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. 22, 1991
Filed:
Apr. 16, 1990
Applicant:
Inventors:
Edgar D Lueders, Stafford, TX (US);
Brian A Roth, Houston, TX (US);
Assignee:
Camco International Inc., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B / ;
U.S. Cl.
CPC ...
166321 ; 166322 ; 166332 ; 251298 ; 251303 ;
Abstract
A one-piece flapper mount for a wireline retrievable hydraulic piston actuated wrap-around flapper safety valve. The flapper mount has opposing openings between the valve seat and the nose seal and the openings are sized for insertion of the flapper valve and nose seal with support ribs between the openings. The single piece construction allows setting and retrieving the safety valve in a single trip. The one-piece mount also has the advantage of ease of orientation of coacting parts.