Patents by Inventor Donald Victor McNemar

Donald Victor McNemar 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 affecting defrost operations for a refrigeration system
    Patent number: 7716936
    Abstract: A method for affecting a scheduled defrost operation for a refrigeration system includes the steps of: (a) after an extant the scheduled defrost operation commences, evaluating at least one predetermined parameter relating to operation of the refrigeration system; (b) if the at least one predetermined parameter manifests a behavior of at least one first predetermined nature over at least one first time interval, continuing the extant scheduled defrost operation; and (c) if the at least one predetermined parameter manifests a behavior of at least one second predetermined nature over at least one second time interval, discontinuing the extant scheduled defrost operation.
    Type: Grant
    Filed: June 26, 2006
    Date of Patent: May 18, 2010
    Assignee: Heatcraft Refrigeration Products, L.L.C.
    Inventors: Patrick M. Bailey, Ira Zelman Richter, Donald Victor McNemar
  • Method and apparatus for affecting defrost operations for a refrigeration system
    Publication number: 20070295015
    Abstract: A method for affecting a scheduled defrost operation for a refrigeration system includes the steps of: (a) after an extant the scheduled defrost operation commences, evaluating at least one predetermined parameter relating to operation of the refrigeration system; (b) if the at least one predetermined parameter manifests a behavior of at least one first predetermined nature over at least one first time interval, continuing the extant scheduled defrost operation; and (c) if the at least one predetermined parameter manifests a behavior of at least one second predetermined nature over at least one second time interval, discontinuing the extant scheduled defrost operation.
    Type: Application
    Filed: June 26, 2006
    Publication date: December 27, 2007
    Inventors: Patrick M. Bailey, Ira Zelman Richter, Donald Victor McNemar