Agitating – Having specified feed means – Returning material to supply
Patent
1977-07-11
1978-11-21
McCarthy, Edward J.
Agitating
Having specified feed means
Returning material to supply
366131, 366160, 366161, 366267, B01F 1500
Patent
active
041263995
ABSTRACT:
Method and apparatus for preparing multi-component plastic materials wherein at least one of the components is compounded with admixed solid materials or is highly viscous, the various components are continuously recycled and are metered separately by associated continuously operating feed pumps, and a mixing operation is effected in a mixing chamber served by a control piston. In the circuit for the compounded or viscous component a transmitter device is connected in a position downstream of the respective continuously operating feed pump and upstream of the associated mixing chamber inlet port. This transmitter device operates in a manner similar to a piston pump and increases the delivery pressure of the compounded or viscous component upon discharge into the mixing chamber whereby the operation of the transmitter is operatively coupled to the operation of the control piston at the mixing chamber. The component circuit may furthermore include a filling pump and a check valve.
REFERENCES:
patent: 2847196 (1958-08-01), Franklin
patent: 2903248 (1959-09-01), Walker
patent: 3051455 (1962-08-01), Magester
patent: 3067987 (1962-12-01), Ballou
Grgic Ivica
Schneider Fritz W.
Elastogran Maschinenbau GmbH & Co.
McCarthy Edward J.
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