Heated shelf apparatus and freeze dry cart using same
First Claim
Patent Images
1. A freeze-drying system comprising:
- a vented cart configured for operation in a pressure controlled chamber of the freeze-drying system; and
a plurality of heated shelves disposed in the vented cart, at least one heated shelf of the plurality of heated shelves including;
a first planar sheet formed from a thermally conductive material and having a top configured to conduct heat to a tray when the tray is resting on the first planar sheet;
a second planar sheet disposed opposite the first planar sheet;
a heating element secured between the first planar sheet and the second planar sheet, the heating element having a surface disposed in thermally conductive contact with the first planar sheet; and
wherein the plurality of heated shelves are configured for control by a temperature controller of the freeze-drying system.
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Abstract
A freeze-drying system is disclosed which includes a vented cart configured for operation in a pressure-controlled chamber, and a plurality of heated shelves disposed in the vented cart. At least one heated shelf of the plurality of heated shelves is provided. The heated shelf includes a first planar sheet formed from a thermally conductive material having a top configured to conduct heat to a tray resting on the top, a second planar sheet disposed opposite the first planar sheet, and a heating element secured between the first and second planar sheets. The heating element has a surface disposed in thermally conductive contact with the first planar sheet.
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Citations
10 Claims
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1. A freeze-drying system comprising:
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a vented cart configured for operation in a pressure controlled chamber of the freeze-drying system; and a plurality of heated shelves disposed in the vented cart, at least one heated shelf of the plurality of heated shelves including; a first planar sheet formed from a thermally conductive material and having a top configured to conduct heat to a tray when the tray is resting on the first planar sheet; a second planar sheet disposed opposite the first planar sheet; a heating element secured between the first planar sheet and the second planar sheet, the heating element having a surface disposed in thermally conductive contact with the first planar sheet; and wherein the plurality of heated shelves are configured for control by a temperature controller of the freeze-drying system. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification