Plastic article or earthenware shaping or treating: apparatus – Preform reshaping or resizing means: or vulcanizing means... – Including shaping means comprising fluid pressure contacting...
Patent
1982-08-13
1984-07-31
Czaja, Donald E.
Plastic article or earthenware shaping or treating: apparatus
Preform reshaping or resizing means: or vulcanizing means...
Including shaping means comprising fluid pressure contacting...
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
Becker Mary A.
Czaja Donald E.
M. L. Shelley & Partners Limited
Schaffer Murray
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