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:
Apr. 09, 1996
Filed:
Feb. 27, 1995
Applicant:
Inventors:
Assignee:
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Primary Examiner:
Int. Cl.
CPC ...
B23K / ;
U.S. Cl.
CPC ...
2191 / ; 219 75 ; 2191251 ;
Abstract
Method and apparatus for splicing together the ends of metal webs by TIG welding. In the method and apparatus, since the tapered end portion of an electrode disposed at the leading end of a welding torch for use in TIG welding is formed in a semi-spherical shape or in a circular flat surface, arc can remain stable even if the length of the arc in the TIG welding is changed suddenly at the welding starting or terminating end portion of the weldedly spliced portion of the metal webs.