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:
May. 09, 1989
Filed:
May. 09, 1988
Applicant:
Inventors:
Hiram E Lindsey, Midland, TX (US);
Roger P Allwin, College Station, TX (US);
Richard W Adams, Bryan, TX (US);
Assignee:
Lindsey Completion Systems, Inc., Midland, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B / ; E21B / ;
U.S. Cl.
CPC ...
166382 ; 166212 ; 166238 ; 166239 ; 166317 ; 166328 ; 166386 ;
Abstract
In a hydraulically operated setting tool for liner hangers used in a well bore, a norally countracted ball seat formed in the setting tool mandrel by contracted and elongated finger members. Upon seating a ball member in the ball seat, applied pressure is used to set the hydraulic setting tool. After setting the hydraulic setting tool, the ball seat is longitudinally movable so that the finger members can expand to a full opening condition in a recess and release the ball member and so that the finger members are also retrievable with the setting tool.