Patents by Inventor Jan Malmström

Jan Malmström 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
  • Tuning assembly for a dielectrical resonator in a cavity
    Patent number: 6222428
    Abstract: A tuning assembly for tuning the resonant frequency of a dielectric resonator in a cavity. The assembly includes a first resonator body (21) secured to a tubular sleeve portion (33) mounted in an opening (14a) of a mounting wall (14). The sleeve portion (33) is spring loaded so as to exert a clamping force on the first resonator body (21). A second resonator body (22) is secured to a shaft (35) which is journalled inside the tubular sleeve portion (31). The tubular sleeve portion (33) and the shaft (35) are axially slidable in relation to each other, whereby the position of one of the resonator bodies (22) is precisely adjustable in relation to the other resonator body (21).
    Type: Grant
    Filed: June 15, 1999
    Date of Patent: April 24, 2001
    Assignee: Allgon AB
    Inventors: Daniel Akesson, Jan Malmström