Patents by Inventor Dieter Hacker

Dieter Hacker 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).

  • Thermal change-over switch
    Patent number: 4008453
    Abstract: A thermal change-over switch has a switch arm movable between first and second contact positions with an intervening dead center position, a temperature responsive bimetal element is connected to the switch arm through a prestressed resilient element so as to effect quick switch-over of the arm from either position to the other while maintaining contact pressure up to the time of switch-over.
    Type: Grant
    Filed: March 25, 1975
    Date of Patent: February 15, 1977
    Assignee: Grossag Gesellschaft Mit Beschrankter Haftung
    Inventors: Dieter Hacker, Rolf Jager, Dieter Lettau