Control system for dynamic extruder

Details Control system for dynamic extruder Control system for dynamic extruder

1974-09-05

1976-11-23

Husar, Francis S.

Plastic article or earthenware shaping or treating: apparatus

Control means responsive to or actuated by means sensing or...

Feed control of material en route to shaping area

425149, 425380, B29D 2304

Patent

active

039934217

ABSTRACT:
A control system for a dynamic extruder wherein the pressure of the plastic melt is monitored and compared to a set point. When the melt pressure is equal to or greater than the set point, the supply of plastic to the extruder is halted, thereby preventing any increase in melt pressure and thereby precluding rupture of the extrusion die due to excess pressure.

REFERENCES:
patent: 2369553 (1945-02-01), Fields
patent: 3309436 (1967-03-01), Larsen
patent: 3382220 (1968-05-01), Bowman, Jr.
patent: 3526926 (1970-09-01), Reid
patent: 3711232 (1973-01-01), VAN Zon
patent: 3799719 (1974-03-01), Bonikowski et al.

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