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:
Oct. 12, 2010
Filed:
Feb. 23, 2007
Eric E. Mcclain, Spring, TX (US);
Dan E. Scott, Montgomery, TX (US);
Wesley Dean Fuller, Willis, TX (US);
Robert M. Welch, The Woodlands, TX (US);
Jimmy W. Eason, The Woodlands, TX (US);
Marcus R. Skeem, Sandy, UT (US);
Van J. Brackin, Spring, TX (US);
Eric E. McClain, Spring, TX (US);
Dan E. Scott, Montgomery, TX (US);
Wesley Dean Fuller, Willis, TX (US);
Robert M. Welch, The Woodlands, TX (US);
Jimmy W. Eason, The Woodlands, TX (US);
Marcus R. Skeem, Sandy, UT (US);
Van J. Brackin, Spring, TX (US);
Baker Hughes Incorporated, Houston, TX (US);
Abstract
A method of constructing an earth-boring, diamond-impregnated drill bit has a first step of coating diamond grit with tungsten to create tungsten-coated diamond particles. These coated particles are then encapsulated in a layer of carbide powder held by an organic green binder material. The encapsulated granules are then mixed along with a matrix material and placed in a mold. The matrix material includes a matrix binder and abrasive particles. The mixture is heated in the mold at atmospheric pressure to cause the matrix binder to melt and infiltrate the encapsulated granules and abrasive particles.