Patents by Inventor Fred C. Heinzman

Fred C. Heinzman 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).

  • Mechanical rotating combination lock opening device
    Patent number: 5017851
    Abstract: A computer controlled electric motor with a driving shaft having a resilient cup type safe knob gripper fixedly attached to the distal end thereof for rotation therewith. A key pad for programing the computer memory with a plurality of different rotational sequences. Each sequence is associated with a combination of a different combination lock. Any of the lock opening rotational sequences stored in the computer memory can be addressed by the key pad. A storage battery provides operating and stand by power for the computer, memory and motor.
    Type: Grant
    Filed: September 6, 1988
    Date of Patent: May 21, 1991
    Inventor: Fred C. Heinzman