Device for the manufacture of deep-drawn objects using synthetic

Details Device for the manufacture of deep-drawn objects using synthetic Device for the manufacture of deep-drawn objects using synthetic

1974-07-17

1976-05-04

Flint, Jr., J. Howard

Plastic article or earthenware shaping or treating: apparatus

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

Including shaping means comprising fluid pressure contacting...

425398, 425387R, B24C 1703

Patent

active

039543749

ABSTRACT:
A process and apparatus for forming objects of thermoplastic material by deep-drawing in which portions of a foil are cut to a size appropriate for each object, and are then freely supported while heating to the desired temperature. After heating the cut-out portions are tensioned about the edges thereof for the deep-drawing step. Modifications include multiple stations for heating and deep-drawing and means may be provided for deep-drawing the foil into a permeable container so as to line it with the deep-drawn thermoplastic material.

REFERENCES:
patent: 2935828 (1960-05-01), Mahoffy et al.
patent: 3159695 (1964-12-01), Behringer
patent: 3235639 (1966-02-01), Knowles
patent: 3348266 (1967-10-01), Brown et al.
patent: 3507007 (1970-04-01), Martin
patent: 3661484 (1972-05-01), Psota et al.
patent: 3661489 (1972-05-01), Moore
patent: 3739052 (1973-06-01), Ayres et al.

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