Patents by Inventor Clarence E. Patrick

Clarence E. Patrick 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: 9428940
    Abstract: A door latch for retaining a door to a door frame or floor at a plurality of locations adjacent a respective edge of the door includes a central latch disposed within the door and biased in an extended position, and at least one of an upper latch disposed within the door and biased in an extended position and a lower latch disposed within the door and biased in an extended position. The door latch further includes a lock set that is operable for simultaneously moving the central latch and the at least one of the upper latch and the lower latch from the extended position to a retracted position so as to release the door from the door frame. The door latch includes a rotatable central shaft operably coupled with a cam, and a connecting arm operably coupled with the cam and attached to an actuator rod. The actuator rod is connected to an inner sleeve moveably disposed within an outer housing of the upper latch or the lower latch.
    Type: Grant
    Filed: June 5, 2015
    Date of Patent: August 30, 2016
    Inventor: Clarence E. Patrick