Appeal No. 95-4113
Application No. 08/124,334
against employing hindsight by using the appellant's disclosure
as a blueprint to reconstruct the claimed invention from the
isolated teachings of the prior art. See, e.g., Grain Processing
Corp. v. American Maize-Products Co., 840 F.2d 902, 907, 5 USPQ2d
1788, 1792 (Fed. Cir. 1988).
Independent claim 1 includes the limitation of impinging a
thin, highly intense flame on the drum and edge portions of the
superposed webs by directing it upwardly at an acute angle
against the drum and the edge portions. Independent claim 22
includes the limitation of directing a set of circumferentially
spaced flames upwardly at an angle of from 90° to 60° relative to
the axis of drum rotation against the section edge of the large
drum and the trimmed portions of the folded web as they project
from the section. Independent claim 23 includes the limitation
of impinging a thin, highly intense flame on the edge portions of
the superposed webs by directing it upwardly against the edge
portions to directly heat one of the edge portions while
connectively heating another edge portion shielded from the flame
by the one edge portion, the flame being emitted from a nozzle,
including an outlet tip portion having an axis disposed in a
radial plane which includes the axis of drum rotation and the tip
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