Patents by Inventor Henry P. Rebollido, Jr.

Henry P. Rebollido, Jr. 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).

  • Reduced erosion nozzle system and method for the use of drill bits to reduce erosion
    Patent number: 6142248
    Abstract: Subterranean drill bits and particularly to nozzle features to be incorporated in subterranean bits. In one embodiment, the nozzle assembly of the invention defines a wear resistant structure which extends upstream from the terminus of the transition area. In another embodiment, nozzle assemblies are arranged about the transition area at low angles so as to minimize flow turbulence.
    Type: Grant
    Filed: April 2, 1998
    Date of Patent: November 7, 2000
    Assignee: Diamond Products International, Inc.
    Inventors: Gary Michael Thigpen, Henry P. Rebollido, Jr., Coy M. Fielder, Brad Weston