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Specified seam structure

Subclass of:

383 - Flexible bags

383105000 - WALL DETAILS

Patent class list (only not empty are listed)

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Class / Patent application numberDescriptionNumber of patent applications / Date published
383107000 Specified seam structure 29
20090028471TRI-FOLD SIDE SEAMED PLASTIC PRODUCE BAG, METHOD AND APPARATUS FOR MAKING SAME - A trifold side seamed plastic produce bag includes a front wall and a taller back wall, first and second side edges sealed together and a seamless bag bottom. The taller back wall provides means for finding the bag opening. The bag is joined at the side edges to additional bags by a perforation. The bag is corona treated on at least one wall and promotional material is printed on the treated surface. The bags are folded to one third of their height to fit compact bag roll dispensers. The bags are folded in a Z-fold or C-fold configuration. The method and apparatus for producing the bags includes a slitter that removes a strip of plastic from only the top layer of the bag stream to form an extended flap on each bag. The method includes manufacturing the bags and winding them onto cores or forming the bags into coreless rolls.01-29-2009
20100008604Bag suitable for carrying groceries and system comprising same - A bag comprises a body including bottom and opposing sidewalls. The walls are made from a woven fabric material. The sidewalls and the bottom wall form a grocery receiving cavity having a closed bottom end portion and an open top end portion. Sewn-in edge creases each define an edge of the body extending from the closed bottom end portion to the open top end portion and/or an edge of the body extending between the bottom wall and the sidewalls. A sewn-in pleat crease extends within a first pair of the opposing sidewalls. Skewed legs of the pleat crease extend from opposing corners of the respective one of the first pair of opposing sidewalls adjacent the closed bottom end portion and converge to an upwardly extending leg of the pleat crease. Handle holes are in a second pair of the opposing sidewalls.01-14-2010
20100014788Sandbag - The bag has a trapezoidal shape including a pair of parallel edges opposite each other with one longer than the other and a pair of opposite diverging edges. One edge of the bag is defined by a fold to close off an opening providing access into the bag. Other edges of the bag are formed by a seam joining two opposite layers of flexible material together. The opening is preferably provided on a flap which extends beyond the trapezoidal perimeter of the bag. When this flap is folded over, the final trapezoidal shape for the bag is provided. Walls are built utilizing a plurality of such trapezoidally shaped sandbags in alternating parallel orientations for the long edges and short edges of adjacent bags. Joints between adjacent sandbags are longer than with rectangular sandbags and interlock together somewhat.01-21-2010
20100278461COLLAPSIBLE CUSHION BAG - A rectangular cushion bag formed from a two-dimensional flat pouch, wherein select portions of the cushion bag comprise a differential rigidity to facilitate transforming the flat pouch into a box-like configuration. The differential rigidity may be created by compromising the bottom corners, strengthening portions of the sealed side edges, weakening portions of the sealed side edges, or any combination thereof. An automated method of creating the cushion bag is also disclosed. In use, the applying a downward force on the bag causes weaker portions of the bag to give way causing the two-dimensional flat pouch to open into a three-dimensional rectangular cushion bag.11-04-2010
20110158564CHILD-RESISTANT UNIT DOSE PACKAGE FOR TRANSDERMAL THERAPEUTIC SYSTEMS OR FILM- AND SHEET-TYPE DOSAGE FORMS - Unit dose packages for transdermal therapeutic systems or film- or sheet-type dosage forms in the form of a peel-open side-sealed bag. The side-sealed bags comprise two packaging material elements arranged one upon the other. At least one consists of a tear-resistant packaging material having a low tear propagation resistance. The two packaging material elements, which are joined together by a continuous sealed seam extending around the packaged good have a tab at one end of said side-sealed bag which projects beyond the sealed margin. The tabs are half as wide as the side-sealed bag and, at the end thereof which faces away from the sealed margin, have a sealed region in which they are joined to each other. At least one of the packaging material elements has a structure for partial tearing of the packaging material in the region of the tab in which the tabs are not sealed to each other. The structure for partial tearing of the packaging material is without contact to the edge of the package.06-30-2011
