Coating Or Lamination Patents (Class 383/116)
  • Patent number: 6179880
    Abstract: This invention relates to dry-cleaning systems which include anhydrous dry-cleaning compositions which contain polysulfonic acid, and a bag for the cleaning and containment of soiled fabric articles. In a first embodiment, the dry-cleaning compositions includes organic solvents, polysulfonic acid, and not more than about 10 wt % water. In a second embodiment, the dry-cleaning compositions includes organic solvents and polysulfonic acid, and not more than 1 about wt % water. The invention also relates to methods of using the dry-cleaning system and dry-cleaning composition.
    Type: Grant
    Filed: June 29, 1999
    Date of Patent: January 30, 2001
    Assignee: Custom Cleaner, Inc.
    Inventor: James A. Smith
  • Patent number: 6174576
    Abstract: The invention relates to an element with a determined permeability, said element comprising a first layer and a second layer welded together with interposition of a band of fibers, so as to form a plurality of adjacent welding points, which are separated the one from the other, the fibers of the band having a melting temperature at most 5° C. higher than the melting temperature of at least one of said layers, whereby at the welding points, fibers of the band are molten into the welding lines, so that between two adjacent welding lines, fibers of the band are not molten and form a channel for the exchange of gases but avoiding the passage of solid particles.
    Type: Grant
    Filed: February 12, 1998
    Date of Patent: January 16, 2001
    Inventor: Joseph Van de Ponseele
  • Patent number: 6132474
    Abstract: A bag for the cleaning and containment of soiled fabric articles is provided which comprises a fastening system that, when fastened provides a vapor impermeable container and an interior surface releasably impregnated with an effective amount of a gelled liquid dry-cleaning composition.
    Type: Grant
    Filed: February 19, 1998
    Date of Patent: October 17, 2000
    Assignee: Custom Cleaner, Inc.
    Inventors: James A. Smith, George W. Kellett
  • Patent number: 6127009
    Abstract: A dispenser unit has a flexible polymer bag, a joining part (10, 11) and a stiff hard part (20). The joining part has an inner layer (11) welded to the hard part and an outer polymer layer (10) welded to the inner material of the flexible bag. The inner material (30) of the flexible bag and the outer material of the joining part (10) are the same and are joined in such a way that they may be thermally sterilized. A process for manufacturing this dispenser unit has a step of coextrusion of the multilayered bag material, a step of extrusion of the multilayered joining part, and steps for sealing the bag material, sealing the multilayered joining part and sealing the hard part. The dispenser unit can be used for dispensing liquids, in particular aqueous liquids for human or animal medicine or in the food industry.
    Type: Grant
    Filed: November 3, 1998
    Date of Patent: October 3, 2000
    Assignee: Pactiv Corporation
    Inventor: Gunther Strassmann
  • Patent number: 6112772
    Abstract: A system with reduced electrostatic discharge including woven fabric configured into a flexible container and having sufficient electrical resistivity to allow discharges of energy from the fabric of below about one-hundred nanocoulombs when the fabric is charged to more than about negative ten thousand volts. The flexible fabric container with a reduced potential for incendiary discharge may further include quasi-conductive fibers or a combination of quasi-conductive fibers and an antistatic coating. The quasi-conductive fibers further may be woven into the fabric. The present invention also discloses a method for reducing electrostatic discharge in ungrounded type flexible fabric container systems by providing a flexible fabric container made from woven fabric and adjusting the electric resistivity of the woven fabric to allow the flow of electricity through the fabric at a rate allowing discharges at below about one-hundred nanocoulombs when the fabric is charged at more than about negative ten kilovolts.
    Type: Grant
    Filed: October 20, 1997
    Date of Patent: September 5, 2000
    Assignee: Linq Industrial Fabrics, Inc.
    Inventors: Vahid Ebadat, George M. Milner, Robert J. Pappas
  • Patent number: 6086634
    Abstract: This invention relates to dry-cleaning systems which include dry-cleaning compositions which contain polysulfonic acid and water, and a bag for the cleaning and containment of soiled fabric articles. The invention also relates to methods of using the dry-cleaning system and dry-cleaning composition.
    Type: Grant
    Filed: August 4, 1997
    Date of Patent: July 11, 2000
    Assignee: Custom Cleaner, Inc.
    Inventor: James A. Smith
  • Patent number: 6033114
    Abstract: An ovenable bag for packaging heated, greasy food items for display is formed of a laminate having a thin, transparent, polyester inner layer and a relatively thicker and stiffer opaque outer layer formed of a foldable and printable material. The wall structure is generally tubular and is folded to define front and rear panels and gusseted side panels, one end of the structure being folded, heat sealed and then folded again and adhesively secured. The window portion extends the length of the front panel of the bag centrally thereof. The outer layer is bonded to the inner layer along the entire area of the outer layer except for an optional tear strip which may be disposed along one edge of the window. The bag may also be heat sealed along the fold lines joining the side panels to the front and rear panels for added stiffness.
