Patents by Inventor Phillip A. Olson

Phillip A. Olson 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).

  • Miniature thermal switch and method of making the same
    Patent number: 4533897
    Abstract: A miniature thermal switch features simplified single-spring construction requiring only four components within an enclosure housing. None of the components requires subassembly, and all are designed for completely automated assembly of the finished switch. A fabrication method features self-alignment of the elements by means of closely confining barrier walls. A wiping action of the contacts during melting of a contact-restraining meltable pellet serves to insure an abrupt circuit interruption at the threshold temperature.
    Type: Grant
    Filed: April 28, 1983
    Date of Patent: August 6, 1985
    Assignee: Littelfuse, Inc.
    Inventors: Harry W. Olson, Phillip A. Olson