Fluent material handling – with receiver or receiver coacting mea – Diverse fluid containing pressure filling systems involving... – Filling with exhausting the receiver
Patent
1984-03-14
1985-12-03
Bell, Jr., Houston S.
Fluent material handling, with receiver or receiver coacting mea
Diverse fluid containing pressure filling systems involving...
Filling with exhausting the receiver
141 67, 141 72, 141250, B65B 104
Patent
active
045560900
ABSTRACT:
A vacuum fluidized powder feed apparatus for filling an evacuated mold. The fluidized powder feed apparatus has a feed cup defining a cylindrical cavity for holding a quantity of powdered material and a powder exit aperture provided through the bottom of the feed cup mating with the fill aperture of the mold. A porous annulus disposed at the bottom of the cylindrical cavity has a conically shaped internal surface sloping toward and mating with the exit aperture of the feed cup. Vent holes provided in the side walls of the feed cup cause a fluid flow through the porous annulus into the interior of the cylindrical cavity which is connected to the evacuated mold cavity through the exit aperture. A pneumatic piston received in the cylindrical cavity engages the top of the powdered material and produces a force cavity urging the powdered material towards the exit aperture. The fluid flow through the porous annulus fluidizes the powdered material enhancing its flowability through the exit aperture into the evacuated mold cavity. The powder feed apparatus and powder mold may be vibrated to further enhance the powdered material into the mold cavity and the distribution of the powdered material in the mold cavity.
REFERENCES:
patent: 3336955 (1967-08-01), Feldman et al.
patent: 3338999 (1967-08-01), Knapp
patent: 3353572 (1967-11-01), Anderson et al.
patent: 3856441 (1974-01-01), Suzukawa et al.
patent: 3963459 (1976-06-01), Vinard
patent: 4278113 (1981-07-01), Persson
Allied Corporation
Bell, Jr. Houston S.
Ignatowski James R.
Wells Russel C.
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