Appeal 2007-0612
Application 09/838,866
THE INVENTION
The Appellant claims a horseshoe made of a specified metal matrix
composite. Claim 1 is illustrative:
1. A metal matrix composite horseshoe having
improved vibration damping and stiffness, said horseshoe
comprising a metal matrix composite that is formed from
a molten metal selected from the group consisting of
aluminum, magnesium, titanium and mixtures thereof,
and from particles of silicon hexaboride and mixtures
thereof, said silicon boride composition being present in
a range from about 0.1 to about 80 weight percent in said
molten metal.
THE REFERENCES
Eom US 5,344,608 Sep. 6, 1994
Weaver US 5,573,607 Nov. 12, 1996
THE REJECTION
Claims 1-14 stand rejected under 35 U.S.C. § 103 as being unpatentable over
Eom in view of Weaver.
OPINION
We reverse the aforementioned rejection and remand the application to the
Examiner.
Eom discloses a race horse horseshoe comprised of a metal alloy made by
mixing, by weight, 0.5-0.10% Si, 0.05-0.1% Fe, 0.10-0.20 % Cu, 0.10-0.20% Mn,
3.00-5.00% Mg, 0.05-0.15% Cr, 0.05-0.10% Zn, and 96.6-94.15% Al (col. 1,
2
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