Patents by Inventor Wilbur L. Ogden

Wilbur L. Ogden 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).

  • Fire detector
    Patent number: 4020479
    Abstract: An improved early warning fire detector of the ionization type is provided wherein detection circuitry having adjustable sensitivity is connected to an ionization chamber responsive to products of combustion. A supervisory circuit monitors the unit to assure that power is applied to the unit, that the detecting circuitry is operative and that the unit is operating at the proper sensitivity.
    Type: Grant
    Filed: February 7, 1975
    Date of Patent: April 26, 1977
    Assignee: Pittway Corporation
    Inventors: Frederick J. Conforti, Wilbur L. Ogden
  • Detection of products of combustion
    Patent number: RE28915
    Abstract: A self-contained, self-powered, early warning fire detector and alarm of small size and attractive appearance especially adapted for use in residences; the detector including readily accessible sensitivity control and operability test means, and having a standby power source which additionally serves to monitor the primary power source and inform occupants of malfunction of the primary power source.
    Type: Grant
    Filed: July 13, 1973
    Date of Patent: July 20, 1976
    Assignee: BRK Shareholders' Committee
    Inventors: Wilbur L. Ogden, Clarence Glenn Henderson