Patents by Inventor Philip H. Bertenshaw

Philip H. Bertenshaw 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: 5718135
    Abstract: An electrically operated door lock has a pair of pivotally mounted jaws (12, 13) which can be moved towards and away from each other to capture and release the end of a bolt or style (11). The bolt or style moves in a direction perpendicular to the direction of movement of the jaws. The jaws are locked in the captive position by a cam (39) which is controlled by a low power electric motor (81). The motor has three positions corresponding to release, locking and deadlocking of the jaws, the jaws being releasable by a handle (49) in the locked position but not when deadlocked. An electronic control system is used to control the motor, and the lock can be released using an electronic coded proximity key.
    Type: Grant
    Filed: November 29, 1995
    Date of Patent: February 17, 1998
    Assignee: Reynolds (UK) Limited
    Inventors: Philip H. Bertenshaw, Andrew M. Taylor