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).

  • 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