Patents by Inventor Carmel Z. El Hakam

Carmel Z. El Hakam 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).

  • Earth boring drill bits made from a low-carbon, high-molybdenum alloy
    Patent number: 7905301
    Abstract: An earth boring bit formed from an alloy comprising a low carbon content and high molybdenum content is disclosed herein. The molybdenum content is greater than about 0.8% to about 1.15% by weight of the alloy. The carbon content may range up to about 0.16% by weight of the alloy. The alloy may further comprise alloy further comprises manganese, phosphorus, sulfur, silicon, nickel, chromium, copper, aluminum, vanadium, and calcium; with the balance being iron. The alloy experiences a relatively flattened hardenability curve and low martinsite formation.
    Type: Grant
    Filed: July 2, 2008
    Date of Patent: March 15, 2011
    Assignee: Baker Hughes Incorporated
    Inventors: Carmel Z. El Hakam, Eric C. Sullivan, John F. Bradford, III, Don Q. Nguyen
  • Corrosion protection for head section of earth boring bit
    Patent number: 7823664
    Abstract: An earth boring bit has a steel body having at least one leg with a depending bearing pin. A cone having cutting elements is rotatably mounted to the bearing pin. A ball plug weld is on the outer surface of the leg. A layer of hardfacing applied to part of the outer surface of the leg, the hardfacing having carbide particles in a matrix. A corrosion resistant coating containing at least 50% nickel is formed on parts of the outer surface of the leg that are free of the layer of hardfacing both above and below the ball plug weld.
    Type: Grant
    Filed: August 14, 2008
    Date of Patent: November 2, 2010
    Assignee: Baker Hughes Incorporated
    Inventors: Alan J. Massey, David K. Luce, Eric Sullivan, John F. Bradford, III, Carmel Z. El Hakam, James L. Overstreet, Ajay V. Kulkarni
  • Corrosion Protection for Head Section of Earth Boring Bit
    Publication number: 20090044984
    Abstract: An earth boring bit has a steel body having at least one leg with a depending bearing pin. A cone having cutting elements is rotatably mounted to the bearing pin. A ball plug weld is on the outer surface of the leg. A layer of hardfacing applied to part of the outer surface of the leg, the hardfacing having carbide particles in a matrix. A corrosion resistant coating containing at least 50% nickel is formed on parts of the outer surface of the leg that are free of the layer of hardfacing both above and below the ball plug weld.
    Type: Application
    Filed: August 14, 2008
    Publication date: February 19, 2009
    Applicant: Baker Hughes Incorporated
    Inventors: Alan J. Massey, David K. Luce, Eric Sullivan, John F. Bradford, III, Carmel Z. El Hakam, James L. Overstreet, Ajay V. Kulkarni
  • Earth Boring Drill Bits Made From A Low-Carbon, High-Molybdenum Alloy
    Publication number: 20090008154
    Abstract: An earth boring bit formed from an alloy comprising a low carbon content and high molybdenum content is disclosed herein. The molybdenum content is greater than about 0.8% to about 1.15% by weight of the alloy. The carbon content may range up to about 0.16% by weight of the alloy. The alloy may further comprise alloy further comprises manganese, phosphorus, sulfur, silicon, nickel, chromium, copper, aluminum, vanadium, and calcium; with the balance being iron. The alloy experiences a relatively flattened hardenability curve and low martinsite formation.
    Type: Application
    Filed: July 2, 2008
    Publication date: January 8, 2009
    Applicant: Baker Hughes Incorporated
    Inventors: Carmel Z. El Hakam, Eric Sullivan, John F. Bradford, III, Don Q. Nguyen