Pump for thermoplastic materials with heater means

Details Pump for thermoplastic materials with heater means Pump for thermoplastic materials with heater means

1979-12-17

1982-05-11

Vrablik, John J.

Rotary expansible chamber devices

Heat exchange or non-working fluid lubricating or sealing

418206, 425379R, F04C 218, F04C 1500, B25F 308

Patent

active

043291287

ABSTRACT:
A gear-type pump for thermoplastic materials including synthetic and natural polymers or resins, the pump including a housing, intermeshing gears disposed in the housing, the housing having an inlet conduit for directing bulk thermoplastic materials to the gears and an outlet conduit for movement of the material from the gears, and heater structure disposed in the housing and proximate the gears and the inlet and outlet conduits to impart heat to the material as the material flows through the pump.

REFERENCES:
patent: 3113525 (1963-12-01), Mello
patent: 3280802 (1966-10-01), Froede
patent: 3286700 (1966-11-01), Froede
patent: 3292601 (1966-12-01), Bensinger et al.
patent: 3746481 (1973-07-01), Schippers
patent: 3799708 (1974-03-01), Leptien
patent: 3837768 (1974-09-01), Haupt
patent: 4032391 (1977-06-01), Moked et al.
patent: 4035112 (1977-07-01), Hackbarth et al.
patent: 4037998 (1977-07-01), Goloff

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