Coating processes – Spray coating utilizing flame or plasma heat
Reexamination Certificate
2007-05-22
2007-05-22
Parker, Fred J. (Department: 1762)
Coating processes
Spray coating utilizing flame or plasma heat
C427S248100, C427S421100, C427S299000
Reexamination Certificate
active
11140661
ABSTRACT:
A method for applying a protective coating on an article, comprising the following steps: selecting an article with a surface for applying a coating thickness; creating undercut grooves on the article, where the grooves depend beneath the surface to a bottom portion with the grooves having an upper width on the surface and a lower width on the bottom portion connected by side walls, where at least one of the side walls connects the upper width and the lower width to form an undercut angle with the surface less than 90°; and, applying the protective coating onto the article to fill the undercut grooves and cover the surface, thereby forming weak paths within the protective coating.
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H.S. Ingham and A.P. Shepard,Flame Spray Handbook, vol. 1, Metco, Inc. (1964).
Bartram Brian
Hollis Kendall
Fitzgerald Mark N.
Los Alamos National Security LLC
Parker Fred J.
Teeter Holly L.
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