Patents by Inventor John R. C. Curthoys

John R. C. Curthoys 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).

  • Flow meter
    Patent number: 4958524
    Abstract: A flow meter comprising a metallic conduit (1) through which, in use, fluid flow takes place, and ultrasonic transducer (4) mounted in a wall of the conduit (1) and operable to sense the presence of fluid in the conduit, the transducer being mounted in the conduit wall in metallic mounting (6) which are sealed in said wall by welding (9).
    Type: Grant
    Filed: May 5, 1989
    Date of Patent: September 25, 1990
    Inventors: Timothy Bonner, John R. C. Curthoys