    Type: Grant
    Filed: January 20, 1998
    Date of Patent: March 7, 2000
    Assignee: Bagcraft Packaging, L.L.C.
    Inventors: Charles T. Grimm, James Allen, Nancy Chico, Gino Narduli, Karen Susan Teter, Timothy J. Hannon, Donald E. Wolski, Harley Dubeck, Ernest R. Herzog, Thomas William DePretoro
  • Patent number: 6027248
    Abstract: A bottom bag closure of the present invention is created from a substantially tubular length of fabric and two sets of connectors. One of a first set of connectors is on a partial seam on a back face of the bag. Another one of the first set of the connectors is on a bottom edge of a front face. Each of the second set of connectors is on the bottom edge of the back face adjacent an unconnected portion of the partial seam. The first set of connectors is connected toward the back face of the bag and the second set of connectors is connected toward the front face of the bag. The present invention also includes a method of creating the above set forth leakproof, reusable bottom bag closure.
    Type: Grant
    Filed: February 24, 1999
    Date of Patent: February 22, 2000
    Assignee: The Bag Connection
    Inventors: Peter Nelson, Bill Dieter
  • Patent number: 6007245
    Abstract: An emergency survival bag. The bag has front and rear walls joined at sides and at a bottom, but open at a mouth, to define a waterproof cavity therewithin, in which a victim may remain in the water and on land. A casing formed adjacent the mouth of the bag slidably receives a draw cord, a portion of which extends from an aperture in the casing and being accessible for use in opening and drawing closed the mouth of the bag. The walls of the bag are formed of laminated materials including insulative polymers and a metalized coating.
    Type: Grant
    Filed: June 19, 1997
    Date of Patent: December 28, 1999
    Assignee: Corporate Air Parts, Inc.
    Inventor: Neil Looy
  • Patent number: 5997586
    Abstract: A bag for the cleaning and containment of soiled fabric articles is provided which comprises a fastening system that, when fastened provides a vapor impermeable container and an interior surface releasably impregnated with an effective amount of a gelled liquid dry-cleaning composition.
    Type: Grant
    Filed: January 13, 1998
    Date of Patent: December 7, 1999
    Inventors: James A. Smith, George W. Kellett
  • Patent number: 5941642
    Abstract: A system for packaging and dispensing fluids including a flexible package having a removable margin portion and retention elements by which a tube may be held in a certain position within the package such that, when the removable margin is detached and pressure is applied to the exterior surface of the package sides, the dispensing end of the tube is indirectly pushed out from within the package inner volume and above the margin of the package for sanitarily dispensing fluid and, upon release of the pressure, the tube may slide back within the inner volume for the sanitary storage of the tube.
    Type: Grant
    Filed: January 9, 1998
    Date of Patent: August 24, 1999
    Inventor: Jon D. Darmstadter
  • Patent number: 5935847
    Abstract: A multi-layer, flexible, gas-permeable film (10) suitable for forming a cell culture container (20), the film (10) comprising a first layer (12) composed of a polystyrene having a thickness within the range of 0.0001 inches to about 0.0010 inches and, a second layer (14) adhered to the first layer (12) composed of a polymer material having a thickness within the range of 0.004 inches to about 0.025 inches.
    Type: Grant
    Filed: May 4, 1998
    Date of Patent: August 10, 1999
    Assignee: Baxter International Inc.
    Inventors: Sidney T. Smith, David V. Bacehowski, William Kolanko, Larry Rosenbaum, Stephen L. Smith, James G. Bender, Lecon Woo, Michael T. K. Ling
  • Patent number: 5934809
    Abstract: Pouches of flexible packaging material exhibit a tearing zone in the form of a weakness such as perforations or a separation in the material, this in order to be able to remove the contents easily. The packaging material is covered over by at least one film-forming mass, at least in the region of weakness, in order that the package remains closed until the contents are to be used. The film-forming mass may be the decorative printing on the pouch. After packaging, the contents are protected by the pouch and, in order to remove the contents, the pouch may be opened readily by a pulling or snapping movement which causes the covering of film-forming mass to break.
    Type: Grant
    Filed: May 13, 1997
    Date of Patent: August 10, 1999
    Assignee: Alusuisse Technology & Management Ltd.
