Patents by Inventor Sven Gunnar Kison Lundholm

Sven Gunnar Kison Lundholm 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).

  • Seal for piston rod of Stirling engine
    Patent number: 4083566
    Abstract: A Stirling cycle hot gas engine is provided with a seal about a moving piston rod for limiting leakage of gas from a high pressure working chamber into a low pressure crank casing. The seal is a conically shaped plastic ring urged against the piston rod by mating spring loaded metal wedge rings.
    Type: Grant
    Filed: July 18, 1974
    Date of Patent: April 11, 1978
    Assignee: Kommanditbolaget United Stirling (Sweden) AB & Co.
    Inventors: John Ingemar Bengtsson, Sven Anders Samuel Hakansson, Sven Gunnar Kison Lundholm, Lars Lonnberg