Patents by Inventor Paul Frederick Dudley

Paul Frederick Dudley 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).

  • Publication number: 20110174463
    Abstract: A water heating system, in which water from a relatively low pressure closed-loop heated water circuit flows through a heat exchanger, through which a relatively high pressure mains cold water feed also flows, to supply both a demand for hot water from the high pressure circuit and/or a demand from heated water consumers such as radiators or showers, is characterised by the feature that the low pressure heated water always flows first through the heat exchanger before supplying any of the heated water consumers; or by the feature that flow restrictors are incorporated into the heat exchanger circuit infeed; or both.
    Type: Application
    Filed: May 11, 2009
    Publication date: July 21, 2011
    Inventor: Paul Frederick Dudley