Patents by Inventor Svend E. Winther

Svend E. Winther 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).

  • Hydraulic actuator to provide both rotary and linear motions to a movable valve
    Patent number: 4192482
    Abstract: A hydraulic cylinder is provided with pistons to provide both rotary and a linear motions; utilization of a built in check valve traps fluid pressure to sustain piston in a desired operating position.
    Type: Grant
    Filed: October 20, 1978
    Date of Patent: March 11, 1980
    Assignee: Allis-Chalmers Corporation
    Inventors: Holliday L. Goldman, Svend E. Winther