Freeze-drying apparatus
First Claim
1. Freeze drying apparatus comprisinga freeze drying chamber,a condensation chamber,a support plate in the form of a common wall separating said freeze drying chamber from said condensation chamber, said plate having at least one port therein,a disc mounted against said plate and having an axis of rotation so that said disc can be rotated relative to said plate, said disc having a hole which can be aligned with a respective said at least one port by rotation about said axis, andmagnetic means for transmitting forces to effect rotation of said disc relative to said plate.
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Accused Products
Abstract
An intermediate support plate (4) is located between the freeze-drying chamber and the condensation chamber and is equipped with a closeable port; in order to be able to properly adjust the orifice of the port it is formed by two discs (15, 18) that can be rotated relative to each other around a central axis of rotation. Each disc carries circular holes (21, 22) at a radial distance away from the axis of rotation and these holes are so located and designed that by rotating the discs a position of complete axial overlap, one of zero axial overlap and any position in between can be achieved.
16 Citations
7 Claims
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1. Freeze drying apparatus comprising
a freeze drying chamber, a condensation chamber, a support plate in the form of a common wall separating said freeze drying chamber from said condensation chamber, said plate having at least one port therein, a disc mounted against said plate and having an axis of rotation so that said disc can be rotated relative to said plate, said disc having a hole which can be aligned with a respective said at least one port by rotation about said axis, and magnetic means for transmitting forces to effect rotation of said disc relative to said plate.
Specification