Patents by Inventor Lawrence R. McGourty

Lawrence R. McGourty 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).

  • Electrically controlled door lock
    Patent number: 4736970
    Abstract: A latch bar is connected to the plunger of a solenoid and is movable endwise to release an exterior knob spindle to enable the spindle to actuate a latch bolt retractor. A latch carried by the latch bar is held by the retractor to maintain the latch bar open until the retractor is later actuated by the spindle, thereby enabling a single electric pulse to effect release of the lock bar.
    Type: Grant
    Filed: March 9, 1987
    Date of Patent: April 12, 1988
    Inventors: Thomas K. McGourty, Lawrence R. McGourty