Edge thickness control system

Details Edge thickness control system Edge thickness control system

1984-08-30

1989-02-14

McIntosh, John

Coating processes

Measuring, testing, or indicating

Thickness or uniformity of thickness determined

118665, 118696, 118410, 264 401, 425141, 425466, B05C 502

Patent

active

048045560

ABSTRACT:
A control system for controlling the edge thickness of an extrudate includes an arrangement responsive to a signal representative of the monitored thickness of the extrudate emanating from a die slot controlled by a transversely inward heating element for generating a control set point for that heating element and for a heating element controlling the die slot adjacent a lateral edge thereof.

REFERENCES:
patent: 3940221 (1976-02-01), Nissel
patent: 4454084 (1984-06-01), Smith et al.
patent: 4507073 (1985-03-01), Shelton

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