    Inventor: Claude A. Marbler
  • Patent number: 5902643
    Abstract: Disclosed is a multilayer packaging material which is suitable for use as a container for malt beverages and which is tinted so as to block at least 90% of light with wavelengths of electromagnetic radiation ranging from 300 nm to 500 nm. The tinted multilayer packaging materials of the present invention includes: (a) at least one layer of a carbon dioxide (CO.sub.2)-permeable polymeric packaging material, and (b) at least one layer of a CO.sub.2 -treated gas barrier coating, which has an oxygen permeability constant not more than 0.05 cubic centimeter-mil/100 square inches/atmosphere/day. The CO.sub.2 -permeable packaging material can be any polymeric material through which CO.sub.2 can pass and which can be used as a packaging material for food or beverages. The gas barrier coating has an oxygen permeability constant, before CO.sub.2 treatment, of less than 0.3. This gas barrier coating includes the reaction product of a polyamine (A) and a polyepoxide (B).
    Type: Grant
    Filed: November 24, 1997
    Date of Patent: May 11, 1999
    Assignee: PPG Industries Inc.
    Inventors: Leland H. Carlblom, Jerome A. Seiner, Ken W. Niederst
  • Patent number: 5885262
    Abstract: A waste bag made from a sheet of plastics laminate comprising a layer of generally fluid-proof plastics material and a layer of liquid-absorbent plastics material. The liquid-absorbent material is on the inside of the bag, and the laminate is turned back on itself along at least one seam of the bag. Regions of the generally fluid-proof plastics material that are in contact with one another along that seam are sealed together ultrasonically.
    Type: Grant
    Filed: March 17, 1997
    Date of Patent: March 23, 1999
    Assignee: Guardline Disposables Limited
    Inventor: Raymond Wheeler
  • Patent number: 5871790
    Abstract: A multi-ply laminated wall structure, especially for a bag for popping popcorn in a microwave oven, has at least two plies of paper secured together with spaced patches of adhesive to form a unitary laminated structure that has greater flexibility and lower cost than a conventional bag wall. The adhesive covers from about 25% up to about 60% of the confronting area between the plies, and the unsecured areas between the patches of adhesive are in communication with one another. The outer ply is gas permeable so that gas is permitted to escape from between the plies, and any moisture between the plies escapes through the unsecured areas between the patches of adhesive at the ends of the laminated structure.
    Type: Grant
    Filed: March 4, 1997
    Date of Patent: February 16, 1999
    Assignee: Union Camp Corporation
    Inventors: James L. Monier, Dennis A. Olsheski
  • Patent number: 5871096
    Abstract: A multiply promotional package and method of making same, wherein the package comprises an outer layer, an intermediate layer and an inner layer joined at least at there edges to enclose the package. Either of the oppositely disposed surfaces of the outer layer may contain a defined masking or message concealing area. A second masking area is provided in register with the first masking area. The masking areas provide a means of concealing a promotional message or indicia from the exterior of the package, until such time that the package and its contents have been purchased.
    Type: Grant
    Filed: October 8, 1997
    Date of Patent: February 16, 1999
    Assignee: Seville Flexpack Corporation
    Inventor: Walter J. Yakich
  • Patent number: 5811161
    Abstract: The present invention relates to a package of paper or paperboard having a thin extruded polyethylene coating, which is degradable in a compost. Further, the invention also relates to a method of disposing of such a package by placing the package, with or without compostable contents, in a compost, and use of such a package for storage and transport of compostable waste, such as domestic waste.
    Type: Grant
    Filed: July 10, 1996
    Date of Patent: September 22, 1998
    Assignee: Korsnas AB
    Inventors: H.ang.kan Joves, Johanna Lofroth Nickel, Bengt Nordin, Roland Nordin
  • Patent number: 5787838
    Abstract: A device and method for decorating an egg is provided which comprises a paper bag, the inner surface of which is coated with a water-soluble transfer dye, such that when an egg with a wetted surface is introduced into the bag and comes into contact with the dye on the inner surface of the bag, the dye releases from the bag and transfers onto the egg, coloring the egg.
    Type: Grant
    Filed: April 1, 1996
    Date of Patent: August 4, 1998
    Assignee: Easter Unlimited Incorporated
    Inventor: Gary M. Abrams
  • Patent number: 5784860
    Abstract: A sealed bag for vacuum-packing an electronic device in the state of being evacuated and partially thermally fused at an opening thereof includes a multi-layer film including; a first anti-static layer; a thin metal layer; an insulative layer; and a second anti-static layer. A container includes a case for accommodating at least two such sealed bags. The case is provided with a charge protective layer on an inner surface thereof; a housing for accommodating at least two cases; and a master carton for accommodating at least one housing.
    Type: Grant
    Filed: June 27, 1996
    Date of Patent: July 28, 1998
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Hisashi Fujikawa, Youki Yoneda
  • Patent number: 5746776
    Abstract: A bag for the cleaning and containment of soiled fabric articles is provided which comprises a fastening system that, when fastened provides a vapor impermeable container and an interior surface releasably impregnated with an effective amount of a gelled liquid dry-cleaning composition.
