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. 17, 1980
Filed:
May. 11, 1978
Applicant:
Inventors:
Takeshi Wada, Hitachi, JP;
Hisanao Kita, Hitachi, JP;
Tetsuo Okuni, Hitachi, JP;
Yoshio Namatame, deceased, late of Hitachi, JP;
Assignee:
Hitachi, Ltd., Toyko, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23K / ;
U.S. Cl.
CPC ...
219 731 ; 2191372 ; 21913744 ;
Abstract
A nozzle structure of electroslag welding machines for use in welding planks having heavier thicknesses compared to previously electroslag welded planks, and having as much as 800 mm thicknesses, in which the nozzle structure is formed of a plurality of bent pipes rigidly connected with each other to form a fan-shaped nozzle structure. A plurality of wires are continuously fed through each of the bent pipes into a weld gap formed by faces of planks to be welded.