Patents by Inventor Gerd W. Seifert

Gerd W. Seifert 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).

  • Thermostat for coolant presented as switch specifically for combustion engines
    Patent number: 4103824
    Abstract: This invention relates to the thermostat for coolants to switch coolant flow from a first passage to either a second or third passage. The thermostat comprises a bimetallic spring disc which in one position directs the flow to the second passage and when heated to a predetermined temperature by the coolant switches the flow to the third passage. The thermostat is adjustably mounted.
    Type: Grant
    Filed: July 25, 1974
    Date of Patent: August 1, 1978
    Inventor: Gerd W. Seifert