Electric heater especially for machines and tools for processing

Details Electric heater especially for machines and tools for processing Electric heater especially for machines and tools for processing

1986-06-20

1988-02-02

Shaw, Clifford C.

Electric heating

Heating devices

With heater-unit housing, casing, or support means

219420, 219421, 219422, 219423, 219424, H05B 358

Patent

active

047230703

ABSTRACT:
A heater has two, hollow, half-cylindrical heat guides fastened to each other at one side by an articulated connector and at the other side by a bolted joint. Internal surfaces of the heat guides represent the shape of the object being heated. On external surfaces of the heat guides, there are a series of, preferably flat splines. Lamellar heating elements are fastened to the splines. Mutual adherence surfaces of the heating elements and splines are shaped according to geometrical patterns, the appropriate selection of which changes the thermal characteristics of the heater over a wide range. The heater may be supplied from single- or three-phase mains. The heater is applicable especially for heating the cylinders, nozzles and tools of injection moulding and extrusion machines.

REFERENCES:
patent: 4292503 (1981-09-01), Brent
patent: 4438325 (1984-03-01), Gellert
patent: 4449038 (1984-05-01), Reich et al.
patent: 4451974 (1984-06-01), Gellert

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