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. 21, 1994
Filed:
Oct. 05, 1992
Applicant:
Inventor:
Gerard Boula, Corpeau, FR;
Assignee:
Framatome, Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23P / ;
U.S. Cl.
CPC ...
29890043 ; 29407 ; 29890053 ; 72367 ;
Abstract
To permit individual identification of each of the tubes (10) of a steam generator, the tubes are marked with the aid of a binary bar code (12a) formed from circular impressions (24) and the absence of impressions. The impressions, formed without material removal, make it possible to read the bar code with the aid of an eddy current probe. The impressions (24) can be made on the exterior of the tubes (10) during their manufacture, or on the interior of the tubes after they have been fixed to the tube plate (16).