Heater for sheet material

Details Heater for sheet material Heater for sheet material

1992-12-21

1994-04-26

Reynolds, Bruce A.

Electric heating

Heating devices

With heating unit structure

219216, 355290, 338308, H05B 316

Patent

active

053068980

ABSTRACT:
A heater for a sheet material comprises an insulating substrate and a main resistor strip formed on the substrate. The substrate is further formed with auxiliary resistor strips adjacent to both ends of the main resistor strip. In operation, the main and auxiliary resistor strips are actuated simultaneously for heat generation. As a result, the additional heat generated by the auxiliary resistor strips compensates for higher heat dissipation at both ends of the heater, thereby equalizing the temperature distribution longitudinally of the heater.

REFERENCES:
patent: 2606987 (1952-08-01), Winstead
patent: 4626664 (1986-12-01), Grise
patent: 5041718 (1991-08-01), d'Hondt et al.
patent: 5068517 (1991-11-01), Tsuyuki et al.
patent: 5083168 (1992-01-01), Kusaka et al.

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