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:
Feb. 13, 1996
Filed:
May. 12, 1994
Gerard Boula, Meursault, FR;
Yves Faunier, Chatenay Le Royal, FR;
Framatome, Courbevoie, FR;
Abstract
The joint region (43) of the parts (27, 29) is surrounded by an enclosure (38) which is mounted in a fluidtight manner around a part of the outer surface of the component (31). The enclosure (38) carries an electron gun (39). A low pressure is created in a chamber (44) defined by the fluidtight enclosure (38) and by the outer surface of the component (31). A relative displacement is produced between the parts (27, 29) and the electron gun (39) to cause an electron beam emitted by the electron gun (39) to scan the joint region (43) during the welding. The process may be used in particular in the field of the manufacture of steam generators of pressurized water nuclear reactors.