Patents by Inventor Martin Mtichell Zentner

Martin Mtichell Zentner 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: 6772597
    Abstract: An adaptive defrost control includes a microcomputer for controlling the initiation and termination of a defrost operation based, at least in part, on opening of the fresh food door and the freezer door. The control monitors the compressor run time and the fresh food and freezer door open times and adjusts the time until defrost accordingly. A pre-chill operation cools the freezer prior to defrosting the evaporator coils so that the defrost heat will have less of an affect on the maximum temperature after defrost, and enables the freezer compartment to be maintained at a temperature a few degrees higher than with known refrigerators, providing energy savings.
    Type: Grant
    Filed: October 14, 1999
    Date of Patent: August 10, 2004
    Assignee: General Electric Company
    Inventors: Martin Mtichell Zentner, Rollie Richard Herzog, Peter Brand, Gary Lester Chastine, Matthew Graham Taylor, Tam Nolan