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:
May. 08, 1979
Filed:
Jul. 01, 1977
Applicant:
Inventor:
Robert R Luke, Houston, TX (US);
Assignee:
Cameron Iron Works, Inc., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B / ;
U.S. Cl.
CPC ...
166355 ; 166 66 ; 285 93 ; 285265 ;
Abstract
There is disclosed a flex joint for connecting the upper end of wellhead equipment including a blowout preventer stack with the lower end of a riser pipe which includes means for use in sensing and producing a signal representing the angle between and relative direction of the longitudinal axes of the stack and pipe.