Patents by Inventor Fritz Widemann

Fritz Widemann 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).

  • Patent number: 6364212
    Abstract: The invention relates to a heating device, especially for a motor vehicle, with a burner, to which fuel is supplied from a tank via a fuel line by means of a pump, especially a piston pump, and with an electronically controllable valve means which is inserted into the fuel line and which can be controlled by a control means. To ensure problem-free feed of fuel to the burner independently of the pump pressure, a pressure reservoir is assigned to the valve means, fuel being delivered by means of the pump controlled in a clocked manner by the control unit, to the pressure reservoir and from the latter to the burner, without the action of the pump.
    Type: Grant
    Filed: November 26, 1999
    Date of Patent: April 2, 2002
    Assignee: Webasto Thermosysteme GmbH
    Inventor: Fritz Widemann