Appeal No. 1998-0256
Application No. 08/395,768
assembly is achieved by an undercut in each of the confronting
sidewalls of the groove intended for gouging engagement by
locking screws or pins to insure that the dam during use will
not slide or otherwise move around or become loose to avoid
the danger that a loose dam would fly away from a rotating
insert and cause injury to a lathe operator. Thus, appellant
teaches the solution to the problem of a dam flying off a
rotating insert and causing injury is to provide an undercut
in each of the walls of the groove for engagement by locking
members (screws or pins). Simply stated, appellant’s
specification offers no suggestion whatsoever that an undercut
provided in one sidewall of the groove, when engaged by a
screw or pin, would so secure a dam that the problem of the
dam flying off a rotating insert and causing injury would be
solved thereby.
Clearly, appellant’s disclosure can fairly be viewed as a
restricted or narrow disclosure. It offers a preferred
embodiment (Fig. 7) to solve the noted dam securement problem
that requires an undercut in each of the two sidewalls of the
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