Patents by Inventor Thomas Robert Hapner

Thomas Robert Hapner 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).

  • Multiple cell heat transfer system
    Patent number: 8282017
    Abstract: A heat transfer system comprises a plurality of cells, a plurality of heating elements, and a controller for independently controlling the plurality of heating elements. The heat transfer system is capable of maintaining a fluid temperature within a predetermined range. A second pump pumps fluid through a heat exchanger in operative relationship with the blower upon a call for heat.
    Type: Grant
    Filed: November 2, 2007
    Date of Patent: October 9, 2012
    Assignee: Tube Fabrication Design, Inc.
    Inventors: Samuel David Hawkins, Thomas Robert Hapner
  • MULTIPLE CELL LIQUID HEAT PUMP SYSTEM AND METHOD
    Publication number: 20090114732
    Abstract: A system and method having a plurality of cells and a plurality of heating elements and a controller for independently controlling the plurality of heating elements. The heat pump is capable of maintaining a fluid temperature within a predetermined range. A second pump pumps fluid through a heat exchanger in operative relationship with the blower upon a call for heat.
    Type: Application
    Filed: November 2, 2007
    Publication date: May 7, 2009
    Applicant: TUBE FABRICATION DESIGN, INC.
    Inventors: Samuel David Hawkins, Thomas Robert Hapner