Patents by Inventor David O. Shipman

David O. Shipman 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).

  • Patent number: 4832066
    Abstract: A device for performing controlled cleaning of paint rollers of a hollow tubular form, comprising a housing (6, 7) for containing fluid transport tubing and spray heads (3, 4) spray heads (4) for expelling high pressure spray, which is directed at the sides of said paint roller thereof producing a spinning action. Fluid transport tubing (3) is in fluid communication through the wall of lower housing (6) with gate valve and female coupling housing (2, 1) supplying fluid to spray heads (4). A funnel (5) functions for collection and downward channeling waste fluid, and is mounted circumferentially inside and just below the top rim of lower housing (6) with the spout portion pointing downward, allowing for convenient single stream drainage of waste fluid.
    Type: Grant
    Filed: March 5, 1987
    Date of Patent: May 23, 1989
    Inventor: David O. Shipman