Plastic article or earthenware shaping or treating: apparatus – With separate and distinct upstream agitating or kneading means – Mixing roll type
Patent
1992-11-24
1994-10-18
Mackey, James
Plastic article or earthenware shaping or treating: apparatus
With separate and distinct upstream agitating or kneading means
Mixing roll type
100156, 141 73, 141 79, 198642, 198723, 406 52, 406 99, 406102, 415 90, 425205, 4253812, 425449, B29C 3100
Patent
active
053562801
ABSTRACT:
A rotary channel pump apparatus for compressing solids that have an initial bulk density which is substantially lower than their structural density; the apparatus comprises a flow channel having an inlet and an outlet and includes: (i) an annular drag flow channel segment (L1) formed between a stationary outer wall member and a rotating circular inner wall member; and (ii) a straight channel segment (L2) formed between a first planar and stationary wall portion and a second planar and stationary wall portion; no axial cross-section of the flow channel between the inlet and the outlet is smaller than the axial cross-section at the inlet; a rotary feeder is connected to the flow channel near the inlet thereof for precompacting the particulate solid which is then passed through the flow channel to substantially increase the bulk density and to avoid melting and/or thermal degradation of the particulate solid when passing through the flow channel.
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GPW Machine S.a.S. di Giuseppe Ponzielli & C.
Mackey James
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