Invention Grant
- Patent Title: Freeze drying method
- Patent Title (中): 冷冻干燥方法
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Application No.: US12929525Application Date: 2011-01-31
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Publication No.: US08434240B2Publication Date: 2013-05-07
- Inventor: Taylor N. Thompson, Jr. , Weijia Ling
- Applicant: Taylor N. Thompson, Jr. , Weijia Ling
- Applicant Address: US NY Kingston
- Assignee: Millrock Technology, Inc.
- Current Assignee: Millrock Technology, Inc.
- Current Assignee Address: US NY Kingston
- Agency: Nixon & Vanderhye PC
- Main IPC: F26B5/06
- IPC: F26B5/06 ; F26B13/30

Abstract:
A method of controlling the primary drying stage in a freeze drying apparatus having a shelf and bulk product or a number of vials in different areas on the shelf which contain product to be freeze dried. Temperature sensors are positioned in selected locations or vials which are representative of the different bulk product areas or the positions of all of the vials in different areas of the shelf. The temperature sensors are monitored and compared to determine the selected location or vial having the highest temperature while the temperature sensor therein is still in ice. The shelf temperature is controlled based on the selected location or vial with the highest temperature so long as the temperature sensor therein is still in ice. When the temperature sensor in the highest temperature selected location or vial is no longer in ice, another selected location or vial with the highest temperature and a temperature sensor therein that is still in ice is then used to control the shelf temperature.
Public/Granted literature
- US20120192447A1 Freeze drying method Public/Granted day:2012-08-02
Information query
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