20110268375METHOD FOR PRODUCTION OF BAGS FOR THE TRANSPORT AND STORAGE OF BULK GOODS, AND BAG OBTAINED ACCORDING TO THE METHOD - The invention comprises using a fabric cut into several pieces which are further assembled together by stitches, the stitches being made using a sewing machine comprising at least two needles (A′, B′) operating in-line one behind the other so that the sewing stitch of the second needle (B′) is made on the threads of the sewing stitch made by the first needle (A′) in order to cover the perforation made by the first needle and so that the perforation made by the second needle (B′) is made through said thread (11-03-2011
20120163738Multi-Layered Bags With Shortened Inner Layer - Multi-layered bags include an outer layer or bag and an inner layer or bag that is shorter than the outer layer or bag. The shortened inner layer or bag can stretch or expand to the outer layer or bag when loaded with objects or otherwise strained. Such multi-layered bags can allow for a reduction in thermoplastic material without compromising the strength of the multi-layered bag. In various implementations, the inner layer or bag may be non-continuously laminated, continuously laminated, or joined only along one or more edges to the outer layer or bag. Implementations including non-continuous bonds securing the inner layer or bag to the outer layer or bag can provide additional strength to the bag. Methods of forming multi-layered bags with a shortened inner layer including inserting an inner layer within an outer layer and then joining the layers to form a bag.06-28-2012
20120195530Shieldable bag system and devices - One embodiment of the present disclosure provides a shielding apparatus including a double-lined container having an outer pocket and an inner pocket mounted within the outer pocket. The inner and outer pockets each form an enclosure having a continuous closed edge interrupted by an opening. The continuous closed edge of the outer pocket is adjacent the continuous closed edge of the inner pocket, and the opening of the outer pocket is adjacent the opening of the inner pocket. The adjacent openings are interconnected and include a device for simultaneously opening and closing the interconnected adjacent openings. A first plurality of stitches and folds are included in the continuous closed edge of the inner pocket and a second plurality of stitches and folds are included in the continuous closed edge of the outer pocket.08-02-2012
20120294552TRI-FOLD SIDE SEAMED PLASTIC PRODUCE BAG, METHOD AND APPARATUS FOR MAKING SAME - A trifold side seamed film produce bag includes a front wall and a back wall, first and second side edges sealed together and a seamless bag bottom. The bag is joined at the side edges to additional bags by a perforation. The bag is corona treated on at least one wall and promotional material is printed on the treated surface. The bags are folded to one third of their height to fit compact bag roll dispensers. The bags are folded in a Z-fold or C-fold configuration. The method includes manufacturing the bags and winding them onto cores or forming the bags into coreless rolls. An apparatus for forming the side seamed bags includes an extruder, a tubing flattener, a perforator, a sealer, a corona treater, a printer and a slitter. The treated, printed bags may be stored on rolls for later slitting into two bag streams and folding into thirds.11-22-2012
20120321227EPOXY RESIN CURING AGENT, EPOXY RESIN COMPOSITION, AND ADHESIVE AGENT FOR LAMINATE - An epoxy resin curing agent which provides good adhesiveness to polyester in addition to excellent performance and high gas-barrier properties of epoxy resins, an epoxy resin composition containing the epoxy resin curing agent, an adhesive for laminating which mainly contains the composition, a laminate film obtained by using the adhesive, a multi-layer packaging material, and a packaging bag. The epoxy resin curing agent is a reaction product of (A) m-xylylenediamine or p-xylylenediamine, (B) a polyfunctional compound having one acyl group, which forms amide linkage by a reaction with polyamine and is capable of forming an oligomer; and (C) an aromatic dicarboxylic acid, an ester thereof, an amide thereof, an acid anhydride thereof, or an acid chloride thereof.12-20-2012
20130028540EPOXY RESIN CURING AGENT, EPOXY RESIN COMPOSITION, AND ADHESIVE AGENT FOR LAMLINATE - Provided are an epoxy resin curing agent having excellent properties and high gas barrier capability that epoxy resin has and, in addition thereto, capable of realizing good adhesiveness to polyester and aluminium; an epoxy resin composition containing the curing agent; an adhesive for lamination including the composition as the main ingredient thereof; and a laminate film, a multilayer wrapping material and a wrapping bag using the adhesive. The epoxy resin curing agent comprises a reaction product of the following (A), (B) and (C): (A) meta-xylylenediamine or para-xylylenediamine, (B) a polyfunctional compound having one acyl group and capable of forming an amide group moiety through reaction with a polyamine and forming an oligomer, (C) a metal (meth)acrylate salt with a divalent or more polyvalent metal.01-31-2013
