Drying and gas or vapor contact with solids – Apparatus – Gravity flow type
Reexamination Certificate
2005-09-13
2005-09-13
Bennett, Henry (Department: 3743)
Drying and gas or vapor contact with solids
Apparatus
Gravity flow type
C034S285000, C034S296000, C034S576000, C034S179000, C034S180000, C034S092000
Reexamination Certificate
active
06941676
ABSTRACT:
Disclosed is a freeze-drying apparatus for foodstuffs, medicaments, etc., wherein liquid material is directly and distributively poured into upright cylindrical tubes, then, in its isolated state from external atmosphere for perfect sterilization, the liquid material is frozen with uniform thickness onto inner wall surface of the tubes, with further possibility of uniform heating of the freeze-dried layer. The main body of this apparatus is constructed with upright cylindrical tubes for freezing liquid material onto inner surface of tubes and jackets to surround the outer periphery of each of the tubes in a substantially concentric cylindrical shape, within which to circulate heat medium; then, a duct communicating to the vacuum exhaust system is connected to the upper end side of these tubes, while, a recovery chamber provided with valve is connected to the lower end side of tubes; and an inlet port is defined for feeding liquid material into inner cavity of tubes.
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Akimoto Hiromichi
Sunama Ryoji
Bennett Henry
Browdy and Neimark , P.L.L.C.
Kyowa Vacuum Engineering Co. Ltd.
Ragonese Andrea M.
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