Static molds – Including means within surface to confine heat exchange medium – Mold part of particular material
Reexamination Certificate
2006-05-11
2009-10-27
Gupta, Yogendra (Department: 1791)
Static molds
Including means within surface to confine heat exchange medium
Mold part of particular material
C425S533000, C425S547000
Reexamination Certificate
active
07607633
ABSTRACT:
A mold system has a hollow outer mold part extending along a mold axis, a hollow inner mold part inside the outer mold part and forming therewith an elongated cup-shaped cavity adapted to hold a plastic mass for the production of a preform, and a cooling tube extending coaxially inside the hollow inner part and forming a passage having an inner portion inside the tube and an annular-section outer portion outside the tube and between an outer surface of the tube and an inner surface of the inner mold part. A cooler circulates a coolant fluid through the passage. A plurality of angularly spaced and generally axially extending support ribs extend radially from one of the surfaces toward the other surface in the outer passage portion.
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Gupta Yogendra
GWK Gesellschaft Warme Kaltetechnik mbH
Luk Emmanuel S
Wilford Andrew
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