Patents by Inventor Graham Chilvers

Graham Chilvers 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).

  • Power control apparatus
    Patent number: 8450879
    Abstract: A power control apparatus comprises a transducer having an output (12,13) which is connected to a remotely activated device (25) mounted in a mains consumer unit (14). When a predefined parameter is detected, the device (25) is activated to connect a load (29) between the switched live output (18) of a residual current device RCD (15) and the neutral input (17) thereof, thereby creating an imbalanced current flow on the live and neutral output terminals (18,19) of the RCD (15) which causes contacts (20,21) inside the RCD (15) to disconnect the supply to an appliance circuit (22).
    Type: Grant
    Filed: September 28, 2008
    Date of Patent: May 28, 2013
    Inventor: Graham Chilvers
  • Power Control Apparatus
    Publication number: 20100201206
    Abstract: A power control apparatus comprises a transducer having an output (12,13) which is connected to a remotely activated device (25) mounted in a mains consumer unit (14). When a predefined parameter is detected, the device (25) is activated to connect a load (29) between the switched live output (18) of a residual current device RCD (15) and the neutral input (17) thereof, thereby creating an imbalanced current flow on the live and neutral output terminals (18,19) of the RCD (15) which causes contacts (20,21) inside the RCD (15) to disconnect the supply to an appliance circuit (22).
    Type: Application
    Filed: September 28, 2008
    Publication date: August 12, 2010
    Inventor: Graham Chilvers