The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 20, 2011
Filed:
Jun. 04, 2008
Redd H. Smith, The Woodlands, TX (US);
John H. Stevens, Spring, TX (US);
James L. Duggan, Friendswood, TX (US);
Nicholas J. Lyons, Houston, TX (US);
Jimmy W. Eason, The Woodlands, TX (US);
Oliver Matthews, Iii, Spring, TX (US);
Redd H. Smith, The Woodlands, TX (US);
John H. Stevens, Spring, TX (US);
James L. Duggan, Friendswood, TX (US);
Nicholas J. Lyons, Houston, TX (US);
Jimmy W. Eason, The Woodlands, TX (US);
Oliver Matthews, III, Spring, TX (US);
Baker Hughes Incorporated, Houston, TX (US);
Abstract
Geometric compensation techniques are used to improve the accuracy by which features may be located on drill bits formed using particle compaction and sintering processes. In some embodiments, a positional error to be exhibited by at least one feature in a less than fully sintered bit body upon fully sintering the bit body is predicted and the at least one feature is formed on the less than fully sintered bit body at a location at least partially determined by the predicted positional error. In other embodiments, bit bodies of earth-boring rotary drill bits are designed to include a design drilling profile and a less than fully sintered bit body is formed including a drilling profile having a shape differing from a shape of the design drilling profile. Less than fully sintered bit bodies of earth-boring rotary drill bits are formed using such methods.