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:
Jul. 14, 1992
Filed:
Mar. 06, 1991
Applicant:
Inventor:
Yves Fournier, Chatenoy le Royal, FR;
Assignee:
Framatome, Courbevoie, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21D / ;
U.S. Cl.
CPC ...
72 70 ; 72117 ; 72123 ;
Abstract
After machining, the floor of a countersink is chased by means of rollers driven to execute an orbital motion, the angle which the attack surface of the rollers forms with the axis of the opening being progressively reduced as a function of the advance of the roller carrier. Application to the forming of connecting lips around the openings of a nuclear reactor vessel barrel.