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:
Jan. 10, 1978
Filed:
Apr. 04, 1977
Applicant:
Inventors:
Edmund M Mouret, Houston, TX (US);
Michael R Garrett, Spring, TX (US);
Assignee:
FMC Corporation, San Jose, CA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
E21B / ;
U.S. Cl.
CPC ...
166208 ; 166212 ;
Abstract
A well tool for running and landing underwater casing hangers. The tool includes a resilient split ring with external threads that engage complementary internal threads on the hanger, and an hydraulic system that is actuated through a control line at the surface, thereby facilitating release of the hanger from the tool by either hydraulic pressure or rotation of the running string to which the tool is attached.