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:
May. 01, 2012
Filed:
Jun. 23, 2009
Applicant:
Wenbo Yang, Sugar Land, TX (US);
Inventor:
Wenbo Yang, Sugar Land, TX (US);
Assignee:
Schlumberger Technology Corporation, Sugar Land, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F42B 1/028 (2006.01);
U.S. Cl.
CPC ...
Abstract
A shaped charge has a case defining a volume therein. A liner is located in the volume. An explosive is located between the case and the liner. The liner defines an interior volume and an opening thereto. The liner also has an apex portion that is distal from the opening. The liner has a first thick portion and a second thick portion. A thin portion is located between the first thick portion and the second thick portion in a direction extending from the apex portion along the liner toward the opening. The thin portion is thinner than the first thick portion and thinner than the second thick portion.