Appeal No. 2003-0292 Page 6
Application No. 09/584,032
the reservoir 24. The air gun may be a conventional sand blasting gun; however, Louis
teaches that for a clear understanding of his invention it should be appreciated that in
the conventional use of such apparatus the abrasive action of the missile particles
remove material from the target surface whereas in the practice of his invention just the
opposite and hence unobvious result is obtained wherein the target surface is coated.
For large scale production, Louis teaches that conventional shot peening equipment will
be found very useful.
In example 7, steel balls were coated with finely divided metallic silver and
impacted against a piece of glass. In example 8, steel balls were coated with finely
divided metallic lead and impacted against a piece of glass.
Babecki
Babecki's invention relates to the metal plating of substrates such as metal
substrates. More particularly, his invention is directed to the deposition of metallic
coatings on other substrates by peening metallic powder onto the surface of the
substrates. Babecki teaches (abstract, lines 6-9) that his process has as one of its
advantages providing mechanical working (hardening) of the surface simultaneously
with the metal plating.
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