Appeal No. 96-3174
Application 07/970,608
whereby compressive clamping force and motions commence before
rapid injection fill is completed”); and, column 35, lines 14-
18 (“applying the main clamp force of the injection molding
machine before completion of said injection, so as to reduce
the volume of the mold cavity”). In addition, we also note
column 17, lines 23-26 (“when transducer 67a signals the melt
has nearly been completely delivered to the mold cavities, the
compression portion of the process is commenced”).
In responding to this rejection, appellant notes column
28, lines 15-22 of Maus, which, in pertinent part, reads:
Once the injection unit 101 has delivered the
precisely predetermined volume of melt which
corresponds to that screw position on transducer 67a
which triggers the start of clamping compression,
the control system 88 causes cylinder 80b (in the
preferred embodiment) to elongate, thereby advancing
movable mold platen 90 towards stationary mold
platen 82.
According to appellant, this disclosure establishes that the
compression phase of Maus does not start until after the
completion of injection.
The issue here is whether Maus discloses applying a force
to the mold members to reduce the volume of the mold cavity
and compress, as by redistributing, the resin in the mold
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