Heating improvements in a preform reheat system

Details Heating improvements in a preform reheat system Heating improvements in a preform reheat system

1977-10-19

1980-05-20

Reynolds, Bruce A.

Electric heating

Heating devices

Combined with container, enclosure, or support for material...

219349, 219350, 219388, 425526, H05B 100, F27B 906, B29C 1707

Patent

active

042041112

ABSTRACT:
In the process of raising elongated thermoplastic preforms to molding temperature by programming heat from vertically adjacent heaters at different temperatures into vertical zones of rotating preforms advancing before the heaters, the improvement of preventing heat waves emanating from one heater toward an oppositely disposed preform zone from overlapping into an area through which waves are issuing from the next adjacent heater. The apparatus includes blind members between immediately adjacent heaters extending toward the preforms to concentrate heat onto the oppositely disposed preform zone.

REFERENCES:
patent: 1479819 (1924-01-01), Klueuer
patent: 2387804 (1945-10-01), Miskella
patent: 2497676 (1950-02-01), Lashells
patent: 3217139 (1965-11-01), Barber
patent: 3715109 (1973-02-01), Gilbert
patent: 3741044 (1976-05-01), Goltsos
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patent: 3950459 (1976-04-01), Seefluth
patent: 3975618 (1976-08-01), Goos et al.
patent: 3995990 (1976-12-01), Dwyer et al.
patent: 4072456 (1978-02-01), Appel et al.
patent: 4079104 (1978-03-01), Dickson et al.

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