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. 09, 2007
Filed:
Mar. 24, 2004
Applicants:
Wanchai Ratanasirigulchia, Shanghai, CN;
Wenbo Yang, Sugar Land, TX (US);
Cynthia L. Hickson, Sugar Land, TX (US);
Robert A. Parrott, Houston, TX (US);
Inventors:
Wanchai Ratanasirigulchia, Shanghai, CN;
Wenbo Yang, Sugar Land, TX (US);
Cynthia L. Hickson, Sugar Land, TX (US);
Robert A. Parrott, Houston, TX (US);
Assignee:
Schlumberger Technology Corporation, Sugar Land, TX (US);
Primary Examiner:
Int. Cl.
CPC ...
E21B 43/116 (2006.01);
U.S. Cl.
CPC ...
Abstract
The loading tube comprises cups forming cup cavities for enclosing an explosive charge within each of the cups. The loading tube has ridges and valleys providing longitudinal and lateral strength to the loading tube. The loading tube is constructed of a formed material such as paper pulp, high-density polystyrene, plastic or sheet metal.