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:
Dec. 10, 2013
Filed:
Apr. 25, 2011
Applicant:
Christian C. Spring, Houston, TX (US);
Inventor:
Christian C. Spring, Houston, TX (US);
Assignee:
Schlumberger Technology Corporation, Sugar Land, TX (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F42B 3/182 (2006.01); F42B 3/188 (2006.01);
U.S. Cl.
CPC ...
Abstract
An radio frequency (RF) safe, high standoff voltage, ESD protected primary explosive detonator is described. The primary explosive detonator includes an isolated spark gap (SG) circuit and one or more shunt capacitors to insulate the electric match from ignition when exposure to high stray voltage or RF occurs in oilfield applications.