    Type: Grant
    Filed: August 20, 1996
    Date of Patent: May 5, 1998
    Assignee: Creative Products Resource, Inc.
    Inventors: James A. Smith, George W. Kellett
  • Patent number: 5728439
    Abstract: Disclosed is a multilayer packaging material which is suitable for use as a container for malt beverages and which is tinted so as to block at least 90% of light with wavelengths of electromagnetic radiation ranging from 300 nm to 500 nm. The tinted multilayer packaging materials of the present invention includes: (a) at least one layer of a carbon dioxide (CO.sub.2)-permeable polymeric packaging material, and (b) at least one layer of a CO.sub.2 -treated gas barrier coating, which has an oxygen permeability constant not more than 0.05 cubic centimeter-mil/100 square inches/atmosphere/day. The CO.sub.2 -permeable packaging material can be any polymeric material through which CO.sub.2 can pass and which can be used as a packaging material for food or beverages. The gas barrier coating has an oxygen permeability constant, before CO.sub.2 treatment, of less than 0.3. This gas barrier coating includes the reaction product of a polyamine (A) and a polyepoxide (B).
    Type: Grant
    Filed: December 4, 1996
    Date of Patent: March 17, 1998
    Assignee: PPG Industries, Inc.
    Inventors: Leland H. Carlblom, Jerome A. Seiner, Ken W. Niederst
  • Patent number: 5697707
    Abstract: A compartmentalized food and beverage bag with reinforcement shields comprising: a bag fabricated of wax coated paper and including four side walls, a floor and an open top, two side walls including a crease to permit collapsible folding of the bag, the floor of the bag having an upper surface including a wax coated cardboard reinforcement member positioned adjacent to a first side wall, the first side wall also including a vertically positioned waxed cardboard reinforcement member affixed thereto, a drink holder ring fabricated of wax coated cardboard and formed in a generally circular configuration being affixed to the vertical reinforcement member, in an operative orientation a beverage cup being positioned through the ring with the lower surface of the cup being positioned upon the reinforcement member on the bottom of the bag, the waxed cardboard ring and reinforcement member enabling the bag to support the weight of a full beverage cup without risk of spillage occurring.
    Type: Grant
    Filed: October 23, 1995
    Date of Patent: December 16, 1997
    Inventor: David P. Esposito
  • Patent number: 5679449
    Abstract: A system with reduced electrostatic discharge including woven fabric configured into a flexible container and having sufficient electrical resistivity to allow discharges of energy from the fabric of below about one-hundred nanocoulombs when the fabric is charged to more than about negative ten thousand volts. The flexible fabric container with a reduced potential for incendiary discharge may further include quasi-conductive fibers or a combination of quasi-conductive fibers and an antistatic coating. The quasi-conductive fibers further may be woven into the fabric. The present invention also discloses a method for reducing electrostatic discharge in ungrounded type flexible fabric container systems by providing a flexible fabric container made from woven fabric and adjusting the electric resistivity of the woven fabric to allow the flow of electricity through the fabric at a rate allowing discharges at below about one-hundred nanocoulombs when the fabric is charged at more than about negative ten kilovolts.
    Type: Grant
    Filed: June 1, 1995
    Date of Patent: October 21, 1997
    Assignee: Linq Industrial Fabrics, Inc.
    Inventors: Vahid Ebadat, George M. Milner, Robert J. Pappas
  • Patent number: 5660477
    Abstract: A liquid container comprises a flexible bag-shaped container body 1 which is provided with two flat portions 3(3a,3b) as front and back walls and two gusset portions 4(4a,4b) as side walls which are folded inwardly, and a pipe-shaped delivery unit 2 which is provided with a mouth portion 11 at an upper end thereof to be projected out of an upper end portion of the container body, and a flange portion 12 below the mouth portion to be held at a joining portion 5 of the upper end portion of the container body, wherein each gusset portion 4 has a width approximately equal to that of the flat portion 3, inward end portions 15(15a,15b) of the two gusset portions being interposed between the flange portion 12 and the flat portion 3 at the joining portion 5. When the liquid container is manufactured, it is preferable that films for the gusset portions are temporarily bonded to a film for the flat portion before the positioning of the delivery unit.
