Patents by Inventor David A. Heath

David A. Heath 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).

  • Energy conservation moderating system
    Patent number: 6662866
    Abstract: An energy conservation moderating system has a DPDT switch (16) in switching communication intermediate a micro controller (8) and a temperature-difference generator (7). The micro controller is in switching control of the temperature-difference generator programmably through the DPDT switch in option to switching control of the temperature-difference generator by a conventional thermostat (1). The micro controller is preferably a Z 8 micro controller having a memory into which an application-specific program in the microcontroller is loaded for programmably plural-cycle short-time on-and-off switching for savings run times intermediate temperature-band on-call extremes and temperature-band mediums of a temperature-band fluctuation selectively.
    Type: Grant
    Filed: May 22, 2001
    Date of Patent: December 16, 2003
    Assignee: Encon International, Inc.
    Inventor: David A. Heath