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. 08, 1983
Filed:
Feb. 02, 1981
Applicant:
Inventor:
Andre Garnier, Berlaimont, FR;
Assignee:
Vallourec SA, Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21D / ; B21D / ; B23P / ; F16L / ;
U.S. Cl.
CPC ...
2915 / ; 291574 ; 72123 ; 285222 ;
Abstract
A method for fixing a tube by expansion improve the seal between a tube and a support plate which are joined by expansion fixing. The method comprises forming fine annular projections on the surface of a bore which is formed in the support plates, and inserting a tube within the bore so that upon expanding the tube within the bore, the projections engage the tube to produce a seal.