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. 22, 1993
Filed:
Jan. 17, 1992
Applicant:
Inventor:
Akaru Usui, Aichi, JP;
Assignee:
Mitsubishi Denki K.K., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23K / ;
U.S. Cl.
CPC ...
21912178 ; 21912163 ; 21912167 ; 21912184 ;
Abstract
A laser machining apparatus having a laser oscillator connected to a laser robot by a beam transmitting apparatus made of beam ducts, in which the beam ducts are hermetically sealed between the outlet of the laser oscillator and the laser beam outlet of laser robot, and a working gas supplying inlet is mounted at an upper portion of the beam ducts for transmitting of the gas through the beam ducts and outputting of the gas at a nozzle in the laser robot head. According to the above construction, the present invention is able to prevent an occurrence of the heat lens phenomenon, and also able to prevent fumes and dust from entering into the beam duct.