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. 02, 2003
Filed:
Aug. 31, 2001
Applicant:
Inventors:
John M. Yokley, Kingwood, TX (US);
Larry E. Reimert, Houston, TX (US);
Assignee:
Dril-Quip, Inc., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 4/310 ;
U.S. Cl.
CPC ...
E21B 4/310 ;
Abstract
There is disclosed a system in which a liner is lowered into and landed within an outer casing. The casing includes a casing joint having upwardly facing landing shoulders formed about its bore, and the liner has a recess thereabout which receives a “C” shaped hanger carried in a retracted position as it is lowered into the bore. The hanger has teeth about it which are arranged to seat upon the landing shoulders when the hanger is released to expand against the bore so that its teeth may be lowered onto the landing surface.