Patents by Inventor David W. Clow

David W. Clow 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).

  • Temperature responsive switch with shape memory actuator
    Patent number: 6239686
    Abstract: A temperature actuated switch having a resilient switch blade that is movable between open and closed positions and extends perpendicular to an elongated actuator of shape memory alloy. The actuator has an elongated deformed shape at normal temperatures and a contracted recovered shape at an elevated temperature. An end portion of the actuator is attached to the switch blade to provide movement of same between open and closed positions as the actuator changes between its deformed and recovered shapes.
    Type: Grant
    Filed: August 6, 1999
    Date of Patent: May 29, 2001
    Assignee: Therm-O-Disc, Incorporated
    Inventors: Philip B. Eder, William F. Quinn, Mark A. Roberts, Richard E. Welch, David W. Clow