Patents by Inventor Theodore David Williams

Theodore David Williams 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).

  • Refrigeration system
    Patent number: 7600392
    Abstract: A refrigeration system for merchandisers, drug cabinets and similar enclosures (10) that continues to provide temperature control during periods when external power is not necessarily available. The system typically has a compressor/condenser subsystem (11) that is powered by mains electricity (16) and a second subsystem (12) that includes an insulated eutectic tank. The compressor/condensor (11) cools the tank (12) using external electrical power, when available, while the tank cools the enclosure (10) without requiring external power. A refrigerant loop (14) between the second subsystem (12) and the enclosure (10) operates by way of convection and/or gravity and a simple controller (15).
    Type: Grant
    Filed: July 22, 2005
    Date of Patent: October 13, 2009
    Assignee: ERA (Environmental Refigeration Alternatives) Pty Ltd
    Inventors: Theodore David Williams, Peter Kenneth Courtenay
  • Refrigeration System
    Publication number: 20080092559
    Abstract: A refrigeration system for merchandisers, drug cabinets and similar enclosures (10) that continues to provide temperature control during periods when external power is not necessarily available. The system typically has a compressor/condenser subsystem (11) that is powered by mains electricity (16) and a second subsystem (12) that includes an insulated eutectic tank. The compressor/condensor (11) cools the tank (12) using external electrical power, when available, while the tank cools the enclosure (10) without requiring external power. A refrigerant loop (14) between the second subsystem (12) and the enclosure (10) operates by way of convection and/or gravity and a simple controller (15).
    Type: Application
    Filed: July 22, 2005
    Publication date: April 24, 2008
    Applicant: ERA (Environmental Refrigeration Alternatives) PTY LTD.
    Inventors: Theodore David Williams, Peter Kenneth Courtenay