Method of bulk washing and drying of discrete components
AssigneeU.S. Philips Corporation
InventorPeter J.E. Schelwald
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Abstract
A method of washing and drying of discrete components in bulk, wherein the components are washed with a cleaning liquid and the wet components are dried in a freeze-drying process by bringing the wet components to a temperature below the melting point of the cleaning liquid, so that the cleaning liquid becomes a solid substance, and by evaporating the solid substance through introduction of the components and the solid substance into a space having a pressure lower than the vapour pressure of the solid substance.
Claims7
A method of bulk washing and drying of discrete components, characterized in that the components are washed with a cleaning liquid to produce wet components, the cleaning liquid having a melting point, and the wet components are dried in a freeze-drying process in that the wet components are brought to a temperature below the melting point of the cleaning liquid, so that the cleaning liquid becomes a solid substance, the solid substance having a vapour pressure, and in that the solid substance is evaporated through introduction of the components and the solid substance into a space having a pressure lower than the vapour pressure of the solid substance.
Dependencies are inferred from the claim text.