Patents by Inventor Carl A. Deen

Carl A. Deen 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 cone drill bit having sharp cutting elements in a zone of interest
    Patent number: 8316968
    Abstract: A rolling cone drill bit comprises a bit body and a plurality of rolling cone cutters mounted on the bit body. Each cone cutter includes a plurality of gage cutting elements. Each gage cutting element has a cutting portion extending from a base portion to an extension height. Further, each gage cutting element contacts a gage curve at a gage curve contact point in a composite rotated profile view. Each gage cutting element has a cross-sectional area A1 in a first offset reference plane parallel to a base reference plane and offset from the base reference plane by an offset distance d1 equal to 10% of the extension height. The ratio of A1 to a cross-sectional area Ab of the base portion of each gage cutting element is less than 11%.
    Type: Grant
    Filed: April 30, 2010
    Date of Patent: November 27, 2012
    Assignee: Smith International, Inc.
    Inventors: Giampaolo Ferrari, Gary Portwood, Carl A. Deen
  • ROLLING CONE DRILL BIT HAVING SHARP CUTTING ELEMENTS IN A ZONE OF INTEREST
    Publication number: 20100276207
    Abstract: A rolling cone drill bit comprises a bit body and a plurality of rolling cone cutters mounted on the bit body. Each cone cutter includes a plurality of gage cutting elements. Each gage cutting element has a cutting portion extending from a base portion to an extension height. Further, each gage cutting element contacts a gage curve at a gage curve contact point in a composite rotated profile view. Each gage cutting element has a cross-sectional area A1 in a first offset reference plane parallel to a base reference plane and offset from the base reference plane by an offset distance d1 equal to 10% of the extension height. The ratio of A1 to a cross-sectional area Ab of the base portion of each gage cutting element is less than 11%.
    Type: Application
    Filed: April 30, 2010
    Publication date: November 4, 2010
    Applicant: SMITH INTERNATIONAL, INC.
    Inventors: Giampaolo Ferrari, Gary Portwood, Carl A. Deen