Patents by Inventor Anthony William Rowe

Anthony William Rowe 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).

  • Apparatus for detecting changes in the electrical characteristics of sensor devices
    Patent number: 3973257
    Abstract: The invention relates to electrical apparatus for detecting a change in the electrical characteristics of a sensor device, such as a device for sensing fire, the apparatus comprising a plurality of electrical circuits arranged in parallel and connected to an output circuit which can activate or initiate operation of a device which is required to be operated when the electrical characteristics of the sensor device change, each parallel circuit being provided with means for automatically indicating that the circuit is functioning correctly, any fault in the circuit being automatically indicated and the circuit preventing the output circuit from activating or initiating operation of said device due to a fault.
    Type: Grant
    Filed: January 23, 1975
    Date of Patent: August 3, 1976
    Assignee: Dreamland Electrical Appliances Limited
    Inventor: Anthony William Rowe