Patents by Inventor Jan Sjöholm

Jan Sjöholm 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).

  • Microwave resonator with dielectric tuning body resiliently secured to a movable rod by spring means
    Patent number: 6255922
    Abstract: A microwave resonator comprising a cavity (7) with a dielectric resonator device (8, 11) including a movable dielectric tuning body (11), which is mechanically coupled to an electrical motor (28). The tuning body is carried by an electrically nonconductive rod (12, 13) which is provided with a resiliently biassed (19) clamping element (15) adapted to clamp the plunger (11) against a stop means (14) on the rod.
    Type: Grant
    Filed: January 12, 2000
    Date of Patent: July 3, 2001
    Assignee: Allogon AB
    Inventors: Jan Malmström, Jan Sjöholm, Joakim Ostin