Continuous rotary thermo-forming systems and apparatus of the pr

Details Continuous rotary thermo-forming systems and apparatus of the pr Continuous rotary thermo-forming systems and apparatus of the pr

1982-04-20

1983-12-13

Hoag, Willard E.

Plastic article or earthenware shaping or treating: apparatus

Control means responsive to or actuated by means sensing or...

Cutter control

425143, 425149, 425150, 425308, 425310, 4253261, 425345, 425350, 425377, 425388, 425DIG60, B29C 1704, B29C 1710, B29D 702

Patent

active

044203004

ABSTRACT:
Apparatus for continuous thermoforming of sheet material including an extruder, stretching means, a rotary wheel having female mold means thereon and plural plug-assist means interlinked so as to form an orbiting device having the plug-assist members engaging the sheet material about a substantial arc of wheel surface and means to reciprocate the plug assist members into and out of engagement with the female mold means.

REFERENCES:
patent: 2949639 (1960-08-01), Woodward
patent: 3071812 (1963-01-01), Miller
patent: 3238565 (1966-03-01), Jacobs
patent: 3329306 (1967-07-01), Stein
patent: 3667889 (1972-06-01), Martelli
patent: 3770860 (1973-11-01), Amberg et al.
patent: 4061706 (1977-12-01), Duffield et al.
patent: 4211743 (1980-07-01), Nauta et al.
patent: 4235579 (1980-11-01), Kurz et al.
patent: 4239727 (1980-12-01), Myers et al.
patent: 4244915 (1981-01-01), Boardman

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