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:
Nov. 15, 1988
Filed:
Oct. 05, 1987
Applicant:
Inventor:
Glenn B Christopher, Fort Worth, TX (US);
Assignee:
Halliburton Company, Duncan, OK (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B / ;
U.S. Cl.
CPC ...
102306 ; 89-115 ; 102476 ; 102481 ;
Abstract
A method and means for sealed joinder of case and cap members of a capsular shaped charge wherein mating grooves are formed in adjacent walls of a case and cap and a resilient O-ring is compressively retained therein to hold the case and cap in operative assembly to seal from external pressures and fluids while allowing relative rotation of case and cap; wherein increasing external pressures, as in the well bore, will increase the sealing effect and strength of joinder of the assembly.