Patents by Inventor Paul A. Lesser

Paul A. Lesser 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).

  • Features of a condition responsive switch
    Patent number: 4581509
    Abstract: A thermal or pressure responsive switch has a base mounting a set of electrical contacts. A metallic snap acting disc support, placed on the base is provided with a bore which receives a pin to transfer motion from a disc mounted on the support to the set of electrical contacts upon snapping of the disc.A first embodiment has a pressure converter received on the disc support. The peripheral edge of the snap acting disc is received on a seat formed in the converter with an annular reaction ridge formed on the support.A second embodiment has a pressure converter with the peripheral edge of the snap acting disc received on a seat formed in the disc support and an annular force ridge on the converter is adapted to contact the upper surface of the disc. In either embodiment a layer of low friction plastic can be placed on both faces of the disc.A third embodiment has a flat metallic disc support with a recessed portion for receiving the disc and a continuous stop surface.
    Type: Grant
    Filed: July 20, 1984
    Date of Patent: April 8, 1986
    Assignee: Texas Instruments Incorporated
    Inventors: Carlton E. Sanford, Paul A. Lesser