Device for moulding containers

Details Device for moulding containers Device for moulding containers

1986-10-07

1987-09-22

Woo, Jay H.

Plastic article or earthenware shaping or treating: apparatus

Preform reshaping or resizing means: or vulcanizing means...

Including shaping means comprising fluid pressure contacting...

264550, 264292, 264296, 425291, 425398, 425400, B29C 5106, B29C 5120

Patent

active

046952438

ABSTRACT:
There have been provided synthetic resin food containers and the method and device for moulding the containers.
The container has a bottom wall, a side wall extending at an obtuse angle to the bottom wall and a rim or legs extending from the undersurface of the bottom wall.
The device comprises a male mould including a main body, a bottom forming portion received in the main body for vertical movement relative to the main body and a pressurizing portion disposed for vertical movement relative to the bottom forming portion; and a female mould for receiving a portion of the bottom forming portion.
The method comprises the steps of forcing said portion of the bottom forming portion into the female mould to form the bottom of the container, raising the bottom forming portion and substantially simultaneously move the pressurizing portion to form the rim or legs on the bottom of the container.

REFERENCES:
patent: 4563325 (1986-01-01), Coffman

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