Appeal No. 2000-0650
Application No. 08/599,668
appellants’ admitted prior art (especially Saunders ‘737) as
evidence that it was well known in this art to use the winding
and mounting steps in stator windings of the wire of Saunders
(id.). From these findings, the examiner concludes that it would
have been obvious to one of ordinary skill in the art to use the
known amide external lubricants, as admitted by appellants’
specification and shown by Watanabe, as the lubricant coating for
the insulated wire of Saunders in the known process steps of
forming a stator winding (Answer, pages 5-6). We disagree.
As correctly argued by appellants, Watanabe does not
disclose an amide external lubricant but adds all the materials,
including the lubricant, in one composition to form the
electrical insulating composition (Brief, page 7). See Watanabe,
col. 1, ll. 11-16; col. 3, ll. 46-52; and Examples 3-5.
The examiner has also misconstrued appellants’ admission of
prior art on page 1 of the specification. The specification
discloses, at page 1, ll. 15-29, that
It is known from the DE Offenlegungsschrift 1947071
and the GB Patent Specifications 1175059 and 1175060 to
provide electrical cables with lubricants for the
purpose of reducing the mutual friction between the
cables. When such a lubricant is added to the
insulating layer around the conductor ....
The preferred lubricant added to the insulating
layer of polyolefin according to the above-mentioned
documents is an amide which is added in various amounts
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