Patents by Inventor Thomas William Shoaff

Thomas William Shoaff 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).

  • Aspirated detector
    Patent number: 6166648
    Abstract: An aspirated-type detector includes a housing with an internal ambient condition sensing region and a sensor carried therein. The housing is perforated with ambient atmosphere inflow ports. A fan or similar device lowers the pressure in the internal region thereby producing a positive inflow of adjacent, external ambient atmosphere into the sensing region. Alternatively, the fan can be operated to inject exterior ambient atmosphere into the sensing chamber under positive pressure. The fan can also be modularized. The detector can incorporate control circuitry for supervisory or signal processing purposes.
    Type: Grant
    Filed: April 15, 1999
    Date of Patent: December 26, 2000
    Assignee: Pittway Corporation
    Inventors: Jim Wiemeyer, Thomas William Shoaff, George Schoenfelder, Lee Tice
  • Aspirated detector
    Patent number: 5926098
    Abstract: An aspirated-type detector includes a housing with an internal ambient condition sensing region and a sensor carried therein. The housing is perforated with ambient atmosphere inflow ports. A fan or similar device lowers the pressure in the internal region thereby producing a positive inflow of adjacent, external ambient atmosphere into the sensing region. Alternatively, the fan can be operated to inject exterior ambient atmosphere into the sensing chamber under positive pressure. The fan can also be modularized. The detector can incorporate control circuitry for supervisory or signal processing purposes.
    Type: Grant
    Filed: October 24, 1996
    Date of Patent: July 20, 1999
    Assignee: Pittway Corporation
    Inventors: Jim Wiemeyer, Thomas William Shoaff, George Schoenfelder, Lee Tice