Patents by Inventor Walter V. Marbach

Walter V. Marbach 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).

  • Piercing blade temperature control
    Patent number: 4140046
    Abstract: A sheet piercing blade used to form perforate separation lines across continuous strip partible flattened tubular plastic film packaging bags is maintained a preselected optimum operating temperature by a heat transfer fluid medium circulating through a duct in substantially contiguous contact with the blade, a heat exchanger, and conduits connecting the duct and the heat exchanger.
    Type: Grant
    Filed: June 13, 1977
    Date of Patent: February 20, 1979
    Assignee: Union Carbide Corporation
    Inventor: Walter V. Marbach
  • Zone regulation of casing inflation gas
    Patent number: 3938220
    Abstract: Inflation gas pressure interior of a flexible tubing, such as a food casing, advancing continuously through multiple processing zones, is controlled variably from zone to zone by coacting metering rolls and gas pumping nip rolls arranged on the tubing travel locus.
    Type: Grant
    Filed: May 8, 1974
    Date of Patent: February 17, 1976
    Assignee: Union Carbide Corporation
    Inventors: Arthur L. Sheridan, Walter V. Marbach