Patents Represented by Attorney Roger Aceto

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  • Method of making a multilayer biaxially stretched film and heat shrunk meat-containing bag
    Patent number: 5632843
    Abstract: A heat-shrinkable, multilayer film suitable for use in fabricating bags for packaging primal and sub-primal meat cuts and processed meats. The multilayer film has a first outer layer of a first ethylene-vinyl acetate copolymer, a core layer of a barrier film comprising a polyvinylidene chloride copolymer, and a second outer layer of a second ethylene-vinyl acetate copolymer. The multilayer film is preferably made by co-extrusion of the layers, and then it is biaxially stretched. After biaxial stretching, the multilayer film is irradiated to a dosage level of between 1 megarad and 5 megarads and heat-sealed in the form of a bag. The bag has improved toughness properties and heat-sealing characteristics.
    Type: Grant
    Filed: November 9, 1990
    Date of Patent: May 27, 1997
    Assignee: Viskase Corporation
    Inventors: Stanley Lustig, Jeffrey M. Schuetz, Stephen J. Vicik
  • Reinforced cellulosic film
    Patent number: 5603884
    Abstract: Disclosed is a method of preparing an extruded cellulosic film which contains a uniform dispersion of hemp fibers by first adding the fibers to an amine oxide cellulose solvent to form a slurry, mixing the slurry with a molten aqueous solution of cellulose and amine oxide cellulose solvent extruding the mixture end then regenerating the dissolved cellulose.
    Type: Grant
    Filed: November 18, 1994
    Date of Patent: February 18, 1997
    Assignee: Viskase Corporation
    Inventors: Paul E. DuCharme, Jr., Norman A. Protnoy, John Markulin, Myron D. Nicholson
  • Apparatus for the manufacture of cellulose food casing
    Patent number: 5597587
    Abstract: An apparatus to manufacture a cellulose food casing including a nonderivatized cellulose film precipitated in tubular form from an extruded thermoplastic solution of cellulose and an amine oxide cellulose solvent.
    Type: Grant
    Filed: March 29, 1995
    Date of Patent: January 28, 1997
    Assignee: Viskase Corporation
    Inventors: Myron D. Nicholson, Edward M. Kajiwara, Paul E. Ducharme, Jr., Merlan E. McAllister, Joseph R. Walta
  • Puncture resistant heat shrinkable film containing narrow molecular weight ethylene alpha olefin
    Patent number: 5593747
    Abstract: A biaxially stretched film with very high heat shrink and puncture resistance properties, formed of an ethylene alpha olefin copolymer having a density between about 0.88-0.905 g/m.sup.3, a low melt index not exceeding about 1.5 g/min, a Mw/Mn not exceeding about 3, and having a melting point below about 102.degree. C.
    Type: Grant
    Filed: February 24, 1995
    Date of Patent: January 14, 1997
    Assignee: Viskase Corporation
    Inventor: Paul N. Georgelos
  • Film and method for surface treatment of foodstuffs with antimicrobial compositions
    Patent number: 5573797
    Abstract: An antimicrobial composition comprising a Streptococcus-derived or Pediococcus-derived bacteriocin or synthetic equivalent antibacterial agent in combination with a chelating agent. Such composition may be used in conjunction with a foodstuff or with a food packaging film.(with or without the chelating agent) to protect foodstuffs against growth of harmful bacteria such as Listeria. Also disclosed are methods of protecting foodstuffs using film having a transferrable antimicrobial agent which may protect foodstuff surfaces before and/or following removal of the film and peelable films useful in such methods which may include the above bacteriocin.
    Type: Grant
    Filed: April 23, 1993
    Date of Patent: November 12, 1996
    Assignee: Viskase Corporation
    Inventor: Darrel L. Wilhoit
  • Surface treatment of foodstuffs with antimicrobial compositions
    Patent number: 5573801
    Abstract: An antimicrobial composition comprising a Streptococcus-derived or Pediococcus-derived bacteriocin or synthetic equivalent antibacterial agent in combination with a chelating agent. Such composition may be used in conjunction with a foodstuff or with a food packaging film (with or without the chelating agent) to protect foodstuffs against growth of harmful bacteria such as Listeria. Also disclosed are methods of protecting foodstuffs using film having a transferrable antimicrobial agent which may protect foodstuff surfaces before and/or following removal of the film and peelable films useful in such methods which may include the above bacteriocin.
