Patents by Inventor Heather Alldridge

Heather Alldridge 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).

  • Domestic combined heat and power unit
    Publication number: 20050138926
    Abstract: A DCHP unit with a Stirling engine (1), a burner (3) and a supplementary burner (11). Water is heated by exhaust gas from the Stirling engine and from the supplementary burner. If a sensor (18) detects that the water temperature has risen indicating that there is insufficient demand for the heat in the exhaust gas, a fan (15), (20) which normally provides the flow of air to the supplementary burner is operated without firing the burner to generate a flow of cool air to cool the water.
    Type: Application
    Filed: December 18, 2002
    Publication date: June 30, 2005
    Inventors: Adrian Richardson, Heather Alldridge