Patents by Inventor Leitermann Wulf

Leitermann Wulf 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).

  • Internal combustion engine
    Patent number: 4095575
    Abstract: An internal combustion engine is provided with a liquid circuit in which, until a predetermined temperature is reached, a thermostat causes the liquid to pass through a heat exchanger acted on by hot exhaust gases. Such devices can be used both for warming up the liquid in the coolant circuit of an engine in order to obtain rapid warming-up of the engine, and also for heating a liquid provided for heating the engine induction system.
    Type: Grant
    Filed: June 30, 1976
    Date of Patent: June 20, 1978
    Assignee: Audi NSU Auto Union Aktiengesellschaft
    Inventor: Leitermann Wulf