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. 25, 1999
Filed:
Dec. 23, 1996
Applicant:
Inventor:
Thierry Noel, Sebourg, FR;
Assignee:
Vallourec Oil & Gas, Aulnoye-Aymeries, FR;
Primary Examiner:
Int. Cl.
CPC ...
F16L / ;
U.S. Cl.
CPC ...
285 55 ; 285333 ;
Abstract
The invention concerns threaded joints for tubes, having a layer intended in particular to protect the tubes and the joints from corrosion or to improve the conditions for a flow of fluids. The joint comprises two tubular threaded components each provided with a radial annular surface. The internal wall of the components and the annular surfaces are covered with a layer. The shape of the annular surfaces is such that in the screwed state those surfaces are partially in abutment contact at their external portion, their internal portion creating a progressive opening zone which is at least partially filled by the layers of the two components.