Patents by Inventor Herman Fokker

Herman Fokker 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).

  • Variable angle swashplate drive
    Patent number: 4168632
    Abstract: A swashplate drive in which the plate is tiltable between a minimum angle .alpha. and a maximum angle .alpha. and one or more drive rods each have a drive rod head with two spherical surfaces which are contacted by two sliding bodies, the other, flat side of the bodies engaging two running surfaces on the plate. The running surfaces are spaced apart a selected distance which minimizes variation in play between the plate, sliding bodies and drive rod head.
    Type: Grant
    Filed: June 20, 1977
    Date of Patent: September 25, 1979
    Assignee: U.S. Philips Corporation
    Inventor: Herman Fokker
  • Hot-gas engine with protected heat reservoir
    Patent number: 4126995
    Abstract: A hot-gas engine in which the transfer of heat from the heat-source to the meltable material of a heat storage reservoir is effected exclusively indirectly via the working medium in order to prevent overheating, fast corrosion and cracking of the reservoir walls.
    Type: Grant
    Filed: June 2, 1977
    Date of Patent: November 28, 1978
    Assignee: U.S. Philips Corporation
    Inventors: George A. A. Asselman, Herman Fokker, Roelf J. Meijer