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
Patent
1978-12-20
1980-07-29
Thurlow, Jeffery R.
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
264 407, 366151, 366156, 425376A, B29F 306
Patent
active
042148596
ABSTRACT:
Regulating apparatus for the output of an extruder so that the output can be varied to follow variations in the output of a polymerization system supplying melt to the extruder, the apparatus including filling level measuring means in a melt container feeding an intake opening of the extruder and itself supplied with melt by the polymerization system and a flow restrictor provided in the extruder cylinder between the intake opening and a discharge opening, the extent of the restriction of flow provided by the flow restrictor being adjusted in accordance with signals received from the filling level measuring means and the extruder having an output capacity such that, with the flow restriction reduced to zero, the extruder can process the maximum output capacity of the polymerization system.
REFERENCES:
patent: 3070836 (1963-01-01), DeHaven
patent: 3158900 (1964-12-01), Heston
patent: 3704972 (1972-12-01), Kneller et al.
Hermann Berstorff Maschinenbau GmbH
Thurlow Jeffery R.
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