Patents by Inventor Paul Neilson Unmack

Paul Neilson Unmack 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).

  • Absorption refrigeration protective controller
    Patent number: 8056360
    Abstract: The present invention provides an improved control system and method for the absorption refrigeration process. The system includes sensors that measure the absorption process in order to determine if the absorption cycle is continuous. A control unit in communication with the sensors which compares the measured sensor values to predetermined safe limits. When the control unit determines that safe limits have been exceeded, the control unit communicates with actuators adjusting the absorption cycle heat source, ultimately protecting the absorption refrigeration process from damage. Further, the control may reestablish the absorption cycle heat source when predetermined safe operation conditions are detected.
    Type: Grant
    Filed: July 3, 2007
    Date of Patent: November 15, 2011
    Inventor: Paul Neilson Unmack
  • Absorption refrigeration protective controller
    Publication number: 20080115513
    Abstract: The present invention provides an improved control system and method for the absorption refrigeration process. The system includes sensors that measure the absorption process in order to determine if the absorption cycle is continuous. A control unit in communication with the sensors which compares the measured sensor values to predetermined safe limits. When the control unit determines that safe limits have been exceeded, the control unit communicates with actuators adjusting the absorption cycle heat source, ultimately protecting the absorption refrigeration process from damage. Further, the control may reestablish the absorption cycle heat source when predetermined safe operation conditions are detected.
    Type: Application
    Filed: July 3, 2007
    Publication date: May 22, 2008
    Inventor: Paul Neilson Unmack