Patents by Inventor William L. Wanke

William L. Wanke 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).

  • Pressure fed liquid dispenser
    Patent number: 4004717
    Abstract: A liquid dispenser having one piston and cylinder for feeding the liquid and a larger piston and cylinder cooperating with a valve to provide aspirator action to eliminate dripping and break stringing.
    Type: Grant
    Filed: November 28, 1975
    Date of Patent: January 25, 1977
    Assignee: General Motors Corporation
    Inventor: William L. Wanke