Appeal No. 95-3862
Application No. 08/068,091
metal layer, said bearing alloy consisting essentially of, by
weight, 2-8% zinc, 0.1-8% silicon, 0.1-3% copper, 0.05-3%
magnesium and the balance of aluminium, wherein said multi-
layered bearing is a product of solution heat treatment at a
temperature of at least 450EC and artificial aging treatment at a
temperature of at most 250EC, and wherein said bearing alloy
layer has a hardness of at least Hv 71.
The examiner relies upon the following references as
evidence of obviousness:
Mori 4,170,469 Oct. 9, 1979
Ogawa et al. (Ogawa) 4,786,340 Nov. 22, 1988
Tanaka et al. (Tanaka) 5,028,393 July 2, 1991
Faure 5,110,372 May 5, 1992
Appellants' claimed invention is directed to a multi-layered
bearing comprising an aluminum base bearing alloy layer of the
recited composition and a backing metal layer. The multi-layered
bearing is the product of solution heat treatment and artificial
aging, and the bearing alloy layer has a hardness of at least
Hv 71.
Appealed claims 1-16 stand rejected under 35 U.S.C. § 103 as
being unpatentable over Mori or Tanaka in view of Ogawa or Faure.
We have carefully reviewed the respective positions advanced
by appellants and the examiner. In so doing, we agree with
appellants that the claimed invention, considered as a whole,
would not have been obvious to one of ordinary skill in the art
within the meaning of 35 U.S.C. § 103. Accordingly, we will not
sustain the examiner's rejection.
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