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. 15, 1983
Filed:
Jan. 05, 1982
Applicant:
Inventor:
Fleming A Waters, Odessa, TX (US);
Assignee:
Otis Engineering Corporation, Dallas, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B / ;
U.S. Cl.
CPC ...
166113 ; 166332 ; 166334 ;
Abstract
A test system for wells which may be utilized in any well having a landing nipple therein. A pressure recording instrument is run in on a locking mandrel and a closing tool is provided which cooperates with a valve and moves it from open to closed position. With the closing prong engaged with the valve member and the valve in open position a small diameter extension on the prong is positioned opposite the ports in the valve to provide a large flow area.