Patents by Inventor Rudolf Wichtl

Rudolf Wichtl 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).

  • Fan assembly with a fan locking device for an automotive fluid friction fan clutch
    Patent number: 6200106
    Abstract: The present invention relates to a fan for an internal combustion engine. The fan has a locking device for a fluid friction clutch in the form of a pivoting hook that may be mounted subsequently at a fixed location using a holding device and may be triggered using an electromagnet. The electromagnet may be accommodated in the circuit of an ignition lock such that when the engine is started, the fan wheel is prevented from rotating unintentionally.
    Type: Grant
    Filed: December 30, 1997
    Date of Patent: March 13, 2001
    Assignees: Behr GmbH & Co., Magenta GmbH Systemlieferant Fuer Elektromagnetische Baugruppen, Bayerishce Motoren Werke Aktiengesellschaft
    Inventors: Hans Martin, Franz A. Bierbrauer, Rudolf Wichtl, Wolfgang Kuttler