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.

Date of Patent:
Sep. 29, 1981

Filed:

Jul. 05, 1979
Applicant:
Inventors:

Lennart Selander, Balsta, SE;

Lars Fahlen, Vallingby, SE;

Ladislav Sipek, Taby, SE;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23K / ;
U.S. Cl.
CPC ...
219 74 ; 2191 / ; 252372 ; 252374 ;
Abstract

In welding or working operations using an electric arc a nitrogen compound is introduced into the working or welding area for the purpose of decomposing ozone in said area. The nitrogen compound is preferably purely nitric oxide, but may also be nitrous oxide (N.sub.2 O) or ammonia (NH.sub.3).


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