Plastic article or earthenware shaping or treating: apparatus – Distinct means to feed – support or manipulate preform stock... – Female mold type means
Patent
1979-08-28
1981-06-23
Anderson, Philip
Plastic article or earthenware shaping or treating: apparatus
Distinct means to feed, support or manipulate preform stock...
Female mold type means
264 466, 264 469, 264268, 425812, 425817R, B29D 2700
Patent
active
042748224
ABSTRACT:
An apparatus for forming seal liners of thermoplastic material within closure cap shells comprisies: a plurality of movable dies each having an inner die and an annular outer die both of which are movable up and down in relatively slidable relation with each other and arranged so that the inner die takes its lowermost position after the outer die has taken its lowermost position; means for restricting downward movement of the outer die so as to provide a constant clearance between its lower end and an internal surface of a cap shell to be worked with, so that an annular foaming chamber of a constant capacity is formed beneath the lower end of the outer die; and a plurality of gas discharging grooves are provided so as to be communicated with the foaming chamber.
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Matsuyama Norihide
Tamai Shuichi
Anderson Philip
Osaka Nagayanagi Cork Ind., Co., Ltd.
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