Appeal 2007-1835
Application 10/509,861
the mold that faces away from the melt contact surface, in which mold, in
conformity with the design of the cooling channels (1), the cooling effect of
the cooling channels (1) is maximized in the region of the maximum heat
flux density or the maximum temperature of the contact surface (18),
wherein the local heat-transfer cooling channel surfaces are adapted
varyingly via geometric designs of the heat-transfer surface areas of a
cooling channel (1) or of a group of cooling channels in shape, cross-
sectional area, circumference, boundary surface properties, and orientation
relative to the contact surface to the local development of the heat flux
density and/or temperature of the contact surface (18) in the casting
operation, such that to influence the local cooling intensity of a cooling
channel (1), its effective heat-exchange surfaces on the base of the channel
or on the lateral surfaces are increased or decreased, and to influence the
local cooling intensity of a cooling channel (1), its isoperimetric cross-
sectional area is increased by providing additional grooves in the base or
lateral surfaces or decreased by inserting displacement bodies.
The Examiner rejected claims 1-5, all of the pending claims, under 35
U.S.C. § 102(b) as anticipated by GB 1,082,988. This is the sole ground of
rejection. The Examiner’s rejection reads as follows:
As to claims 1 and 5, GB '988 disclose a mold for continuous
casting comprising cooling channels, such as cooling bores, in
the side of the mold. The varyingly geometric design of the heat
transfer surface areas of a cooling channel are adapted in shape,
cross-sectional area, to the local development of the heat flux
density in the casting operation. The effective heat exchange
surfaces on the base of the channel can be increased or
decreased, to influence the local cooling intensity (figures).
(Answer 3).
Appellants contend that GB ‘988 fails to anticipate the claims because “[a]t
no point does GB ’988 disclose or suggest that the ‘cooling channel surfaces
are adapted . . . in shape, cross-sectional area, . . . to the local development
2
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Last modified: September 9, 2013