Patents by Inventor Gunther Heissler

Gunther Heissler 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).

  • Fluid pressure switch having a spring opposing the fluid pressure
    Patent number: 4724289
    Abstract: A pressure switch assembly includes an electric switch which is actuated in response to a preselected pressure in a pressure line. The assembly includes an activating rod which is engageable with the electric switch. The activating is acted upon by opposing forces from the pressure and a spring. The spring bears against a stop ring which is threadedly mounted so as to be displaceable in order to adjust the spring force. The stop ring is rotated by rotating a cover portion of the switch housing, the cover being connected to the stop ring. Thereafter, the cover is locked against rotation.
    Type: Grant
    Filed: January 21, 1987
    Date of Patent: February 9, 1988
    Assignee: Robert Scheuffele GmbH & Co. KG
    Inventor: Gunther Heissler