Apparatus for mixing and processing plastic material including a

Details Apparatus for mixing and processing plastic material including a Apparatus for mixing and processing plastic material including a

1992-04-21

1994-05-10

Hornsby, Harvey C.

Agitating

Rubber or heavy plastic working

With specified discharge means

366191, 425205, B01F 708, B01F 1502

Patent

active

053102568

ABSTRACT:
A mixing and processing apparatus for plastic melt is equipped with a separately drivable gear pump as a delivery unit. In order to avoid material deposits between the mixing and processing apparatus and the delivery pump, the gear pump is directly mounted at the outlet end of the mixing and processing apparatus, such as an extruder, so that the plastic melt is directly fed axially into the suction space of the gear pump. Cleaning operations after shutdown or in the case of change of material are eliminated due to this direct transfer without dead space.

REFERENCES:
patent: 1516963 (1924-11-01), Johnson
patent: 1595470 (1926-08-01), Johnson
patent: 2692405 (1954-10-01), Gaylor
patent: 2767437 (1956-10-01), Marshall
patent: 4171193 (1979-10-01), Rahlfs
patent: 4707139 (1987-11-01), Valenzky et al.
patent: 4721589 (1988-01-01), Harris
Patent Abstracts of Japan, vol. II, No. 71 (JP A-61-228925).

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