Patents by Inventor Denis V. Butler

Denis V. Butler 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).

  • Fluid switch with reflected shock wave
    Patent number: 4202374
    Abstract: A switch arrangement in which shock wave energy is utilized to switch the path of a fluid through a fluidic device, the switch arrangement being such that a reflector is employed to direct the shock wave to a desired position in the switch arrangement.
    Type: Grant
    Filed: February 24, 1978
    Date of Patent: May 13, 1980
    Assignee: Plessey Handel und Investments AG
    Inventor: Denis V. Butler
  • Method of producing chaff
    Patent number: 4162209
    Abstract: A method of producing chaff, which method comprises sputtering a coating of a metal on to a plurality of carrier filaments and cutting the coated filaments into small pieces, the metal and the filaments being so chosen that the modulus of elasticity of the metal is not greater than the modulus of elasticity of the filaments.
    Type: Grant
    Filed: January 13, 1978
    Date of Patent: July 24, 1979
    Assignee: Plessey Handel und Investments AG
    Inventor: Denis V. Butler