Patents by Inventor Terry Edgar Cassel

Terry Edgar Cassel 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).

  • Apparatus for removal of milling debris
    Patent number: 6276452
    Abstract: An apparatus and method for drawing small milling debris into a combination milling and debris retrieval tool, during the performance of the milling operation. A milling tool has a fluid intake port near its lower end, where debris-laden fluid is drawn into the milling tool and subsequently into a separator section. The separator section has a debris deflection tube and a screen for separating the debris from the fluid. Fluid is drawn into the tool by either a set of eductor nozzles or a downhole motor and pump.
    Type: Grant
    Filed: November 5, 1999
    Date of Patent: August 21, 2001
    Assignee: Baker Hughes Incorporated
    Inventors: John Phillip Davis, Terry Edgar Cassel