Patents by Inventor Darrell L. Wilhoit
Darrell L. Wilhoit has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20140031186Abstract: A bag has a reinforcement that is configured in a predetermined manner for reinforcing at least a portion of the bag. One or more predetermined areas of the bag may be reinforced. The bag may have one or more layers, and may be reinforced by placing and affixing reinforcing media in selected areas. The nature of the reinforcing media—its dimensions and structural properties—may be selected with respect to targeted uses of the bag. The bag may be subjected to one or more types of potentially failure-causing strain (e.g. bending, twisting, puncture, tensile, compression) during the useful life of the bag. For example, the bag may be stressed during filling the bag with product, top sealing, conveying by hand or machine, loading and stacking, transportation, storage, selling and final use by the consumer.Type: ApplicationFiled: October 1, 2013Publication date: January 30, 2014Applicant: Graphic Packaging International, Inc.Inventors: Gabriele R. Holmes, Darrel L. Wilhoit, John C. Files
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Patent number: 8579507Abstract: A bag has a reinforcement that is configured in a predetermined manner for reinforcing at least a portion of the bag. One or more predetermined areas of the bag may be reinforced. The bag may have one or more layers, and may be reinforced by placing and affixing reinforcing media in selected areas. The nature of the reinforcing media—its dimensions and structural properties—may be selected with respect to targeted uses of the bag. The bag may be subjected to one or more types of potentially failure-causing strain (e.g. bending, twisting, puncture, tensile, compression) during the useful life of the bag. For example, the bag may be stressed during filling the bag with product, top sealing, conveying by hand or machine, loading and stacking, transportation, storage, selling and final use by the consumer.Type: GrantFiled: August 27, 2010Date of Patent: November 12, 2013Assignee: Graphic Flexible Packaging, LLCInventors: Gabriele R. Holmes, Darrel L. Wilhoit, John C. Files
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Publication number: 20110052106Abstract: A bag has a reinforcement that is configured in a predetermined manner for reinforcing at least a portion of the bag. One or more predetermined areas of the bag may be reinforced. The bag may have one or more layers, and may be reinforced by placing and affixing reinforcing media in selected areas. The nature of the reinforcing media—its dimensions and structural properties—may be selected with respect to targeted uses of the bag. The bag may be subjected to one or more types of potentially failure-causing strain (e.g. bending, twisting, puncture, tensile, compression) during the useful life of the bag. For example, the bag may be stressed during filling the bag with product, top sealing, conveying by hand or machine, loading and stacking, transportation, storage, selling and final use by the consumer.Type: ApplicationFiled: August 27, 2010Publication date: March 3, 2011Applicant: GRAPHIC PACKAGING INTERNATIONAL, INC.Inventors: Gabriele R. Holmes, Darrel L. Wilhoit, John C. Files
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Patent number: 5573801Abstract: 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: GrantFiled: April 23, 1993Date of Patent: November 12, 1996Assignee: Viskase CorporationInventor: Darrel L. Wilhoit
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Patent number: 5573797Abstract: 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: GrantFiled: April 23, 1993Date of Patent: November 12, 1996Assignee: Viskase CorporationInventor: Darrel L. Wilhoit
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Patent number: 5573800Abstract: 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: GrantFiled: April 23, 1993Date of Patent: November 12, 1996Assignee: Viskase CorporationInventor: Darrel L. Wilhoit
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Patent number: 5407611Abstract: 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: GrantFiled: February 23, 1994Date of Patent: April 18, 1995Assignee: Viskase CorporationInventors: Darrel L. Wilhoit, Vincent J. Dudenhoeffer
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Patent number: 5403668Abstract: A method of manufacturing a biaxially oriented heat-shrinkable food packaging film comprising a three component blend wherein the major constituents are a polyethylene, such as, VLDPE or LLDPE or a mixture thereof, EVA, and an ethylene alpha-olefin plastomer copolymer of a density below about 0.90 g/cm.sup.3.Type: GrantFiled: January 14, 1994Date of Patent: April 4, 1995Assignee: Viskase CorporationInventor: Darrel L. Wilhoit
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Patent number: 5397640Abstract: An improved biaxially oriented heat-shrinkable film of the type used for packaging food, such as poultry, processed meat, and fresh meat.Type: GrantFiled: January 31, 1994Date of Patent: March 14, 1995Assignee: Viskase CorporationInventors: Paul N. Georgelos, James E. Pelkie, Darrel L. Wilhoit
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Patent number: 5328705Abstract: 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: GrantFiled: April 23, 1992Date of Patent: July 12, 1994Assignee: Viskase CorporationInventors: Darrell L. Wilhoit, Vincent J. Dudenhoeffer
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Patent number: 5304385Abstract: A shirred tubular thermoplastic casing article of an ethylene polymer film with a substantially mineral oil-free liquid lubricating coating on the outside surface of the casing, and in contact with the ethylene polymer film, with preferred coatings being polyhydric alcohols such as 1, 2 propylene glycol or glycerine in water, or an aqueous dispersion of lecithin, and a method of manufacturing the article and method for making a processed foodstuff using the article.Type: GrantFiled: June 15, 1993Date of Patent: April 19, 1994Assignee: Viskase CorporationInventors: Darrel L. Wilhoit, Jeffery A. Oxley
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Patent number: 5283128Abstract: A biaxially heat-shrinkable food packaging film comprises a three component blend wherein the major constituents are a polyethylene such as VLDPE or LLDPE or a mixture thereof, EVA and an ethylene alpha-olefin plastomer copolymer of a density below about 0.90 g/cm.sup.3.Type: GrantFiled: March 23, 1992Date of Patent: February 1, 1994Assignee: Viskase CorporationInventor: Darrell L. Wilhoit
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Patent number: 5256458Abstract: A shirred tubular thermoplastic casing article of an ethylene polymer film with a substantially mineral oil-free liquid lubricating coating on the outside surface of the casing, and in contact with the ethylene polymer film, with preferred coatings being polyhydric alcohols such as 1, 2 propylene glycol or glycerine in water, or an aqueous dispersion of lecithin, and a method of manufacturing the article and method for making a processed foodstuff using the article.Type: GrantFiled: September 18, 1990Date of Patent: October 26, 1993Assignee: Viskase CorporationInventors: Jeffery A. Oxley, Darrel L. Wilhoit
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Patent number: 4842022Abstract: An anisotropic pressure sensitive adhesive tape for splicing cellulosic casing which includes a highly extensible isotropic backing and a plurality of filaments arranged on the backing. The filaments are arranged to restrain the extensibility of the tape in one direction so as to produce an anisotropic tape wherein the ratio of longitudinal to transverse stretch is on the order of 10:1 to 20:1.Type: GrantFiled: March 31, 1988Date of Patent: June 27, 1989Assignee: Viskase CorporationInventors: Jeffery A. Oxley, Darrel L. Wilhoit
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Patent number: 4372815Abstract: This invention is directed to a method for upgrading cellulose by treating same with a chemical to produce a cellulose sheet having substantially increased absorbency, bulk and softness properties. The chemical system comprises the reaction product of a cyanuric halide compound and an alkylene oxide compound, respectively.Type: GrantFiled: August 17, 1981Date of Patent: February 8, 1983Assignee: Crown Zellerbach CorporationInventors: David D. Newkirk, Darrel L. Wilhoit