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:
Jul. 14, 1981
Filed:
Aug. 30, 1979
Applicant:
Inventors:
Joe G Chambless, Shreveport, LA (US);
Paul E McGlasson, Shreveport, LA (US);
Assignee:
W-K-M Wellhead Systems, Inc., Shreveport, LA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F16L / ;
U.S. Cl.
CPC ...
285143 ; 166 85 ; 166240 ; 285361 ;
Abstract
A tubing string (86) is connected at its upper end to a hanger (42) and has its lower end anchored within an outer casing. The hanger and tubing string are lifted from a position below the wellhead assembly to tension the tubing string a desired amount. The hanger has a plurality of guide pins (90) extending from and spaced about the outer periphery of the hanger. Upon lifting of the hanger and suspended tubing string, the guide pins enter inverted J-slots (62) in the hanger bowl (30) which receive and guide the pins to a seated position on the bowl.