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:
Sep. 01, 1981
Filed:
Oct. 02, 1979
Applicant:
Inventors:
Takashi Ohmae, Hiroshima, JP;
Yasuhiro Fukaya, Hiroshima, JP;
Yasuyuki Yoshida, Hiroshima, JP;
Tamotu Oka, Hiroshima, JP;
Masahiko Sato, Hiroshima, JP;
Masazumi Nagareda, Saka, JP;
Assignee:
Mitsubishi Jukogyo Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23K / ;
U.S. Cl.
CPC ...
219136 ; 15319 ; 9811 / ; 180167 ; 2191 / ; 21913741 ;
Abstract
During arc welding, optical radiation emitted from an arc is detected by means of a photoelectric device, and an electric detection signal from the photoelectric device is used for controlling the travel of a suction hood along a weld line so that the weld fumes may be exhausted through the suction hood and to insure that the weld metal zone is always covered by the suction hood.