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:
Mar. 03, 1987
Filed:
Jul. 22, 1985
Kazushige Hirasawa, Kawanishi, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A consumable electrode type pulse arc welding machine is provided with means for controlling a welding output of the welding machine and the control means comprises a short-circuiting detector circuit for detecting the number of times of short-circuiting n occurring between an electrode wire and a weld part of a base metal at predetermined time intervals during a welding operation, a processing unit for calculating n.sub.d =n.sub.s -n, where n.sub.s is a preset number of short-circuiting times, and a control means for controlling a welding output of the welding machine by decreasing the welding arc voltage in accordance with the magnitude of n.sub.d, when n.sub.d is larger than zero, and by increasing the welding arc voltage in accordance with the magnitude of .vertline.n.sub.d .vertline., when n.sub.d is smaller than zero.