    Type: Grant
    Filed: June 26, 1996
    Date of Patent: August 26, 1997
    Assignee: Kabushiki Kaisha Hosokawa Yoko
    Inventor: Tooru Ichikawa
  • Patent number: 5639523
    Abstract: A decorative sheet material which includes a first sheet which has a first side and a second side, an optional layer of cushioning material which, if present, is adhered to the first side of the first sheet, a second sheet which has a first side and a second side, the first side of which is positioned against the second side of the first sheet, the second sheet being made of paper, plastic, leather, fabric and/or metal/foil, a first adhesive layer which is placed against the second side of the second sheet, and a first outer plastic layer which is placed against the first adhesive layer. The decorative sheet material may also include sprinkles, glitter, sequins, feathers, shredded mylar, shredded foil, cut-outs and the like, which are positioned either between the first adhesive layer and the outer layer of plastic or between the first side of the second sheet and the first adhesive layer. There may be one or more ridges or grooves, or both, in the first outer plastic layer.
    Type: Grant
    Filed: January 20, 1995
    Date of Patent: June 17, 1997
    Inventor: Dana R. Ellis
  • Patent number: 5556674
    Abstract: Heat-shrinkable coextrudate thermoplastic film packaging materials, well suited for the packaging of any one or more of a wide variety of articles, e.g., canned goods, and readily torn in a transverse direction substantially perpendicular to the machine direction thereof, e.g., by the provision of a tab or pull member thereon, are shaped from(a) at least one layer of a polyolefin; and(b) at least one layer of a copolymer selected from among ionic copolymers of:(1) .alpha.-olefins of the formula R--CH.dbd.CH.sub.2 wherein R is hydrogen or an alkyl radical having from 1 to 8 carbon atoms, with(2) .alpha., .beta.-ethylenically unsaturated carboxylic acids having from 3 to 8 carbon atoms, and(3) optionally, an additional monoethylenically unsaturated comonomer; with the proviso that from 10% to 90% of the carboxylic acid functions of such copolymer are ionized by neutralization by means of metallic ions distributed over the copolymer.
    Type: Grant
    Filed: October 9, 1992
    Date of Patent: September 17, 1996
    Assignee: Sodap
    Inventor: Daniel Meilhon
  • Patent number: 5544569
    Abstract: Adjustably spaced vertical heating panels have heated facing surfaces which with end walls and a sliding bottom panel define a vertical heating space wherein chips or other foodstuffs can be cooked.
    Type: Grant
    Filed: August 9, 1994
    Date of Patent: August 13, 1996
    Inventor: Jerome Langhammer
  • Patent number: 5527413
    Abstract: A susceptor according to the present invention includes a substrate having physical properties so that melting and size deformation of the substrate occur in response to microwave absorption by the susceptor. A metalized layer is coupled to the substrate, and supporting means is provided for supporting the substrate and the metalized layer.
    Type: Grant
    Filed: November 1, 1993
    Date of Patent: June 18, 1996
    Assignee: The Pillsbury Company
    Inventors: Michael R. Perry, Ronald R. Lentz
  • Patent number: 5523134
    Abstract: A flexible abdominal pack for displacing organs during surgery which is nonabrasive, free of foreign bodies and which conforms to the organ being displaced. The pack is sausage shaped and the walls are formed from cured latex having a cured lubricous hydrogel coating on the surface thereof.
    Type: Grant
    Filed: June 16, 1994
    Date of Patent: June 4, 1996
    Inventor: John E. Strong
  • Patent number: 5520972
    Abstract: A medical bag comprised of a laminate film, sheet or tube composed of three layers or more comprising an outer layer and an inner layer, at least said inner layer of said inner and outer layers in contact with a liquid contained in the bag comprises a high-density polyethylene resin having a density of 0.945 g/cm.sup.3 or more and an Mw/Mn value of 4.0 or less or a composition comprising said high-density polyethylene resin and, added thereto, less than 60% by weight of a low-density polyethylene resin having a density of 0.930 g/cm.sup.3 or less produced by a radical polymerization; and an intermediate layer comprising a composition composed of a linear, low-density polyethylene resin having a short-chain branching and a density of 0.920 g/cm.sup.3 or less and, added thereto, less than 15% by weight of a high-density polyethylene resin having a density of 0.945 g/m.sup.3 or more and an Mw/Mn value of 4.
    Type: Grant
    Filed: March 6, 1995
    Date of Patent: May 28, 1996
    Assignee: Showa Denko K.K.
    Inventors: Tomohiko Ezaki, Yoshimasa Saito, Nobuyuki Tanaka
  • Patent number: 5518313
    Abstract: A flat wrapping container assembly adapted to be folded to form a container having a frame-like support structure disposed therein. The assembly includes a thin, flat sheet of flexible wrapping material and a foldable support structure, which has a center panel and a plurality of outer panels forming frame arms extending outward from the center panel adhered to an inside surface of the sheet. The support structure further has fold lines between the center panel and the outer panels that are adapted to allow the outer panels to pivot upward above the center panel about the fold lines. A pull cord is attached to the flexible wrapping material and to the support structure and is adapted to draw the outer panels and portions of the sheet extending therebetween upward above the center panel when opposite ends of the pull cord are pulled outward away from the center panel, thereby forming a container around an article positioned on the center panel.
