Patents by Inventor Darryl P. Hansen

Darryl P. Hansen 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).

  • Patent number: 6494023
    Abstract: A method and apparatus for inserting an oxygen scavenger into a modified atmosphere package for extending the shelf life of food, especially raw meats. A scavenger feeder feeds a chain of interconnected oxygen scavengers. A separator separates the oxygen scavenger located at an exposed end of the chain of interconnected oxygen scavengers from the chain of interconnected oxygen scavengers. An adhesive applicator applies adhesive to the oxygen scavenger which has been separated from the chain of interconnected oxygen scavengers. A conveyor conveys the separated oxygen scavenger to a position which is adjacent to a film layer which is used to form an outer package of the modified atmosphere package so that the oxygen scavenger is attached to a surface of the film layer by the adhesive. The film layer is subsequently formed into the outer package so that the oxygen scavenger that is attached to the film layer is contained within the outer package.
    Type: Grant
    Filed: August 10, 2001
    Date of Patent: December 17, 2002
    Assignee: Pactiv Corporation
    Inventors: Gary R. DelDuca, Stephen L. Goulette, Darryl P. Hansen, Vinod K. Luthra
  • Publication number: 20020020151
    Abstract: A unique method and apparatus for inserting an oxygen scavenger into a modified atmosphere package for extending the shelf life of food, especially raw meats. A scavenger feeding means feeds a chain of interconnected oxygen scavengers. A separating means separates the oxygen scavenger located at an exposed end of the chain of interconnected oxygen scavengers from the chain of interconnected oxygen scavengers. An adhesive application means applies adhesive to the oxygen scavenger which has been separated from the chain of interconnected oxygen scavengers. A conveyor means conveys the separated oxygen scavenger to a position which is adjacent to a film layer which is used to form an outer package of the modified atmosphere package so that the oxygen scavenger is attached to a surface of the film layer by the adhesive. The film layer is subsequently formed into the outer package so that the oxygen scavenger that is attached to the film layer is contained within the outer package.
    Type: Application
    Filed: August 10, 2001
    Publication date: February 21, 2002
    Inventors: Gary R. DelDuca, Stephen L. Goulette, Darryl P. Hansen, Vinod K. Luthra
  • Patent number: 6321509
    Abstract: A unique method and apparatus for inserting an oxygen scavenger into a modified atmosphere package for extending the shelf life of food, especially raw meats. A scavenger feeder feeds a chain of interconnected oxygen scavengers. A separator separates the oxygen scavenger located at an exposed end of the chain of interconnected oxygen scavengers from the chain of interconnected oxygen scavengers. An adhesive applicator applies adhesive to the oxygen scavenger which has been separated from the chain of interconnected oxygen scavengers. A conveyor conveys the separated oxygen scavenger to a position which is adjacent to a film layer which is used to form an outer package of the modified atmosphere package so that the oxygen scavenger is attached to a surface of the film layer by the adhesive. The film layer is subsequently formed into the outer package so that the oxygen scavenger that is attached to the film layer is contained within the outer package.
    Type: Grant
    Filed: June 11, 1999
    Date of Patent: November 27, 2001
    Assignee: Pactiv Corporation
    Inventors: Gary R. DelDuca, Stephen L. Goulette, Darryl P. Hansen, Vinod K. Luthra
  • Patent number: 6132781
    Abstract: A modified atmosphere package includes first and second compartments separated by a partition member that is substantially permeable to oxygen. The first compartment contains an oxygen scavenger activated with an oxygen scavenger accelerator. The second compartment contains a retail cut of raw meat. Various techniques are employed to rapidly reduce the oxygen level in the second compartment below pigment sensitive levels so that the growth of metmyoglobin is inhibited. Some of these techniques increase the flow of oxygen from the second compartment to the first compartment through the partition member, while other techniques directly absorb oxygen within the second compartment by locating a second oxygen scavenger within the second compartment.
    Type: Grant
    Filed: December 17, 1999
    Date of Patent: October 17, 2000
    Assignee: Pactiv Corporation
    Inventors: Daniel G. Carr, Glenn C. Castner, Gary R. DelDuca, Rollie H. DeMay, Alan E. Deyo, Stephen L. Goulette, Darryl P. Hansen, Vinod K. Luthra, Allen J. Norby, Robert A. Sloan, Jill F. Thompson
  • Patent number: 6054153
    Abstract: A modified atmosphere package includes first and second compartments separated by a partition member that is substantially permeable to oxygen. The first compartment contains an oxygen scavenger activated with an oxygen scavenger accelerator. The second compartment contains a retail cut of raw meat. Various techniques are employed to rapidly reduce the oxygen level in the second compartment below pigment sensitive levels so that the growth of metmyoglobin is inhibited. Some of these techniques increase the flow of oxygen from the second compartment to the first compartment through the partition member to a level inhibiting the formation of metmyoglobin in the raw meat.
    Type: Grant
    Filed: April 3, 1998
    Date of Patent: April 25, 2000
    Assignee: Tenneco Packaging Inc.
    Inventors: Daniel G. Carr, Glenn C. Castner, Gary R. DelDuca, Rollie H. DeMay, Alan E. Deyo, Stephen L. Goulette, Darryl P. Hansen, Vinod K. Luthra, Allen J. Norby, Robert A. Sloan, Jill F. Thompson
  • Patent number: 5607709
    Abstract: A container for deli food has a base and a removable lid with male and female locking members extending around the periphery thereof. Stiff tabs extend from the periphery of the base and the lid. The tabs are displaced one from the other for easy opening of the container. The tabs are embossed with visual instructions for unlocking, The base of the container is formed of opaque plastic and the lid is clear plastic. The plastic materials are suitable for placing the container in a warming oven and for reheating the food in a microwave oven.
    Type: Grant
    Filed: November 27, 1991
    Date of Patent: March 4, 1997
    Assignee: Tenneco Plastics Company
    Inventors: Jill A. Fritz, Darryl P. Hansen
  • Patent number: 5287959
    Abstract: A domed container. The container includes a receptacle and dome cover therefore having locking means for releasably locking the cover to the receptacle. The receptacle includes a bottom wall having a top surface delimited by an upstanding rib and terminating in an outwardly extending resilient rim.
    Type: Grant
    Filed: May 3, 1993
    Date of Patent: February 22, 1994
    Assignee: Mobil Oil Corporation
    Inventors: Darryl P. Hansen, Raj K. Mangla, Raul Matos, Dennis Oberdorf, Chris Olenski
  • Patent number: D341316
    Type: Grant
    Filed: January 16, 1992
    Date of Patent: November 16, 1993
    Assignee: Mobil Oil Corporation
    Inventors: Jill A. Fritz, Darryl P. Hansen
  • Patent number: D352000
    Type: Grant
    Filed: August 6, 1993
    Date of Patent: November 1, 1994
    Assignee: Mobil Oil Corporation
    Inventors: Darryl P. Hansen, Raj K. Mangla, Raul Matos, Dennis Oberdorf, Chris Olenski