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.

Date of Patent:
Nov. 16, 2010

Filed:

Oct. 19, 2007
Applicants:

Barry D. Calnan, Conroe, TX (US);

Valerie R. C. M. J. Sillen, Brussels, BE;

Inventors:

Barry D. Calnan, Conroe, TX (US);

Valerie R. C. M. J. Sillen, Brussels, BE;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B22C 9/00 (2006.01); B22C 1/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

Three dimensional printing equipment and techniques may be used in combination with three dimensional design data associated with well drilling equipment and well completion equipment to form molds associated with manufacture of such equipment. For example, such molds may be used to form a bit body or other components associated with a rotary drill bit. For some applications composite or matrix materials may be placed in the mold to form a matrix bit body. Heat transfer characteristics of the mold may be optimized for heating and/or cooling of the matrix materials to provide optimum fracture resistant (toughness) and optimum erosion, abrasion and/or wear resistance for portions of the bit body. Such molds may also be used to form steel bit bodies associated with fixed cutter rotary drill bits and other components associated with a wide variety of well drilling equipment and well completion equipment.


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