    Type: Grant
    Filed: April 4, 1994
    Date of Patent: May 21, 1996
    Assignee: Indigo Corporation
    Inventor: Christine A. McAdam
  • Patent number: 5478154
    Abstract: A quasi-conductive woven fabric section including quasi-conductive fibers, which reduce the potential for incendiary discharge. The woven fabric section may further include an antistatic coating. The coating may be applied to an entire surface of the woven fabric section or it may coat about one-half of the section. A process is disclosed for making flexible fabric containers with a reduced potential for incendiary discharge made of woven fabric sections including the quasi-conductive fibers. In addition, a process is disclosed for making such containers with a reduced potential for incendiary discharge including an antistatic coating on the containers, either over the entire surface or over approximately half of the surface.
    Type: Grant
    Filed: June 1, 1994
    Date of Patent: December 26, 1995
    Assignee: Linq Industrial Fabrics, Inc.
    Inventors: Robert J. Pappas, George M. Milner, Vahid Ebadat
  • Patent number: 5474818
    Abstract: A pouch suitable for packaging disposable consumer products having a pressure sensitive adhesive coated on a portion of a surface thereof. The pouch is formed from a silicone polymer coated paper with the silicone coating forming an internal surface of the pouch, thereby allowing easy removal of the product from the pouch and avoiding permanent sticking of the pressure sensitive adhesive coating to the pouch material. The silicone polymer coated paper used to form the pouch has, as a part of the composition thereof, a thermoplastic component which can be a thermoplastic basecoat, or an admixed thermoplastic polymer included in the silicone polymer coating, or a thermoplastic coating on the surface of the paper opposite the silicone coating, or combinations of these alternatives. In all cases, the thermoplastic component is provided in the form of a water-based emulsion or dispersion of a thermoplastic polymer, such as an emulsion of an ethylene vinyl acetate copolymer.
    Type: Grant
    Filed: January 26, 1993
    Date of Patent: December 12, 1995
    Assignee: International Paper
    Inventors: Helga H. Ulrich, James R. Quick, Barry L. Hess
  • Patent number: 5468528
    Abstract: A bulk material transport bag has a plurality of sidewalls, a lower end wall, and an upper wall, defining a bulk material space therewithin. The surrounding sidewalls are formed by a panel of fabric, positioned at each corner of the bag, the panel of fabric formed into a right triangle, so that the first and second legs of the triangle form the outer wall of the bag at each corner, and the third leg (or hypotenuse) of the triangle forms the internal baffle wall of the bag. Each corner triangle is stitched to a flat panel of fabric, defining the remaining central portion of each sidewall, so that when the eight portions of fabric are joined, there is defined the enclosed wall of the bag, together with the baffles formed in the interior of the bag. The bag includes a plurality of rectangular or triangular shaped openings in each of the baffle walls for allowing bulk material to flow therethrough in order to completely fill the bag.
    Type: Grant
    Filed: March 14, 1995
    Date of Patent: November 21, 1995
    Inventors: Daniel R. Schnaars, Randall H. Curtis
  • Patent number: 5465842
    Abstract: A composite endless form for making flexible, windowed, form, fill and seal bags includes an endless strip of flexible, substantially opaque, paper-like material having a print side thereon with printed indicia thereon and an adhesive side, opposite the print side, with an adhesive thereon. The endless strip of paper-like material includes individual bag forms attached side-to-side thereon, each to be used for making a windowed bag, the endless-strip of paper-like material having a window opening cut in each individual bag form. The window openings are oblong and extend diagonal to a direction of elongation of the composite endless form. A heat-sealable film is adhered to the endless-strip of paper-like material on the adhesive side thereof to cover substantially all of the adhesive side. The composite endless form is placed in a roll to be fed to form, fill and seal machines for making windowed bags.
    Type: Grant
    Filed: November 28, 1994
    Date of Patent: November 14, 1995
    Assignee: Vitex Packaging, Inc.
    Inventor: Wayne S. Utley
  • Patent number: 5405663
    Abstract: A laminate for use in microwave cooking which includes a susceptor formed by depositing a thin layer of microwave-interactive material on a plastic base sheet, and then extrusion bonding that susceptor to a plastic coated paper sheet, without the use of an adhesive.
    Type: Grant
    Filed: November 12, 1991
    Date of Patent: April 11, 1995
    Assignee: Hunt-Wesson, Inc.
    Inventors: William E. Archibald, Cynthia G. Scrimager
  • Patent number: 5401546
    Abstract: The present invention relates to a pouch for storage and dispensing of lubricating oil and comprises a back sheet heat sealed along the vertical ends to a front sheet, a base sheet heat sealed to said back and front sheets. Each of said sheets comprises a laminate of a polyester sheet adhered to a coextruded sheet comprising layers selected from high density polyethylene, low density polyethylene and linear low density polyethylene.
