Patents by Inventor Mark Michael Berklich

Mark Michael Berklich 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).

  • Rotary link deadbolt locking actuator and method
    Patent number: 6213524
    Abstract: A deadbolt locking actuator includes a housing mounting a reversible motor. A worm is fitted on an output shaft of the motor and meshed with a worm gear. A rotary arm is provided outside of the housing and coupled to the worm gear. A pin on the rotary arm is received in an elongated slot of a link connected to a manual locking lever of a door latch. A control circuit operates the drive unit and link between deadbolt and non-deadbolt positions.
    Type: Grant
    Filed: June 14, 1993
    Date of Patent: April 10, 2001
    Assignee: General Motors Corporation
    Inventors: Gary David Bree, Mark Michael Berklich, Lloyd Walker Rogers, Jr.