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. 11, 2011
Filed:
Jun. 09, 2008
Applicants:
David R. Hall, Provo, UT (US);
Scott Dahlgren, Alpine, UT (US);
Jonathan Marshall, Provo, UT (US);
Italo Elqueta, Lehi, UT (US);
Tyson J. Wilde, Spanish Fork, UT (US);
Christopher Durrand, Pleasant Grove, UT (US);
Inventors:
David R. Hall, Provo, UT (US);
Scott Dahlgren, Alpine, UT (US);
Jonathan Marshall, Provo, UT (US);
Italo Elqueta, Lehi, UT (US);
Tyson J. Wilde, Spanish Fork, UT (US);
Christopher Durrand, Pleasant Grove, UT (US);
Assignee:
Schlumberger Technology Corporation, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21C 35/197 (2006.01);
U.S. Cl.
CPC ...
Abstract
A retention assembly has a carbide bolster with a first and second segment brazed together, each segment forming at least part of a cavity formed of the bolster. A shaft has an inserted end is interlocked within the cavity.