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. 14, 1991
Applicant:
Inventors:
David G Tashjian, Wilmington, NC (US);
Shawn K Murphy, Wilmington, NC (US);
Assignee:
General Electric Company, San Jose, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23K / ;
U.S. Cl.
CPC ...
21912163 ; 21912164 ; 21912178 ; 21912182 ; 21912183 ;
Abstract
To produce precision laser weld joints at weld sites on a workpiece, a TV camera views each weld site through the laser beam optics, and the video output is stored as pixel data in a frame grabber memory. A computer processes the pixel data in accordance with an algorithm to locate the position of the optimum weld point for the imaged weld site relative to the laser beam centerline in the camera field of view and then indexes a X-Y positioning table to fine position the workpiece with the located optimum weld point precisely aligned with the laser beam centerline.