located in the cathode plenum space of one or more metal-air cells. The air mover is an enclosure isolating the air cathode, with a mechanism for expanding and contracting the volume of the enclosure to move air in and out of the enclosure. Prismatic and cylindrical batteries incorporating the invention are described.

Abstract: A container is used to store fine particles such as bakery flour in a sealed packaging, wherein air in the container, such as air entrapped during filling, can be expelled through compression without loss of fine particles. The container includes a main body forming a pouch which terminates in a principal opening and is fabricated from an imperforate flexible material such as clear plastic film. A sealing mechanism is attached to the pouch for sealing the pouch, and a multiplicity of microscopic pores extend through the flexible material. Each pore has a dimension ranging from 10 to 150 .mu.m sufficient to permit air to exit through an exit port, but to prevent the fine particles from escaping through the pores. At least a portion of the pouch material has an anti-slip surface with an external coefficient of friction ranging from about 0.4 to 0.5.

Abstract: The present invention is a container for storing fine particles such as bakery flour in a sealed packaging, wherein air in the container such as entrapped during filling can be expelled through compression without loss of the fine particles. The container comprises a main body forming a pouch, terminating in a principal opening, fabricated from an imperforate flexible material such as clear plastic film, a sealing mechanism attached to the pouch for sealing the pouch, and a multiplicity of microscopic pores extending through the flexible material having a dimension ranging from 10 to 150 .mu.m) sufficient to permit air to exit through the exit port, but to prevent the fine particles from escaping through the pores.

Abstract: Multi-walled paper sacks for powder products, notably plaster, have a porous paper inner wall surrounded by a paper outer wall and a vapour barrier separate from the paper inner wall. The vapour barrier may be a coating on the inside face of the outer paper wall. Perforations through the vapour barrier are substantially confined to either or both of the broad faces of the sack. During filling of the sacks air is able to vent through the inner wall and then through the perforations in the vapour barrier, allowing filling by high speed machinery. Deterioration of the product as a result of moisture perforation is unexpectedly just as good, and sometimes superior, to that encountered with alternative sacks. Consequently the improvement in filling is not encumbered by a reduction in shelf life of the product.

Abstract: A first ice making bag (110) comprises a first envelope (112) which comprises a first envelope top (112T) and a first envelope bottom (112B). The first ice making bag (110) further comprises a first binding (114) which comprises a first peripheral binding (114A). A first left peripheral opening binding (114AL), and a first right peripheral opening binding (114AR). The first left peripheral opening binding (114AL) and the first right peripheral opening binding (114AR) form a gap therebetween. The first binding (114) functions to form a pocket between the first envelope top (112T) and the first envelope bottom (112B). The first ice making bag (110) further comprises at least one first opening binding (114B) forming an air channel between the first left peripheral opening binding (114AL) or the first right peripheral opening binding (114AR) and the at least one first opening binding (114B).

Abstract: A valve for controlling a port in an air bag comprises a circular valve disk secured over the port. The disk has a circular mounting ring. Flexible valve elements extend radially inwardly from the ring. Each valve element is in the form of a wedge-shaped leaf with opposite side edges tapering radially inwardly to a point at the center of the ring. The valve is closed when the side edges of adjacent leaves are in contact. When the air bag deploys, the pressure of air in the bag flexes the leaves outwardly to open the valve.

Abstract: A foldable bag material is formed into a bag having at least one end with a corner and having an end closure formed by the bag material which closes off the one end of the bag. A filter valve tube extends within the end closure at the one corner, the tube having an inner end disposed within the interior of the bag such that the tube is adapted to receive a filler nozzle of a pneumatic filling device for filling the bag with a filling material. The tube has an inner end portion and an outer end portion, the inner end portion having a cross-sectional contraction which is contracted relative to the outer end portion such that the contracted inner end portion forms a seal with the filler nozzle, the tube being made at least partially of a filter material which is gas-permeable but which retains the filling material such that the gas-permeable material provides for venting of the bag during filling.

Abstract: A water container comprises a bag body formed of a flexible material and a stopper means formed of a synthetic thin resin film. The stopper means is in the tubular form provided with a water inlet opening and a valve opening as well as a belt-like sealing on a portion except for the openings, and is attached into the bag body in such a manner that the inlet opening is open on the bag body and other portion is located within the bag body.The valve opening is smaller in size than the inlet opening, and is positioned on a line extending from at least a portion of the sealing.

Abstract: A combination anti-reflux valve and gas venting device for use in a urinary drainage bag is described. In the preferred embodiment, the device is made of a flapper valve having a gas venting portion inside the urinary drainage bag. The flapper valve is connected to a gas venting connector means for passage of gas between the outside and inside connector means.

Abstract: A valve which is to be used as a component of plastics bags and trays for packaging foodstuffs and other perishable goods. The valve consists essentially of a small spherical chamber having an inlet and an outlet. The chamber is made from two hemi-spherical walls having different resilience. In order to close the valve one wall is made to spring into contact with the other wall so that the two walls enter into such close intimate contact that communication between the inlet and the outlet through the valve is prevented.

Abstract: A thermoplastic shipping bag having a thermoplastic inner ply comprising a mesh which permits the packaging of finely powdered materials without releasing unacceptable levels of powders to the atmosphere during or after filling and without requiring significant modification to packaging systems used to fill and process multi-wall paper shipping bags.

Abstract: A sack is constructed from a thermoplastic film of which the side portions are brought into partial overlapping relationship to define a tube section and top and bottom weld seams are applied transversely. A longitudinal weld seam applied within the confines of the region of overlap terminates at a spacing from the top weld seam to define a filling valve passage. The region of overlap contains a longitudinal inner strip of reduced thickness made in one piece with the walls of the sack.

Abstract: The invention provides a container preferably made from sheet plastics comprising a bag containing a tubular valve member, the bag being sealed with a seam at each end, the top seal having an opening therein for entry of an access tube into the valve member, and the valve member having a sealing seam which facilitates piercing of the access tube through the valve member into the bag. A second bag may be provided within the first bag.

Abstract: A valve bag and an interconnected series of valve bags is disclosed which have alignment means on the bag. This is shown as a continuous tunnel along a first edge of the interconnected bags for guidance into an automatic bag filling machine, for example, onto a mandrel threading the tunnel. Each bag has a valve formed by overlapping portions of panels of one wall of a bag. Parts of the overlapping portions are sealed together and other parts are left open between two valve side edge lines to form a valve from the overlapping material.

Abstract: A plastic bag provided with a filling valve and a gas permeable dust filtering pocket opposite said valve, allowing gas to escape from the interior of the bag.A disconnectable spot adhesive connection exists between a layer of said pocket and the adjacent bag wall parts opposite a corner flap. An additional adhesive or welding connection may be present near the free end of the pocket for connecting the layer with the bottom flaps.