Freeze drying apparatus

• US 3,286,365 A
• Filed: 04/03/1964
• Issued: 11/22/1966
• Est. Priority Date: 04/06/1963
• Status: Expired due to Term

• Current Assignee: Ulrich Hackenberg
• Original Assignee: Ulrich Hackenberg
• Inventors: ULRICH HACKENBERG
• Application Number:
  US04/357,322
• Time in Patent Office: 963 Days
• US Class Current: 34/92
• CPC Class Codes: A23B 7/024 Freeze-drying , i.e. cryodessication or lyophilisation
• CPC Class Codes: A23L 2/14 and sublimation
• CPC Class Codes: A23L 3/44 Freeze-drying
• CPC Class Codes: F26B 5/06 the process involving freezing

Claims

1. AN APPARATUS FOR THE FREEZE DRYING OF MOISTURE CONTAINING MATERIAL COMPRISNG A VACUUM CHAMBER, HEATING MEANS POSITIONED WITHIN SAID VACUUM CHAMBER, HOUSING MEANS POSITIONED WITHIN SAID VACUUM CHAMBER ADJACENT SAID HEATING MEANS, A PLURALITY OF MEANS ADATPED TO BE FILLED WITH A MATERIAL TO BE FREEZE DRIED, SAID CONTAINER MEANS BEING REMOVABLY POSITIONED WITHIN SAID HOUSING MEANS AND HAVING AN OPENING TO PERMIT THE ESCAPE OF WATER VAPOR THEREFROM, SAID HOUSING ADAPTED TO COMPLETELY SHIELD THE MATERIAL CONTAINED IN SAID CONTAINER MEANS FROM DIRECT HEAT RADIATION FROM SAID HEATING MEANS, AND WHEREIN SAID HOUSING MEANS CONTAINS AN OPENING WHICH PERMITS ESCAPE OF WATER VAPOR FROM THE MATERIAL CONTAINED IN SAID CONTAINER MEANS.