Patents by Inventor Richard Wakefield

Richard Wakefield 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).

  • Apparatus for detecting a flammable atmosphere within a compressor, in particular a vacuum pump
    Patent number: 8333573
    Abstract: Apparatus for detecting a flammable atmosphere within a compressor during operation thereof is provided. The apparatus comprising a test chamber which is selectably connected between the compressor and an exhaust duct of the compressor using isolation device; an ignition device which is located within the test chamber for igniting any flammable fluid mixture present therein; and sensor associated with the test chamber for monitoring a parameter indicative of combustion within the test chamber and for outputting a signal indicative of the parameter to a controller.
    Type: Grant
    Filed: November 9, 2006
    Date of Patent: December 18, 2012
    Assignee: Edwards Limited
    Inventors: Clive Marcus Lloyd Tunna, Donovan Collins, Roland Paul Gregor Kusay, Richard Wakefield