Patents by Inventor Theo de Geest

Theo de Geest 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).

  • Bimetal thermostat with head collector
    Patent number: 4591822
    Abstract: A detector thermostat for fire detection systems is disclosed. Such detector thermostat includes a bimetal snap disc thermostat having a metallic disc cup which supports the snap disc. A heat collector is mounted on the disc cup in good heat transfer relationship therewith. The collector provides a flange formed with concentric circular convolutions and a circular array of projections cut from the material of the flange and extending substantially perpendicular to the flange. The projections are positioned around the disc cup and provide improved sensitivity to the flow of hot air and gases in a direction parallel to the plane of the flange.
    Type: Grant
    Filed: November 30, 1984
    Date of Patent: May 27, 1986
    Assignee: Therm-O-Disc, Incorporated
    Inventors: Douglas P. Versaw, Theo de Geest