Patents by Inventor Rudolf E. Zimmermann

Rudolf E. Zimmermann 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).

  • Push-pull switch operator
    Patent number: 6268577
    Abstract: A push-pull switch operator includes a housing. A rotary drive is rotationally mounted in the housing and has a circumferential cam track. An actuator is operatively coupled to the rotary drive for converting linear movement of the actuator to rotary movement of the rotary drive. A pusher is received in the housing and has a follower pin riding in the cam track to convert rotary movement of the cylinder to linear movement of the pusher. The pusher actuates an electrical switch. A cap is operatively coupled to the actuator for manually operating the actuator between in, middle and out positions to selectively operate the pusher.
    Type: Grant
    Filed: December 16, 1999
    Date of Patent: July 31, 2001
    Assignee: Siemens Energy & Automation, Inc.
    Inventors: Terry L. Marquardt, Rudolf E. Zimmermann