Patents by Inventor Carlen E. Larson

Carlen E. Larson 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).

  • Solenoid having non-rotating plunger
    Patent number: 4262271
    Abstract: An electromagnetic solenoid incorporating a plunger return mechanism comprising a spring retainer non-rotatably fitted to the plunger, and a spring held in compression between the retainer and a coil wound bobbin disposed about the plunger. The spring is held non-rotatable with respect to the bobbin and the plunger, and the plunger is non-rotatable with respect to the bobbin so that the spring cannot unwind with respect to the spring retainer.
    Type: Grant
    Filed: January 7, 1980
    Date of Patent: April 14, 1981
    Assignee: General Motors Corporation
    Inventors: William S. Bowers, Thomas M. Herman, Carlen E. Larson