Patents by Inventor William J. Wilkie

William J. Wilkie 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).

  • Rotary distribution pipe assembly
    Patent number: 5582742
    Abstract: For a filtering-type centrifuge, a pipe assembly composed of a stationary outer pipe with a concentric rotatable inner pipe. The outer pipe has a longitudinally extending distribution port, while the inner pipe has a helically shaped discharge port. The assembly is placed inside the centrifuge and inside of a filtering basket. As the inner pipe turns, portions of the distribution port are intersected by portions of the discharge port. This causes the slurry to exit the inner pipe at the intersection positions and be distributed in an even fashion on the basket.
    Type: Grant
    Filed: September 5, 1995
    Date of Patent: December 10, 1996
    Assignee: Ketema, Inc.
    Inventors: William J. Wilkie, Paul B. Blackburn