Patents by Inventor Amy J.G. Jurewicz

Amy J.G. Jurewicz 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).

  • Rolling-cutter earth-boring bit having predominantly super-hard cutting elements
    Patent number: 5855247
    Abstract: An earth-boring bit has a bit body. At least one cantilevered bearing shaft depends inwardly and downwardly from the bit body and a cutter is mounted for rotation on the bearing shaft. The cutter includes a plurality of cutting elements, at least one of which has a generally cylindrical element body of hard metal. A pair of flanks extend from the body and converge to define a crest. The crest defines at least one sharp cutting edge at its intersection with one of the flanks.
    Type: Grant
    Filed: February 14, 1997
    Date of Patent: January 5, 1999
    Assignee: Baker Hughes Incorporated
    Inventors: Danny E. Scott, Amy J.G. Jurewicz, Stephen R. Jurewicz