Patents by Inventor Douglas P. Versaw

Douglas P. Versaw 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).

  • Bubbler
    Patent number: 5472140
    Abstract: A one-piece casting for a water fountain bubbler having a cavity for a flow regulator cartridge, an inlet port, and inlet and outlet passages all integrally cast therein.
    Type: Grant
    Filed: July 8, 1994
    Date of Patent: December 5, 1995
    Assignee: Therm-O-Disc, Incorporated
    Inventors: Douglas P. Versaw, Max L. Green
  • Trip free thermostat
    Patent number: 5157370
    Abstract: A manually resettable trip free thermostat that has simple construction and a pivotable stationary contact arm that enables the thermostat to be reset while maintaining the contacts in an open condition.
    Type: Grant
    Filed: January 29, 1992
    Date of Patent: October 20, 1992
    Assignee: Therm-O-Disc, Incorporated
    Inventors: Brian W. Engelbach, Douglas P. Versaw
  • Heat collector
    Patent number: 4827239
    Abstract: A heat collector for thermostatic fire detectors comprises a one-piece circular metal member having a closed central depression that forms the bottom of a bimetal snap disc chamber in a thermostatic switch.
    Type: Grant
    Filed: December 21, 1987
    Date of Patent: May 2, 1989
    Assignee: Therm-O-Disc, Incorporated
    Inventors: Douglas P. Versaw, Ronald L. Holden
  • Sealed thermostat for use in defrost control systems
    Patent number: 4626821
    Abstract: A sealed bimetal snap disc thermostat is disclosed which is suitable for use in environmental locations in which severe thermocycling occurs. The thermostat provides a disc cup having an imperforate end wall which is the only portion of the thermostat per se which is exposed. A non-metallic enclosure cup is formed with an aperture closely encircling the disc cup and which defines a cavity surrounding the remaining portions of the thermostat. A sealing compound, such as epoxy, fills such cavity. The disc cup is crimped onto the thermostat body and provides an extended portion which is spaced from the thermostat body so that the sealing adhesive provides an interface of substantial area with the metal disc cup to assure a continuing seal. Because the sealant and enclosure cup surround the entire thermostat except for the disc cup, the thermostat is thermally insulated from its environment except for the disc cup end face.
    Type: Grant
    Filed: November 4, 1985
    Date of Patent: December 2, 1986
    Assignee: Thermo-O-Disc, Incorporated
    Inventor: Douglas P. Versaw
  • 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