Patent ID: 6941676
Filing Date: 2005-09-13
Classification: F26B

Abstract:
1. Freeze-drying apparatus for foodstuffs and medicaments, which comprises: a main body part constructed by assembling an upright cylindrical tube for freezing liquid material feed to be dried, onto an inner wall surface of said cylindrical tube; and a jacket provided on and around the outer periphery of said tube in a substantially concentric cylindrical shape to permit a heat medium to circulate in the jacket around said outer periphery of said cylindrical tube, wherein said heat medium does not enter said tube, a duct communicating to a vacuum exhaust system, which is connected to the upper end side of said tube of said main body part, either directly or through a chamber, an inlet port for introducing said liquid material feed to be dried onto the inner cavity of said tube, said inlet port being connected to a downstream side of a tube passageway for feeding said liquid material, within said duct or said chamber, and above said tube; and an extended wall projecting above a liquid surface of said heat medium is disposed on the upper end side of the cylindrical wall of said tube, to enable said liquid material ejected from said inlet port onto the inner surface of said extended wall to eject from said inlet port against the inner surface of said extended wall.