Electric heating – Heating devices – With heater-unit housing – casing – or support means
Patent
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
Sikora Robert
Tomaszewski Jerzy
Wlodarczyk Irena
Akademia Techniczno-Rolnicza im Jana
Lodzkie Zaklady Termotechniczne "Techma-Elcal"
Preston Gerald E.
Shaw Clifford C.
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