    Type: Grant
    Filed: December 20, 1993
    Date of Patent: March 28, 1995
    Inventor: Kamal Meattle
  • Patent number: 5376392
    Abstract: The present invention relates to a food packaging bag comprising a water-resistant perforated sheet part which composes of at least a part of an outer layer of the bag, a moisture permeable waterproof film which is laminated by bonding in part to an inside of the perforated sheet part as an inner layer to form a moisture permeable waterproof part, and a waterproof sheet part which composes of the rest of the outer layer part. Further, when, if desired, an absorbent sheet layer is provided on at least a part of the inside of the waterproof sheet part, the functions of the moisture permeable waterproof film such as moisture permeability are scarcely impaired when the packed food is heat-cooked, and the moisture permeable waterproof film weak in strength is seldom broken by scraping distribution or bursting during cooking with heat.
    Type: Grant
    Filed: May 5, 1992
    Date of Patent: December 27, 1994
    Assignee: Kohjin Co., Ltd.
    Inventors: Shigeyoshi Ikegami, Hisashi Kojyoh, Iu Uchida, Tadayoshi Yamazaki, Toshiaki Miyajima
  • Patent number: 5335996
    Abstract: A bag for carrying and exposing a food item, usually of the hamburger-type sold at fast-food or convenience stores. The bag includes front, back and gusseted side panels which are interconnected and form a V-shaped closed end and an open end. A pair of lines of weakness or perforations are provided in the bag, one along the junction of each side panel and the front panel and extending between the open and closed ends. A pair of slits, one member associated with each line of perforation and extending from the bag open end to the respective perforation line. A second set of slits can be provided at open end of each of the non-perforated side panel/back panel junctions can be provided. The bag having a width or the distance between the lines of perforations being substantially equal to the width of the front panel. Thus the bag can be opened by tearing along the perforations so as to expose the bag interior and an item therein for removal, application of condiments, and/or reuse of the bag.
    Type: Grant
    Filed: July 8, 1993
    Date of Patent: August 9, 1994
    Assignee: Bagcraft Corporation of America
    Inventors: Jeffery J. Cortopassi, Ronald Marsik, Raymond E. McDonald, Nicholas M. Shymanski
  • Patent number: 5308666
    Abstract: The invention relates to a write-on surface derived by surface treatment (corona-discharge or other similar surface treatment) of a novel write-on composition. The write-on composition to be treated is characterized as a physical mixture of two substantially incompatible polymers and, optionally, a particulate material.
    Type: Grant
    Filed: October 16, 1992
    Date of Patent: May 3, 1994
    Assignee: First Brands Corporation
    Inventor: Michael G. Borchardt
  • Patent number: 5236531
    Abstract: This invention relates to the method for manufacturing a variety of square bottom containers by folding to the same side both of two brims of a sheet-shaped container of raw material of paper, aluminum foil, plastic laminate film and the like such that the brims mutually abut each other, forming a bonding agent or heat-seal layer on the outsides of both these butted brims, then forming the lower portion into a W-shape with an inverted V-shaped fold being provide in the midway, and then press-fitting the bonding agent or heat-seal layer from the outside of the formed sheet for its bonding or deposition, the press fit formed sheet defining a square bottom container having a bottom laminate which is flat with no overlap and having a heat seal film or the like which doesn't come inside the container. The method is efficient and the containers can be manufactured quite easily.
    Type: Grant
    Filed: January 8, 1991
    Date of Patent: August 17, 1993
    Assignee: Altech Co., Ltd.
    Inventor: Naoomi Yokoyama
  • Patent number: 5213418
    Abstract: A reusable bag includes a base. A plurality of side panels are affixed to the base and extend from the base in substantially the same direction. The base and sides of the reusable bag are formed of a semi-rigid form maintaining material which maintains its form while allowing each side and base to collapse upon itself.
    Type: Grant
    Filed: June 13, 1991
    Date of Patent: May 25, 1993
    Inventors: Kristen Dancy, Kal Kassel
  • Patent number: 5213227
    Abstract: A container is made of a laminated material that includes a tin layer which is exposed on the inner surface side of the container. Oxygen remaining in the container and included in the content is trapped by the reducing action of tin, and the content is prevented from being oxidized. Further, the remaining enzymes are de-activated and flavor can be excellently retained.
    Type: Grant
    Filed: June 4, 1991
    Date of Patent: May 25, 1993
    Assignee: Toyo Seikan Kaisha Ltd.
