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:
Feb. 21, 1978
Filed:
Nov. 15, 1976
Applicant:
Inventors:
William H Parker, Hurst, TX (US);
Lawrence Hart, College Station, TX (US);
Assignee:
Del Norte Technology, Inc., Euless, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B / ; E21B / ;
U.S. Cl.
CPC ...
166315 ; 166 63 ; 1661175 ;
Abstract
A wireline running tool enables a module to be lowered into or removed from a production tubing or pipe line, especially one extending downhole in an oil or gas well. A kickover arm in the tool deflects the module into a side pocket in the tubing or pipe. The power for so deflecting such module comes from a pressurized pneumatic cylinder. If something goes wrong and the tool or module becomes stuck in the tubing or pipe, the gas slowly leaks from the pneumatic cylinder, after which the tool or module becomes unstuck.