Patents by Inventor John G. Thacker

John G. Thacker 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).

  • Electronic lock
    Patent number: 5636880
    Abstract: An electronic lock mechanism includes a solenoid driven actuator and a cam actuator ring. The cam ring interfaces with both the latch of a door lock and the door lock key cylinder. With this interfacing, the door latch can be independently operated by one of the key cylinder, the cam actuator ring or a door lock push bar or paddle. With this independent operation, the ability to open a door can be maintained during power or lock mechanism failures for purpose of egress from the area secured by the door lock.
    Type: Grant
    Filed: October 11, 1995
    Date of Patent: June 10, 1997
    Assignee: Milocon Corporation
    Inventors: Edward J. Miller, John G. Thacker