Package making – With contents treating – Vacuum or inert atmosphere
Patent
1993-03-23
1994-09-20
Coan, James F.
Package making
With contents treating
Vacuum or inert atmosphere
53 86, 53434, 53469, 53526, B65B 3102
Patent
active
053477936
ABSTRACT:
A vacuum filling machine and method are provided for use in filling a porous pouch with microporous powder. The machine has a housing sealable in an air tight manner. A pair of substantially parallel plates are positioned within said housing, one of the plates having a plurality of perforations therethrough extending from facing front sides of that plate to back side of that plate. The housing is openable to receive the porous pouch between the facing front sides of the plates. A nozzle provides a communication path between the pouch and a source of microporous powder. A vacuum source communicates with an interior of the housing and the back side of the plate with perforations through a vacuum shroud. Preferably, a heat sealing device is positioned within the housing for sealing an edge of the pouch after filling with microporous powder.
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Cur Nihat O.
Higazy Mohamed E.
Immoos Martin P.
Kruck Richard W.
Coan James F.
Krefman Stephen D.
Rice Robert O.
Roth Thomas J.
Whirlpool Corporation
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