    Inventors: Masayasu Koyama, Toshifumi Tanahashi, Kanemichi Yamaguchi, Toshio Goryoda
  • Patent number: 5181610
    Abstract: A pouch for the packaging of products having a pressure sensitive adhesive thereon, such as sanitary napkins. The pouch is formed of paper of plastic film coated on one side with a layer of silicone, the pouch construction being such that the silicone coating defines the interior surfaces of the pouch. Due to the nonstick characteristic of the silicone coating, the usual protective liner for the adhesive on the packaged product can be omitted. The side seams of the pouch are formed by the application of heat or ultrasonic energy in combination with mechanical deformation of the paper or film to produce embossments in the seam areas. The side seams may be comprised of two or three layers of material. The nature of these side seams may be such that the pouch may be opened by peeling apart the seams, or the seams may be sealed so tightly that the pouch can be opened only by tearing the material.
    Type: Grant
    Filed: May 15, 1992
    Date of Patent: January 26, 1993
    Assignee: International Paper Company
    Inventors: James R. Quick, Robert L. Gordon
  • Patent number: 5161895
    Abstract: A gift sack with a drawstring or the like member and method for making the same are disclosed. The method includes providing a sheet material of a predetermined dimension and including a heat-sealable resin-coating on one side thereof. The sheet material is spread flat on a support surface with the resin-coating facing upwardly and a heat-treatable drawstring member of a predetermined length is positioned thereon generally parallel to and along an edge portion thereof. The edge portion is folded over the drawstring about a fold line extending generally parallel to the drawstring. The sheet material portions lying adjacent the sides of the drawstring are sealed together simultaneously, without bonding the drawstring to the sheet material, by applying heat across and over the drawstring.
    Type: Grant
    Filed: September 26, 1990
    Date of Patent: November 10, 1992
    Inventor: Marion P. Myers
  • Patent number: 5134001
    Abstract: An adhesively laminated composite plastic film comprising at least two layers of preformed plastic film adhered together by means of an adhesive material disposed therebetween but having preselected areas which contain neither the adhesive nor anything else which is incompatible with said plastic is disposed between the layers of plastic film or on the surfaces thereof. The composite is quite usable for forming into plastic bags by either folding the composite film upon itself and heat sealing the meeting edges, or by superposing the composite film with at least one other plastic film, which may itself be a composite film, and then heat sealing the meeting edges. The preselected areas which are devoid of adhesive correspond to the heat seal areas.
    Type: Grant
    Filed: August 7, 1990
    Date of Patent: July 28, 1992
    Assignee: Mobil Oil Corporation
    Inventor: W. Robert Osgood
  • Patent number: 5107989
    Abstract: A container for packaging electronic components which are susceptible to damage from electrostatic discharge or fields comprises a container made of paperboard or paper having an electrically conductive coating of electrostatic shielding material on the exterior surface thereof, and a coating of inorganic non-carbonaceous electrostatic dissipative material on the interior surface thereof. The electrically conductive coating preferably has an electrical surface resistivity of less than about 10.sup.5 ohms/square, and the inorganic, non-carbonaceous, electrostatic dissipative coating has an electrical surface resistivity of greater than about 10.sup.5 ohms/square. The electrostatic shielding material is preferably a carbonaceous material, and the non-carbonaceous, electrostatic dissipative material preferably comprises particles of amorphous silica or silica-containing material coated with antimony-doped tin oxide.
    Type: Grant
    Filed: April 12, 1991
    Date of Patent: April 28, 1992
    Assignee: Conductive Containers, Inc.
    Inventor: Raymond P. Becker
  • Patent number: 5097956
    Abstract: A vacuum package is made of flexible laminate capable of being stored as roll stock. The laminate comprises laminated inner and outer layers providing desired mechanical properties, secured together at patterned areas to facilitate the passage of gas between the layers, and is provided with a hand peelable sealing strip at an area which, when the laminate is formed into a bag and the mouth sealed, extends around the periphery of the mouth of the package. When the laminate is formed into a bag, the application of vacuum to the interior of the bag results in the inner layer conforming to the contours of the contents, while ambient air between the layers enables the outer layer to maintain a desirable and aesthetically pleasing smooth surface texture.
    Type: Grant
    Filed: May 9, 1990
    Date of Patent: March 24, 1992
    Assignee: Paramount Packaging Corporation
    Inventor: John S. Davis
  • Patent number: 5098754
    Abstract: The present invention is a relatively long, rectangular, poly-tarpaulin bag constructed to easily hold a bale of hay approximately 18".times.18".times.48". The weave of the bag is 12.times.12 fibers per inch. The bag is made from two panels of material sewn together and closed with a drawstring.
    Type: Grant
    Filed: May 29, 1990
    Date of Patent: March 24, 1992
    Inventor: Marilyn Horstmyer