Patents by Inventor David F. Davies

David F. Davies 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).

  • Gas sensor with smart pellistor
    Patent number: 8146403
    Abstract: A gas sensor includes a gas responsive pellistor and associated information specific to that pellistor. The information can include environmental compensation information, such as temperature or humidity compensation information or other manufacturing information, and is stored in a computer readable medium. Such information can be used by local circuitry in compensating the sensor while making ambient gas level determinations.
    Type: Grant
    Filed: September 11, 2008
    Date of Patent: April 3, 2012
    Assignee: Life Safety Distribution AG
    Inventors: Anthony R. Cowburn, David F. Davies, Jonathan H. Gilby
  • GAS SENSOR WITH SMART PELLISTOR
    Publication number: 20090223278
    Abstract: A gas sensor includes a gas responsive pellistor and associated information specific to that pellistor. The information can include environmental compensation information, such as temperature or humidity compensation information or other manufacturing information, and is stored in a computer readable medium. Such information can be used by local circuitry in compensating the sensor while making ambient gas level determinations.
    Type: Application
    Filed: September 11, 2008
    Publication date: September 10, 2009
    Inventors: Anthony R. Cowburn, David F. Davies, Jonathan H. Gilby
  • Gas sensor
    Patent number: 5601693
    Abstract: A device for sensing a gas comprises a pair of gas sensitive elements (25,26) surface mounted via conductors to a track carrying substrate (23).
    Type: Grant
    Filed: January 20, 1995
    Date of Patent: February 11, 1997
    Assignee: City Technology Limited
    Inventor: David F. Davies