Patents by Inventor Bjorn E. Vidinghoff

Bjorn E. Vidinghoff 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).

  • Patent number: 4178831
    Abstract: Apparatus for supporting and elevating a gun barrel, wherein a pair of telescoping cyclinders are attached to the barrel and frame of the gun, respectively. A piston assembly positioned between the cylinders supports the unbalanced weight of the barrel against a fluid medium with a control valve varying the resulting pressure ratio during elevation of the barrel.
    Type: Grant
    Filed: June 27, 1977
    Date of Patent: December 18, 1979
    Assignee: AB Bofors
    Inventors: Gustav H. Tidemalm, Bjorn E. Vidinghoff
  • Patent number: 4158324
    Abstract: The present invention relates to a pair of hydraulically operated cylinder assemblies adaptable for positioning the barrel of an artillery weapon and including novel hydraulic dampening assemblies for controlling the speed of movement of the barrel.
    Type: Grant
    Filed: June 27, 1977
    Date of Patent: June 19, 1979
    Assignee: AB Bofors
    Inventors: Gustav H. Tidemalm, Bjorn E. Vidinghoff