Appeal 2007-1922
Application 10/051,200
the moveable core having an outside configuration essentially
identical to the concavities when the mold segments are mated with
each other, the core having integrally attached to the bottom thereof, a
stem, said stem being slidably mounted in the opening in the
concavity of the lower mold segment and extending beyond the
bottom surface of the lower mold segment, said stem having centered
therethrough, an opening;
the centered opening in the core having an air valve located in
and near the near end thereof, said centered opening in the core and
said centered opening in the stem being interconnected to allow the
intermittent passage of gas therethrough, there being a space created
between the outside configuration of the core and the concavities
when the mold segments are mated;
(II) providing a clamping force on the mold;
(III) injecting liquid moldable material into the upper mold segment via the
upper mold segment opening and allowing the liquid moldable material to
fill the space created between the outside configuration of the core and the
concavities;
(IV) allowing the liquid moldable material to become a solid molded
product;
(V) removing the clamping force on the mold and separating the upper mold
segment and the lower mold segment and thereafter, moving the core from
the lower mold segment;
(VI) thereafter, injecting gas into the centered opening in the stem, thereby
opening the gas valve in the near end of the centered opening in the core,
and allowing the solid molded product to be inflated by the injected gas until
the solid molded product is released from the core and thereafter, removing
the solid molde4d product from the mold.
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Last modified: September 9, 2013