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:
Jun. 23, 2009
Filed:
Nov. 26, 2002
Applicants:
James E Brooks, Manvel, TX (US);
Nolan C. Lerche, Stafford, TX (US);
Frank A. Duva, Carlsbad, CA (US);
Inventors:
James E Brooks, Manvel, TX (US);
Nolan C. Lerche, Stafford, TX (US);
Frank A. Duva, Carlsbad, CA (US);
Assignee:
Schlumberger Technology Corporation, Sugar Land, TX (US);
Primary Examiner:
Int. Cl.
CPC ...
F42B 3/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
A detonator assembly according to one arrangement includes a capacitor discharge unit having a capacitor and a resistor formed on a surface of the capacitor. At least one side of the resistor is electrically connected to one electrode of the capacitor. In another arrangement, another type of energy source besides the capacitor is used.