    Type: Grant
    Filed: April 23, 1993
    Date of Patent: November 12, 1996
    Assignee: Viskase Corporation
    Inventor: Darrel L. Wilhoit
  • Antimicrobial composition for surface treatment of foodstuffs
    Patent number: 5573800
    Abstract: An antimicrobial composition comprising a Pediococcus-derived bacteriocin or synthetic equivalent antibacterial agent in combination with a chelating agent. Such composition may be used in conjunction with a foodstuff or with a food packaging film (with or without the chelating agent) to protect foodstuffs against growth of harmful bacteria such as Listeria. Also disclosed are methods of protecting foodstuffs using film having a transferrable antimicrobial agent which may protect foodstuff surfaces before and/or following removal of the film and peelable films useful in such methods which may include the above bacteriocin.
    Type: Grant
    Filed: April 23, 1993
    Date of Patent: November 12, 1996
    Assignee: Viskase Corporation
    Inventor: Darrel L. Wilhoit
  • Cellulose food casing manufacturing method
    Patent number: 5451364
    Abstract: In a method for forming a cellulose tube suitable for use as a food casing, in which a solution of nonderivatized cellulose, tertiary amine N-oxide and water is extruded through a die gap and the extruded tube downwardly flowed through an air length while being internally cooled, and passed into a water bath, the tube transverse direction tensile strength is substantially increased by drawing the extruded tube through an air length of at least about six inches.
    Type: Grant
    Filed: January 10, 1994
    Date of Patent: September 19, 1995
    Assignee: Viskase Corporation
    Inventors: Paul E. Ducharme, Jr., Edward M. Kajiwara, Norman A. Portnoy
  • Process of corona treating a thermoplastic tubular film
    Patent number: 5407611
    Abstract: A meat product package including an enclosing film having an EVA-containing inside surface and an in situ aqueous medium-cooked meat product in adhering relation to the film inside surface as the meat contacting and adhering surface. Starch particles are preferably dispersed across the meat contacting surface which has been both irradiated and subjected to corona treatment. A method for corona treating a thermoplastic tube inside surface in which small particles within the flat tube separate opposite surfaces providing voids, and the electric discharge crosses the flat tube through the voids.
    Type: Grant
    Filed: February 23, 1994
    Date of Patent: April 18, 1995
    Assignee: Viskase Corporation
    Inventors: Darrel L. Wilhoit, Vincent J. Dudenhoeffer
  • Method and apparatus for forming a shrinkable bag having an integral handle
    Patent number: 5393293
    Abstract: Bag making apparatus and method for forming a handle opening in a thermoplastic food packaging shrink bag includes both cold cutting and hot cut cutting operations to form a handle which, on heat shrinking the bag, is strong and has an enhanced appearance.
    Type: Grant
    Filed: March 18, 1994
    Date of Patent: February 28, 1995
    Assignee: Viskase Corporation
    Inventors: Philip F. Cilia, Vytautas Kupcikevicius
  • Method and apparatus for packaging of shirred food casings and resulting article
    Patent number: 5391108
    Abstract: The bundling together of shirred food casing sticks is accomplished by loosely supporting the sticks in a desired stack configuration, drawing a stretch film from below the stack, folding the film over the top of the stack and taping the film to itself, and then pulling the film downwardly to tighten it about the stack and heat sealing across the bottom of the stack.
    Type: Grant
    Filed: March 29, 1994
    Date of Patent: February 21, 1995
    Assignee: Viskase Corporation
    Inventor: Raymond A. Feldt
  • EVOH oxygen barrier stretched multilayer film
    Patent number: 5382470
    Abstract: A biaxially stretched oriented heat shrinkable film for food packaging comprising an EVOH-nylon 6,66 core layer, second and third intermediate adhesive layers, a self heat sealable fourth outer layer and an abuse-resistant fifth outer layer.
    Type: Grant
    Filed: April 9, 1993
    Date of Patent: January 17, 1995
    Assignee: Viskase Corporation
    Inventor: Stephen J. Vicik
  • Package of shirred food casing and method
    Patent number: 5381643
    Abstract: The invention is a package including a bundle of shirred casing sticks disposed and held together by a container which completely encloses the bundle. The container is formed insitu about the bundle from a heat shrink film which stiffens on heat shrinking to provide a self-supporting container conforming in shape generally to the bundle shape. During heat shrinking, portions of the film are insulated to prevent welding of these portions so they provide flaps which open to permit removal or replacement of sticks.
