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. 16, 1991
Filed:
Mar. 30, 1990
Applicant:
Inventors:
David E Cain, Houston, TX (US);
Ronald W Henley, Kingwood, TX (US);
Kevin P Long, Houston, TX (US);
Tep Ungchusri, Woodlands, TX (US);
John C Vicic, Santa Cruz, CA (US);
Assignee:
FMC Corporation, Chicago, IL (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
E21B / ; F16L / ;
U.S. Cl.
CPC ...
166 751 ; 166208 ; 285146 ; 285147 ; 285144 ;
Abstract
A well casing hanger with a wide temperature range seal element that is energized by axial compression with a pre-determined initial portion of the casing hang load, the remaining portion of that hang load then being transferred to the wellhead or other surrounding well element without imposition on the seal element.