Patents by Inventor Brian G. Pidgeon

Brian G. Pidgeon 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).

  • Electromagnetic position detector employing fast fourier transform analysis
    Patent number: 4443792
    Abstract: A high frequency signal is beamed into a bunker and a reflected signal from the top of the contents in the bunker is detected and fed into electronic circuitry. This circuitry obtains a beat signal dependent in frequency on the height of material in the bunker and the signal is subjected to division in a processing circuit and subsequent treatment as a Fast Fourier transform. A store gathers all divided and transformed segments of the signal to provide a spectrum from which the level of the bunker can be obtained as a read out.
    Type: Grant
    Filed: August 11, 1981
    Date of Patent: April 17, 1984
    Assignee: Coal Industry (Patents) Limited
    Inventors: Brian G. Pidgeon, Clive R. Bavington
  • Controlled bunker systems
    Patent number: 4138010
    Abstract: An automatically controlled bunker system includes a plurality of sensor means for sensing various operational conditions within the bunker system and for deriving signals indicative of the sensed operational conditions. The derived signals are fed to control means which control operation of the bunker system in accordance with the sensed operational conditions.
    Type: Grant
    Filed: May 27, 1977
    Date of Patent: February 6, 1979
    Assignee: Coal Industry (Patents) Limited
    Inventors: Brian G. Pidgeon, Joseph Dowell