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:
Jul. 14, 1992
Filed:
May. 14, 1990
Applicant:
Inventors:
Glenn B Christopher, Ft. Worth, TX (US);
Mike Navarette, Ft. Worth, TX (US);
Assignee:
Jet Research Center, Inc., Alvarado, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F42B / ;
U.S. Cl.
CPC ...
1022023 ;
Abstract
A tubing cutter apparatus includes a housing or casing member formed of a zirconia ceramic material. The zirconia ceramic material is located at least proximate an explosive charge section, such the detonation of the explosive charge will cause shattering the ceramic section. The tubing cutter may be assembled in a safe manner by establishing ground connections between separate portions of the apparatus. These ground connections established during assembly will prevent the buildup of static electrical charges, which could cause premature detonation of the cutter.