Patents by Inventor Theodore J. Bartsch

Theodore J. Bartsch 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).

  • Method and apparatus for reducing the thickness of a skin formed on a slab of polyurethane foam
    Patent number: 6616886
    Abstract: Methods and apparatus for eliminating or reducing a surface skin when producing a flexible polyurethane foam slab are disclosed. The top surface of the chemically reactive polyurethane foaming mixture is heated during and/or after the foaming mixture expands. The heating preferably is conducted so as to prevent a significant temperature gradient from forming between the internal temperature of the foaming mixture and the top surface of that mixture. Preferably, heat is applied so as to heat from the top surface of the foaming mixture in an escalating fashion to higher temperatures as the foam is conveyed along a conveying path away from the foaming mixture dispensing device.
    Type: Grant
    Filed: January 31, 2001
    Date of Patent: September 9, 2003
    Assignee: Foamex L.P.
    Inventors: Bruce W. Peterson, Theodore J. Bartsch
  • Method and apparatus for reducing the thickness of a skin formed on a slab of polyurethane foam
    Publication number: 20020180084
    Abstract: Methods and apparatus for eliminating or reducing a surface skin when producing a flexible polyurethane foam slab are disclosed. The top surface of the chemically reactive polyurethane foaming mixture is heated during and/or after the foaming mixture expands. The heating preferably is conducted so as to prevent a significant temperature gradient from forming between the internal temperature of the foaming mixture and the top surface of that mixture. Preferably, heat is applied so as to heat from the top surface of the foaming mixture in an escalating fashion to higher temperatures as the foam is conveyed along a conveying path away from the foaming mixture dispensing device.
    Type: Application
    Filed: January 31, 2001
    Publication date: December 5, 2002
    Inventors: Bruce W. Peterson, Theodore J. Bartsch