Temperature controllable heater plate for molds

Details Temperature controllable heater plate for molds Temperature controllable heater plate for molds

1978-03-10

1980-06-17

Reynolds, B. A.

Electric heating

Heating devices

With heating unit structure

219201, 219243, 219245, 249 78, H05B 372

Patent

active

042085748

ABSTRACT:
A heater plate for plunger-type molding presses comprises a plurality of electrically heated heating elements which are inserted into holes through the plate. These holes are disposed in rows parallel to the peripheral outline of the plate so that the density of the heating elements decreases toward the center of the plate. The heating elements are interconnected and also connected to a temperature control device so that the heating elements can be selectively heated whereby the plate can be uniformly heated in spite of higher heat loss at marginal portions of the plate.

REFERENCES:
patent: 1618406 (1927-02-01), Brundidge
patent: 3317709 (1967-05-01), Beasley
patent: 3335459 (1967-08-01), Tyrner
patent: 3393292 (1968-07-01), Ritscher
patent: 3412231 (1968-11-01), McElligott
patent: 3624836 (1971-11-01), Rohdiw
patent: 4081313 (1978-03-01), McNeilly et al.

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