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:
Mar. 17, 1998
Filed:
Feb. 29, 1996
Kenneth J Swidwa, N. Huntingdon, PA (US);
Westinghouse Electric Corporation, Pittsburgh, PA (US);
Abstract
Welds made by pulses of laser energy are evaluated on-line by analyzing light emitted from the weld site during application the laser pulses. The pulses of light from the weld site are compared with base pulses generated from a good weld, and are used to calculate parameters such as heat-up rate and peak temperature which in turn, are analyzed to determine weld quality. For use in welding in confined spaces such as heat exchange tubes, and particularly the tubes in a PWR steam generator, a single optic fiber delivers the laser energy pulses to the weld site and transmits light from the weld site back to a splitter which diverts it to detectors for conversion to electrical signals used to generate a graphical display.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile