Appeal No. 2001-0789 2
Application No. 09/106,625
THE INVENTION
The invention is directed to an alkaline electrochemical cell having a steel casing
preplated on the inside with a layer of nickel. A layer of cobalt is applied over the nickel
layer. A layer of carbon is applied over the cobalt layer. Additional limitations are
described in the following illustrative claim.
THE CLAIMS
Claim 1 is illustrative of appellants’ invention and is reproduced below.
1. An alkaline electrochemical cell comprising a cylindrical steel casing housing the
contents of said cell, a positive and a negative terminal, an anode comprising zinc, a
cathode comprising manganese dioxide, and aqueous alkaline electrolyte solution, wherein
the inside surface of said steel casing is preplated with a layer of nickel, said steel casing
being coated on the inside surface with a coating comprising a layer comprising cobalt and
a layer comprising carbon, wherein said layer comprising cobalt is applied over said nickel
layer and the layer comprising carbon is applied over said cobalt layer.
THE REFERENCES OF RECORD
As evidence of obviousness, the examiner relies upon the following references:
Schneider et al. (Schneider) 4,760,002 Jul. 26, 1988
Junkers et al. (Junkers) 4, 910,096 Mar. 20, 1990
Bennett 5,302,473 Apr. 12, 1994
Mototani et al. (Mototani) 5,721,072 Feb. 24, 1998
Canadian Patent (Canada ‘697) 1263697 Dec. 05, 1989
THE REJECTIONS
Claims 1, 5 through 7, 9 through 15, 18 through 23 and 25 stand rejected under
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