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:
Nov. 21, 1989
Filed:
Sep. 01, 1988
Applicant:
Inventor:
William A Abreo, Jr, Houston, TX (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B / ;
U.S. Cl.
CPC ...
405169 ; 405224 ; 405188 ; 166338 ; 166341 ; 285 24 ; 285 84 ; 403348 ;
Abstract
A subsea landing base including a plurality of guide posts interconnected to a housing support structure including an upper annular plate, a lower annular plate, an annular control plate supported on the upper annular plate and rotatable thereon, a connection between the control plate to a landing ring to actuate the landing ring between housing supporting position and expanded position, rotation of the control plate to one of its positions of running, released and landed and locked, and a tool for rotation of the control plate and for retrieval of the landing base.