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:
May. 14, 1985
Filed:
Sep. 26, 1983
Yuji Sugitani, Tsu, JP;
Yukio Kobayashi, Tsu, JP;
Nippon Kokan Kabushiki Kaisha, Tokyo, JP;
Abstract
A rotary arc-welding apparatus which comprises: a rotatable nozzle having in its interior thereof a passage for directing a consumable welding electrode eccentrically from the center axis of the nozzle toward a groove formed between objects of welding; a consumable welding electrode feeding mechanism for continuously directing the consumable welding electrode toward the groove through the nozzle; a welding current feeding mechanism for feeding a welding current to the nozzle, which comprises a current receiving plate fixed to the top end of the nozzle, a brush having on the upper surface thereof a current feeding plate, the brush and the current receiving plate having a flat contact interface therebetween, a plurality of rods for stationarily holding the brush and the current feeding plate, and a plurality of springs for applying a pressure onto the contact interface between the brush and the current receiving plate; a nozzle rotating mechanism for rotating the nozzle about the center axis thereof at a high speed to cause a circular movement of an arc from the tip of the consumable welding electrode corresponding to the eccentricity thereof; and a shielding gas feeding mechanism for feeding a shielding gas toward the arc and a weld zone.