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:
Jun. 23, 1998
Filed:
Aug. 08, 1997
Applicant:
Inventors:
Thierry Noel, Sebourg, FR;
Takuya Tsujimura, Amagasaki, JP;
Assignees:
Vallourec Oil & Gas, Aulnoye-Aymeries, FR;
Sumitomo Metal Industries, Osaka, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16L / ;
U.S. Cl.
CPC ...
285332 ; 285334 ; 285383 ; 285390 ;
Abstract
The joint according to the invention relates to a sealed connection between metal pipes used for producing petroleum tubings or casings. This joint comprises a sleeve fitted with two threaded housings suitable for receiving the male ends of two pipes. The end faces thereof come to bear one against the other inside the sleeve. An annular convex tapering zone near the end face of each pipe bears in a sealing manner against an annular concave tapering zone of the sleeve. Shoulder stops 16 ensure the centering of each male end.