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. 07, 2008
Filed:
Jan. 22, 2003
Bunker Hill, Sugar Land, TX (US);
Gary W. Contreras, Valencia, CA (US);
Edward Harrigan, Richmond, TX (US);
Robert Wayne Sundquist, The Woodlands, TX (US);
Lennox E. Reid, Houston, TX (US);
Dean W. Lauppe, Pasadena, TX (US);
Sony Tran, Missouri City, TX (US);
Bunker Hill, Sugar Land, TX (US);
Gary W. Contreras, Valencia, CA (US);
Edward Harrigan, Richmond, TX (US);
Robert Wayne Sundquist, The Woodlands, TX (US);
Lennox E. Reid, Houston, TX (US);
Dean W. Lauppe, Pasadena, TX (US);
Sony Tran, Missouri City, TX (US);
Schlumberger Technology Corporation, Sugar Land, TX (US);
Abstract
A coring bit, including an outer hollow coring shaft, and a rotationally uncoupled internal sleeve disposed inside the outer hollow coring shaft. The rotationally uncoupled internal sleeve may be a non-rotating internal sleeve. The rotationally uncoupled internal sleeve may be a free-floating internal sleeve.