Thermoforming apparatus

Plastic article or earthenware shaping or treating: apparatus – Preform reshaping or resizing means: or vulcanizing means... – Including shaping means comprising fluid pressure contacting...

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Details

425126R, 425143, 4254031, B29C 1700

Patent

active

044627866

ABSTRACT:
Thermoforming apparatus having a heating station and a forming station provided with upper and lower heaters for softening the thermoplastics sheet material. One of the heaters is movable between the heating and forming stations and is arranged to convey heated sheets from the heating station of the forming station.

REFERENCES:
patent: 3561057 (1971-02-01), Butzko
patent: 3785762 (1974-01-01), Butzko
patent: 3810731 (1974-05-01), Anderson
patent: 3954374 (1976-05-01), Wommelsdorf et al.
patent: 4252518 (1981-02-01), Kiefer
patent: 4368022 (1983-01-01), Orii

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