Patents by Inventor Laurence R. Erickson

Laurence R. Erickson 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: 5243164
    Abstract: A beverage maker having a reservoir for holding liquid and a filter element for holding a substance, such as coffee grounds, for making the beverage. A partition separates the reservoir and filter element and has a heat responsive film. When the liquid in the reservoir is at or reaches a desired brewing temperature, the film opens to allow the flow of the heated liquid from the reservoir into and through the filter element and substance, such as coffee grounds, to produce a freshly brewed beverage, ready for dispensing.
    Type: Grant
    Filed: December 14, 1990
    Date of Patent: September 7, 1993
    Assignees: GEE Associates, Dowbrands, Inc.
    Inventors: Laurence R. Erickson, Michael A. Babinec, Judy J. Gunderson, M. Gary Grossman, Edward H. Meisner
  • Patent number: 4954124
    Abstract: A stand-up plastic bag has a pair of front and rear side walls defining an open bag mouth at upper edges thereof, and a pair of front and rear bottom gusset walls being disposed between the side walls. The walls are composed of a multi-layered film of different, heat-sealable, coextruded thermoplastics, such as polyethylene and Nylon. Polyethylene is on the interior surfaces and Nylon is on the exterior surfaces of the walls. The gusset walls have upper portions interconnected together to form a bottom wall extending between the front and rear side walls. The gusset walls also have lower portions joined by heat seals to lower portion of the front and rear side walls at contiguous portions of polyethylene material on their interior surfaces to form a support band which connects to and extends below the bottom wall.
    Type: Grant
    Filed: January 30, 1989
    Date of Patent: September 4, 1990
    Assignee: The Dow Chemical Company
    Inventors: Laurence R. Erickson, R. Douglas Behr, Roger D. Vrooman
  • Patent number: 4885352
    Abstract: The present invention teaches an oriented film and method for making the same. It has been found that an olefinic film, e.g. polyethylene, can be made with highly oriented crystalline phase unit cells. The film of the present invention has crystalline phase unit cells with an a-axis highly oriented in the machine direction and consequently, the improved physical properties. Specifically, the film has a good cutterbar tear, a high degree of puncture resistance and limited tear propagation in the transverse direction. The film is made by controlling the heat transfer of a chill roll to the olefinic extrudate. Heat transfer is accomplished by pinning the olefinic film with an air knife as it is extruded on the chill roll. The pin is controlled by adjusting the temperature of the chill roll and the focus velocity of th air knife.
    Type: Grant
    Filed: February 29, 1988
    Date of Patent: December 5, 1989
    Assignee: DowBrands Inc.
    Inventor: Laurence R. Erickson
  • Patent number: 4837849
    Abstract: A stand-up plastic bag has a pair of front and rear side walls defining an open bag mouth at upper edges thereof, and a pair of front and rear bottom gusset walls being disposed between the side walls. The walls are composed of a multi-layered film of different, heat-sealable, coextruded thermoplastics, such as polyethylene and Nylon. Polyethylene is on the interior surfaces and Nylon is on the exterior surfaces of the walls. The gusset walls have upper portions interconnected together to form a bottom wall extending between the front and rear side walls. The gusset walls also have lower portions joined by heat seals to lower portions of the front and rear side walls at contiguous portions of polyethylene material on their interior surfaces to form a support band which connects to and extends below the bottom wall.
    Type: Grant
    Filed: March 21, 1988
    Date of Patent: June 6, 1989
    Assignee: The Dow Chemical Company
    Inventors: Laurence R. Erickson, R. Douglas Behr, Roger D. Vrooman