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. 25, 1990
Filed:
Feb. 08, 1990
Applicant:
Inventors:
James M Barker, Katy, TX (US);
Martin L Tomek, Houston, TX (US);
Assignee:
Halliburton Logging Services, Inc., Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B / ;
U.S. Cl.
CPC ...
175-4 ; 175 58 ;
Abstract
An elongate gun assembly with multiple gun chambers is assembled with locking keys holdinhg several chambers in place. In each, a bullet with bottom is placed adjacent to an explosive charge. An elongate cable having two end loops connects with the assembly and passes through the bullet. The cable is anchored on the bullet, and the two ends are unequal in length. They enable retrieval after firing. A method of cable coiling and retrieval is set out.