Two stage mold centering system

Details Two stage mold centering system Two stage mold centering system

1988-07-01

1989-08-15

Chiesa, Richard L.

Plastic article or earthenware shaping or treating: apparatus

Core and positioning means therefor

249105, 249144, 249175, 425192R, 425577, B29C 4536

Patent

active

048569771

ABSTRACT:
A mold comprising a mold core and mold cavity defines means which permits and controls a slight outward stretching of the mold cavity from a first positively centered position to a second positively centered position. By this means, precision centering of the mold and core can be achieved even under ultra high molding pressures without significant core shift.

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