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. 10, 1997
Filed:
Apr. 13, 1995
Applicant:
Inventors:
Timothy F Shelton, Xenia, OH (US);
Jeffrey L Dulaney, Dublin, OH (US);
Assignee:
Vernay Laboratories, Inc., Yellow Springs, OH (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23K / ;
U.S. Cl.
CPC ...
21912185 ; 21912169 ; 21912184 ; 134-1 ;
Abstract
A method and apparatus for cleaning equipment surfaces using a laser. A barrier layer is provided at a surface to be cleaned prior to being impinged by light from a laser in order to avoid degradation in the form of oxidation of the surface. The laser light causes residual material on the surface to be removed while the barrier layer ensures that energy from the laser light is evenly distributed. In addition, the barrier layer shields the surface from oxygen to thereby prevent oxidation of the surface.