Patents by Inventor Werner Wilkendorf

Werner Wilkendorf 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).

  • Switchover device
    Patent number: 5073260
    Abstract: A twin filter comprises two filter housings 11 and 12 which are selectively supplied by a switchover device having a housing 13 with a liquid to be filtered. A closure slide 42 is movable in the housing 13 into two closed positions in which it blocks the supply of the liquid to one of the two filter housings. The closure slide 42 is released from its closed position for displacement into the respective other closed position by a releasing device in the form of a lifting device 48.
    Type: Grant
    Filed: April 11, 1990
    Date of Patent: December 17, 1991
    Assignee: HYDAC Filtertechnik GmbH
    Inventor: Werner Wilkendorf