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. 20, 1994
Filed:
May. 21, 1993
Applicant:
Inventors:
R Bruce Madigan, Longmont, CO (US);
Timothy P Quinn, Boulder, CO (US);
Assignee:
The United States of America as represented by the Secretary of Commerce, Washington, DC (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23K / ;
U.S. Cl.
CPC ...
21913001 ; 21913021 ; 21913771 ;
Abstract
An gas metal arc welding (GMAW) process is monitored by disposing a light intensity sensor in the vicinity of the arc, such that the output signal from the sensor is responsive to the intensity of the arc. The arc light intensity is analyzed to determine the arc length, and to determine of the mode of metal transfer and whether the welding process is proceeding as intended.