Patents by Inventor Harold DePriest

Harold DePriest 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).

  • Quick-change brush head
    Patent number: 4205407
    Abstract: A brush head assembly (12) for use in a pipe cleaning machine includes a pair of end rings (26, 28). A plurality of arms (30) are pivotally connected about the second end ring (28). Cross members (44) supporting brushes (50) extend between the arms (30) and the first end ring (26). The brush head assembly (12) is adjustable to accommodate different predetermined pipe sizes by pivotal adjustment of the arms (30) and replacement of the first end ring (26).
    Type: Grant
    Filed: May 25, 1979
    Date of Patent: June 3, 1980
    Assignee: Crutcher Resources Corporation
    Inventors: Gary N. King, Harold DePriest