Molding device for forming a liner inside of a closure shell

Details Molding device for forming a liner inside of a closure shell Molding device for forming a liner inside of a closure shell

1981-03-23

1983-06-14

Flint, Jr., J. Howard

Plastic article or earthenware shaping or treating: apparatus

Distinct means to feed, support or manipulate preform stock...

425129R, 425809, B29C 104, B29C 300, B29C 600

Patent

active

043880584

ABSTRACT:
A molding device for forming a liner on the inside surface of the top panel of a closure shell. The device has a molding tool disposed above an anvil which is relatively movable towards and away from the tool by an elevator mechanism. The molding tool includes a center punch. An annular bushing is positioned externally of the center punch and is movable over a predetermined range with respect to the punch. Resilient means are provided for urging the bushing upwardly with respect to the punch and a lowering mechanism is included for moving the bushing downwardly against the force of the resilient means.

REFERENCES:
patent: 2881475 (1959-04-01), Wilckens
patent: 3366723 (1968-01-01), Green
patent: 3674393 (1972-07-01), Busi
patent: 3807924 (1974-04-01), Mingotti
patent: 3827843 (1974-08-01), Blouch
patent: 4274822 (1981-06-01), Tamai et al.

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