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:
Jan. 25, 2005
Filed:
Aug. 03, 2001
Applicant:
James E. Boyce, Cedar Hill, TX (US);
Inventor:
James E. Boyce, Cedar Hill, TX (US);
Assignee:
Halliburton Energy Svcs Inc., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 1036 ;
U.S. Cl.
CPC ...
Abstract
A thin layer of carbide containing an ultra-hard component, such as diamond, is applied to a formed compact for a drilling tool. The compact is then subjected to a high-temperature, high-pressure process to bond it to the added layer. This process allows the use of an underlying substrate which has a lower binder content than previously possible. The compact provides superior cutting ability, as even if the diamond-enhanced layer wears through, the carbide can provide enhanced hardness.