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. 28, 1993
Filed:
Feb. 10, 1992
Applicant:
Inventor:
Paul B Ritter, Jr, Slidell, LA (US);
Assignee:
Shell Offshore Inc., Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16L / ;
U.S. Cl.
CPC ...
405169 ; 405191 ; 4052231 ;
Abstract
An emergency release tool for operation by a remotely operated vehicle (ROV) for forcefully releasing a riser from a subsea well assembly The tool includes hydraulic cylinders mounted on a frame that can be positioned by the remotely operated vehicle to surround the risers. The cylinders are pressurized to forcefully remove the riser from the wellhead assembly.