Patents by Inventor Caleb Rickabaugh

Caleb Rickabaugh 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).

  • Tungsten Carbide Bit with Hardfaced Nose Area
    Publication number: 20110168452
    Abstract: An earth-boring bit has rotatable cones with rows of carbide elements installed thereon. A nose is symmetrically arranged on a cone axis of one of the cones. The nose has a central core that protrudes outward. A base joins supporting metal of the cone. A free end is opposite the base. Teeth are formed on the cone between the base and the free end, the teeth extending radially outward. A hard facing layer is located on the teeth. Intermediate hardfacings extend outward from the core between each of the teeth. The intermediate hardfacings may be lugs and preferably extend the same distance from the core as the teeth.
    Type: Application
    Filed: February 18, 2011
    Publication date: July 14, 2011
    Applicant: Baker Hughes Incorporated
    Inventors: Robert J. Pharis, James L. Overstreet, Clark R. Turner, Floyd C. Felderhoff, Kenneth E. Gilmore, Caleb A. Rickabaugh
  • Bit leg outer surface hardfacing on earth-boring bit
    Patent number: 7484577
    Abstract: An earth-boring bit has bit legs having hardfacing covering the majority of the outer surface. The hardfacing may have gaps at an area surrounding the ball plug and an area around a fixture dimple. The hardfacing may be multi-layer, with the layers differing in composition. Recesses may be located at the leading and trailing edges of the supporting metal so as to provide a thicker area of hardfacing at these corners. The supporting metal of the outer surface of the bit leg may also have an upper cylindrical section and a lower tapered section. The hardfacing has a constant outer diameter but will taper in thickness in the lower tapered section. The thickness of the hardfacing may also vary in a circumferential direction with a greater thickness over at least one of the corners.
    Type: Grant
    Filed: February 22, 2007
    Date of Patent: February 3, 2009
    Assignee: Baker Hughes Incorporated
    Inventors: James L. Overstreet, Robert J. Buske, John F. Bradford, III, Caleb A. Rickabaugh
  • Bit leg outer surface hardfacing on earth-boring bit
    Publication number: 20070163812
    Abstract: An earth-boring bit has bit legs having hardfacing covering the majority of the outer surface. The hardfacing may have gaps at an area surrounding the ball plug and an area around a fixture dimple. The hardfacing may be multi-layer, with the layers differing in composition. Recesses may be located at the leading and trailing edges of the supporting metal so as to provide a thicker area of hardfacing at these corners. The supporting metal of the outer surface of the bit leg may also have an upper cylindrical section and a lower tapered section. The hardfacing has a constant outer diameter but will taper in thickness in the lower tapered section. The thickness of the hardfacing may also vary in a circumferential direction with a greater thickness over at least one of the corners.
    Type: Application
    Filed: February 22, 2007
    Publication date: July 19, 2007
    Inventors: James Overstreet, Robert Buske, John Bradford, Caleb Rickabaugh