Patents by Inventor David Rendall

David Rendall 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).

  • Patent number: 4320667
    Abstract: A load transducer includes a hollow body and a movable control element mounted in the body and extending through the body to an external surface of the body so that an external mechanical load can be applied to the control element to move the control element in one direction. Resilient means separate from the control element urges the control element in the opposite direction such that, in use, the control element is displaced by an amount dependent on the magnitude of the applied load. Coupled to the control element is a variable capacitor including a first electrode supported by a first carrier member in which the first carrier member is mounted so that the carrier members are capable of relative sliding movement in a direction perpendicular to a pair of parallel mutually presented surfaces of the electrodes.
    Type: Grant
    Filed: October 5, 1979
    Date of Patent: March 23, 1982
    Assignee: Lucas Industries Limited
    Inventors: John S. Forrester, David Rendall
  • Patent number: D502126
    Type: Grant
    Filed: December 6, 2002
    Date of Patent: February 22, 2005
    Assignee: Brumby Corporation
    Inventors: Stephen Everitt, Benjamin Wood, Stephen Thompson, Gavin Palmer, Clive Kilford, Nicholas Carpenter, David Minty, Glen Rees, David Rendall