20130071049BAG FOR STORING AND PREPARING FOOD - A bag for storing and preparing food, includes a bag body including two sheets having edge regions and being sealed together at least partially along a plurality of the edge regions to present edge seals and a bag opening at one end of the bag. Each sheet comprises a composite material including a plastic inside layer suitable for making contact with the food and an outside layer of paper or metal foil.03-21-2013
20130182977FLEXIBLE PACKAGE - A package for retaining consumable products is formed by a planar sheet or web of a flexible material that is folded about a plurality of aligned products. The fold of the sheet defines one side edge of the package. The other three side edges of the package are formed by sealing the front and back panel portions of the sheet to one another. An opening mechanism is provided for exposing at least a portion of the products retained within the package. The opening mechanism may be provided along the folded side edge of the package, at a corner of the package, adjacent to one of the sealed side edges. Other forms of opening means may also be formed along one of the seal edges along with means for resealing the opened package.07-18-2013
20130188893FORM, FILL, AND SEAL BAGS AND METHOD OF PRODUCTION - A form fill and seal (FFS) bag is formed at least in part from an open mesh material that includes filaments that intersect one another. At least some of the filaments are composite filaments having a carrier portion of a relatively high melting point and a bonding portion of a relatively low melting point, the bonding portion of each composite filament being thermally bonded to other filaments at points of intersection. The material may be a non-woven fabric that contains at least two layers of weft filaments that may be bordered on one or both sides by a layer of warp filaments. When compared to other open mesh materials, the open mesh material disclosed herein has a superior combination of some or all of high strength, light weight, high dimensional stability, and openness. Also disclosed herein are methods of making such a bag.07-25-2013
20130294711Flexible Materials for Flexible Containers - A flexible material for a flexible container can include a first laminate and a second laminate joined to at least a portion of the first laminate by at least one seal. The first laminate can include a first gas barrier layer disposed between first and second sealable layers, wherein the first and second sealable layers define opposed exterior layers of the first laminate. The second laminate can include a third sealable layer defining an exterior layer of the second laminate, and a second gas barrier layer. The at least one seal joins a portion of the third sealable layer to at least a portion of the second sealable layer.11-07-2013
20140205217Bags and Method of Making Bags Incorporating Repurposed Sign Material - Bags and methods of manufacturing bags including a combination of repurposed material and virgin material in significant visible portions are described. The repurposed material can advantageously comprise a billboard material that may otherwise be thought of as waste or trash, which can be used to manufacture unique bags in combination with any suitable virgin materials having properties or qualities that are optimal for a given use or purpose.07-24-2014
20140212077PACKAGING POUCH - A packaging pouch according to the present invention includes a first cover part, a second cover part, and coupling parts. The first cover part includes a packaging area and a sealing area surrounding the packaging area, and a second cover part faces the first cover part to be coupled to the first cover part in the sealing area. Further, the coupling parts are arranged while being spaced apart from each other on the first cover part and the second cover part in the packaging area, and couple the first cover part and the second cover part to each other.07-31-2014
20140219586ULTRASONICALLY WELDED LATERAL SEALS - A horn for an ultrasonic welder includes a pattern of knurls on a face of the horn. The knurls are spaced by a pattern of indentations including fist indentations formed a first depth from a contact plane and second indentations formed a second depth from the contact plane.08-07-2014
20140254959REUSABLE EXPANDABLE BAG - The present application describes an expandable bag. The expandable bag is comprised of a frame comprising a first inner wire loop and a second inner wire loop. When the expandable bag is an open state, the inner wire loops of the frame are biased away from one another. When the expandable bag is in a closed state, the inner wire loops of the frame are proximate to one another. In a closed state, the frame of the expandable bag can be twisted and then folded into a secure compressed state.09-11-2014
20140270593TRI-FOLD SIDE SEAMED PLASTIC PRODUCE BAG AND METHOD FOR MAKING SAME - A trifold side seamed film produce bag includes a front wall and a back wall, first and second side edges sealed together and a seamless bag bottom. The bag is joined at the side edges to additional bags by a perforation. The bag is corona treated on at least one wall and promotional material is printed on the treated surface. The bags are folded to one third of their height to fit compact bag roll dispensers. The bags are folded in a Z-fold or C-fold configuration. The method includes manufacturing the bags and winding them onto cores or forming the bags into coreless rolls. An apparatus for forming the side seamed bags includes an extruder, a tubing flattener, a perforator, a sealer, a corona treater, a printer and a slitter. The treated, printed bags may be stored on rolls for later slitting into two bag streams and folding into thirds.09-18-2014
