Method and apparatus for heating thermoplastic bottle preforms

Details Method and apparatus for heating thermoplastic bottle preforms Method and apparatus for heating thermoplastic bottle preforms

1985-03-28

1986-08-19

Camby, John J.

Heating

Work chamber having heating means

Having means by which work is progressed or moved mechanically

165 2, 219388, 4251744, 425526, F27B 914, F27B 906, F25B 1300

Patent

active

046067230

ABSTRACT:
Thermoplastic preforms are heated in preparation for the blow molding of bottles therefrom in a tunnel (1) provided with infra-red radiators (13). Supports (19) for the preforms (17) move along the longitudinal axis of the tunnel while revolving. The enclosed space formed by the tunnel is connected to an exhaust blower (16) that draws in air through a longitudinal slot (3) in the bottom of the tunnel, through which the preforms extend, to thereby prevent the necks (18) of the preforms from becoming hot and deforming.

REFERENCES:
patent: 4076071 (1978-02-01), Rosenkranz et al.
patent: 4079104 (1978-03-01), Dickson et al.
patent: 4147487 (1979-04-01), Dickson et al.
patent: 4204111 (1980-05-01), Yonko
patent: 4209294 (1980-06-01), Vasilantone
patent: 4315725 (1982-02-01), Yoshino

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