    Type: Grant
    Filed: March 12, 1993
    Date of Patent: January 17, 1995
    Assignee: Viskase Corporation
    Inventors: Michael P. Kazaitis, Robert P. Graves, Jr., Joseph L. Monti
  • Package of shirred food casings
    Patent number: 5382190
    Abstract: A package or "caddie" of fifty (50) shirred tubular sticks of food casing is formed by stacking the sticks in seven rows one on another the lowermost row containing five side-by-side stack, each of the next four rows containing one stick more than the row below and each of the top two rows having one stick less than the row below. This forms a six sided caddie wherein all internal angles as formed by the sides of the stack are 120.degree. and the perimeter of the stack is formed by a continuous unbroken progression of side-by-side sticks. A stretch film disposed transversely about the stack bundles the sticks tightly together.
    Type: Grant
    Filed: March 11, 1994
    Date of Patent: January 17, 1995
    Assignee: Viskase Corporation
    Inventor: Robert P. Graves
  • Bone-in food packaging article and use field of the invention
    Patent number: 5376394
    Abstract: A method for shrink packaging bone-in food masses such as meat cuts is disclosed, A patch bag comprising a thin-walled heat shrinkable thermoplastic film bag and a thick-walled non-heat shrinkable thermoplastic film patch having its inner surface bonded to the bag outer surface is used. Both surfaces have high energy as the sole bonding means and the patch-bag bond strength increases during heat shrinking around the meat mass such that the bag portion adhered to the patch shrinks less than the rest of the bag.
    Type: Grant
    Filed: January 21, 1994
    Date of Patent: December 27, 1994
    Assignee: Viskase Corporation
    Inventors: Vincent J. Dudenhoeffer, Jeffrey M. Schuetz
  • Package of shirred food casing and method
    Patent number: 5356007
    Abstract: A package of shirred food casing sticks Wherein the sticks are bundled together by a wrap disposed in tension transversely about the bundle and the opposite ends of the wrap are overlapped and releasably connected. The releasable connection attaches the outer surface of the underlying wrapper end to the inner surface of the overlying wrapper end and the overlying end having an outer margin which is free and loose from the connection to provide a means for grasping and pulling the overlying end free of the connector.
    Type: Grant
    Filed: August 27, 1993
    Date of Patent: October 18, 1994
    Assignee: Viskase Corporation
    Inventor: Raymond A. Feldt
  • Apparatus for making a food containing package with integral handle
    Patent number: 5354193
    Abstract: A food product package includes a bulky food product hermetically sealed in a bag of heat shrunk film. The package has an integral self-supporting handle which is formed from plies of the film and which extends out from an end of the package in a conventional handle shape. The handle is formed by causing a skirt portion of the bag to heat shrink about a rigid member positioned to maintain the skirt portion spaced from an end of the package during shrinking.
    Type: Grant
    Filed: August 27, 1993
    Date of Patent: October 11, 1994
    Assignee: Viskase Corporation
    Inventor: Vytautas Kupcikevicius
  • Heat shrinkable handle bag article
    Patent number: 5332094
    Abstract: A heat shrinkable bag having a slit cut through two plies of a skirt portion so that the skirt forms a handle upon heat shrinking. The slit is cold cut through both plies of the skirt for most of the slit length except the opposite ends of the slit are burnt through the skirt to weld the plies together at the slit ends.
    Type: Grant
    Filed: July 23, 1993
    Date of Patent: July 26, 1994
    Assignee: Viskase Corporation
    Inventors: Philip F. Cilia, Vytautas Kupcikevicius
  • Shirred fibrous casing article and method
    Patent number: 5328733
    Abstract: A shirred fibrous casing article containing about 20% to about 30% moisture by total casing weight and composed of shirred portions spliced together and retained in an overwrap wherein a flag which identifies the splice location between the shirred portions is extended radially through the overwrap.
    Type: Grant
    Filed: March 30, 1992
    Date of Patent: July 12, 1994
    Assignee: Viskase Corporation
    Inventor: Jeffery A. Oxley
  • Cellulosic food casing
    Patent number: H1592
    Abstract: Disclosed is a cellulosic food casing made from a nonderivatized cellulose and the various additives that can be incorporated onto or within the casing.
    Type: Grant
    Filed: July 15, 1994
    Date of Patent: September 3, 1996
    Assignee: Viskase Corporation
    Inventor: Myron D. Nicholson