20140307987BAG WITH THERMAL WELDED BACK SEAM - A bag having a thermal welded back seam is provided. The bag may be formed primarily of a thermoplastic material and may be in the form of a polywoven bag.10-16-2014
20140363106METHOD OF PRODUCTION OF FABRIC BAGS OR CONTAINERS USING HEAT FUSED SEAMS - A method of producing flexible polypropylene fabric bags with heat fused seams comprising providing fabric pieces, wherein each fabric piece has a coated side and an uncoated side; positioning fabric pieces so that a coated side of one fabric piece faces a coated side of another fabric piece; selecting an area of fabric to be joined for forming a seam or joint; applying heat to the area to be joined that is less than the melting point of the fabrics, for forming one or more seams or joints and wherein the heat fused seams or joints of a resulting polypropylene bag retains at least 85% of the fabric strength without using sewing machines.12-11-2014
20150298418METHOD AND SYSTEM FOR MAKING A STEPPED END - A method and apparatus for making a stepped end on a tube of flexible material includes a tube slitting station having a slitting tool with double edge slitting to provide respective slits beside a first panel and beside a second panel, respectively; a first trimming station trimming a first panel of the tube to a first shortened length, a second trimming station trimming the side gussets to a second length, wherein the second length is longer than the first shortened length; and an adhesive applying station applying adhesive on the tube above and below a fold line across the tube, wherein the tube is adapted to be folded along the fold line, and the adhesive material is adapted to form an adhesive to adhesive seal above and below the fold line.10-22-2015
20150336715THREE-DIMENSIONAL BAG WITH AFFIXED SEAMS - A three-dimensional structure composed of pliable elements and having affixed seams is provided. The structure may comprise duffel bags, backpacks, shoe uppers, etc. The structure has a bottom panel with a first terminal bottom portion and a first end panel with a terminal end portion. As well, the first terminal bottom portion and the terminal end portion are affixed to each other in a flattened, two-dimensional arrangement by a variety of attachment methodologies including a thermoplastic elastomer strip. Two-dimensional construction saves time and helps to reduce manufacturing costs.11-26-2015
20160001909PACKAGING MACHINE AND METHOD FOR FILLING OPEN BAGS - A packaging machine, a method for filling product into gusseted open-mouth bags, and an open-mouth bag are provided. The packaging machine includes a filling device for filling the open-mouth bags through a filling end. A closing device is provided with which the filling end can be sealed to be completely tight after the filling process by a weld seam. An additional welding device is provided. The additional welding device is suitable and configured to place in the gussets of the open-mouth bags two additional holding seams laterally spaced apart from one another in the transverse direction and oriented approximately parallel to the weld seam.01-07-2016
20160009455BAG AND FLUID DISCHARGE METHOD USING THE SAME01-14-2016
20170233123Package Formed with a Stepped Sonotrode/Anvil Combination Having Energy Director Grids for Narrow Ultrasonic Welds of Improved Durability08-17-2017
383108000 Waterproof 2
20110064334WATERPROOF BAG - A watertight ready-made or foldable storage bag suitable for preserving and protecting items against flood hazards, preferably has a lower part in the shape of cuboid made of watertight material, and an upper part with an upper edge watertightly sealed. The bag is foldable from a planar form into a suitable shape immediately before use which saves space for large items. For smaller items the bag may be pre-folded, so that the preserved item can be placed therein, and closing the bag watertightly with its upper part. The dimensions of the bag vary depending on those of the item placed within. In an alternative option the lower and upper parts of the bag are separate parts. The lower part ensures complete watertightness of the item from the sides and below, and upon flooding, floatability of the item, while the upper tent part ensures watertightness of the item against precipitation from above.03-17-2011
20160023808Appliance Containment Assembly - An appliance containment assembly for protecting the appliance from flood damage includes a bag. The bag may insertably receive an appliance. A coupler is coupled to the bag. The coupler closes the bag. Fluid is prevented from contacting the appliance.01-28-2016

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