Plastic article or earthenware shaping or treating: apparatus – Preform reshaping or resizing means: or vulcanizing means... – Coacting shaping surfaces
Patent
1988-11-30
1990-09-25
Housel, James C.
Plastic article or earthenware shaping or treating: apparatus
Preform reshaping or resizing means: or vulcanizing means...
Coacting shaping surfaces
264321, 425399, 425400, 425444, 249 68, B29C 5130
Patent
active
049590049
ABSTRACT:
An apparatus for the safe and efficient shaping of a heat-formable resilient material includes an upright male shaping member, a female molding member having a cavity adapted to matingly receive the upright male shaping member, a retractable hold-down knockout pin extending through the female molding cavity to a predetermined distance from the upright male shaping member when the pad-forming device is in the open position so that the resilient material can be inserted between the hold-down knockout pin and the upright male shaping member. The hold-down knockout pin moves away from the upright male shaping member to a retracted position when the pad-forming device is closed and advances towards the male shaping member to eject any shaped pads which might adhere to the female molding cavity while returning to the advanced position at a predetermined distance from the upright male shaping member.
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Housel James C.
Sure-Cast Pattern Works, Inc.
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