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:
Dec. 01, 1992
Filed:
Jun. 27, 1991
Applicant:
Inventors:
Toshinori Hongu, Nishinomiya, JP;
Naoki Kawai, Ikeda, JP;
Torafumi Takemoto, Toyonaka, JP;
Koji Hamamoto, Takarazuka, JP;
Assignee:
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23K / ;
U.S. Cl.
CPC ...
21913771 ;
Abstract
A power apparatus is used in an arc welding device to control a weld operation during a welding start time. An improved arc start performance is obtained in both a cooled condition of the welding wire tip end portion and a red heated condition thereof. A feed quantity of the consumption electrode during the weld start time is changed depending on whether the welding wire tip end portion is cooled or red heated from a prior arc welding operation.