Patents by Inventor Richard L. Bergmann

Richard L. Bergmann 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).

  • Adjustable condition responsive control
    Patent number: 4144515
    Abstract: A condition responsive control is disclosed which includes a support housing, a snap switch supported by the housing having first and second control conditions for governing operation of a condition altering device, a condition responsive actuator system supported by the housing remote from the switch and a lever system coacting between the switch and the actuator for enabling operation of the switch between its conditions.The actuator coacts with the lever system via a lost motion mechanism which enables the establishment of a differential between the sensed condition levels at which the switch is operated. The lost motion mechanism is adjustable to alter the sensed condition levels at which the switch is operated throughout a relatively wide range and is also adjustable to permit the extent of the differential to be changed.
    Type: Grant
    Filed: February 9, 1977
    Date of Patent: March 13, 1979
    Assignee: Ranco Incorporated
    Inventor: Richard L. Bergmann