GB981638A - Apparatus for freeze drying - Google Patents
Apparatus for freeze dryingInfo
- Publication number
- GB981638A GB981638A GB3867962A GB3867962A GB981638A GB 981638 A GB981638 A GB 981638A GB 3867962 A GB3867962 A GB 3867962A GB 3867962 A GB3867962 A GB 3867962A GB 981638 A GB981638 A GB 981638A
- Authority
- GB
- United Kingdom
- Prior art keywords
- compartment
- walls
- vapour
- freeze drying
- oct
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B5/00—Drying solid materials or objects by processes not involving the application of heat
- F26B5/04—Drying solid materials or objects by processes not involving the application of heat by evaporation or sublimation of moisture under reduced pressure, e.g. in a vacuum
- F26B5/06—Drying solid materials or objects by processes not involving the application of heat by evaporation or sublimation of moisture under reduced pressure, e.g. in a vacuum the process involving freezing
Landscapes
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Molecular Biology (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Drying Of Solid Materials (AREA)
Abstract
981,638. Freeze drying. LEYBOLDANLAGEN A.G. Oct. 12, 1962 [Oct. 12, 1961], No. 38679/62. Heading F4G. A freeze drying apparatus comprises a receptacle 1 of a high thermal conductivity material, e.g. aluminium, in the form of a deep-walled tray having a common floor 18 and internal partitions 12, 13 formed integral therewith such that the ratio of height to width of each compartment is between 2 and 5 to 1. As a result the material to be dried, which may be prefrozen or suitably pre-formed, e.g. bar 21, may rest against or face a wall of the compartment to provide for a free escape of vapour into the surrounding drying chamber (not shown), from the upper open end of the compartment from a vapour escape gap 32 between the material and partition 12. In various modifications the rectangular in cross-section compartments may be of trapezoidal or triangular cross-section or have ridges 40, 41, 42 to form vapour escape gaps between the material and the walls and floor, or a coarsely granular bulk material 50 may be dried. In further embodiments, the end walls of the receptacles may be slidable and/or removable, or the upper ends of the walls and partitions may have flanges or strip elements to constrict the upper open ends of the compartments.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEL40212A DE1135831B (en) | 1961-10-12 | 1961-10-12 | Freeze-drying device |
Publications (1)
Publication Number | Publication Date |
---|---|
GB981638A true GB981638A (en) | 1965-01-27 |
Family
ID=7268967
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3867962A Expired GB981638A (en) | 1961-10-12 | 1962-10-12 | Apparatus for freeze drying |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE1135831B (en) |
GB (1) | GB981638A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3391466A (en) * | 1965-09-24 | 1968-07-09 | Unilever Nv | Freeze-drying |
US4603492A (en) * | 1984-04-12 | 1986-08-05 | Hag Gf Aktiengesellschaft | Insert container for freeze-drying plants |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1229460B (en) * | 1963-09-28 | 1966-11-24 | Leybold Hochvakuum Anlagen | Well container group for freeze-drying chambers |
DE1285954B (en) * | 1966-03-08 | 1968-12-19 | Leybold Heraeus Gmbh & Co Kg | Insert vessel for freeze-drying systems |
DE1729242B1 (en) * | 1966-03-08 | 1972-03-09 | Leybold Heraeus Gmbh & Co Kg | Shell-shaped container for freeze-drying systems |
DE1729236B1 (en) * | 1967-03-21 | 1971-11-18 | Leybold Heraeus Gmbh & Co Kg | Insert vessel for freeze-drying systems |
CH459071A (en) * | 1967-03-21 | 1968-06-30 | Leybold Heraeus Verwaltung | Insert vessel for freeze-drying systems |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1023411B (en) * | 1953-07-31 | 1958-01-23 | Louis Marie Antoine Rieutord | Method and device for determining the end of drying in freeze-drying |
-
1961
- 1961-10-12 DE DEL40212A patent/DE1135831B/en active Pending
-
1962
- 1962-10-12 GB GB3867962A patent/GB981638A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3391466A (en) * | 1965-09-24 | 1968-07-09 | Unilever Nv | Freeze-drying |
US4603492A (en) * | 1984-04-12 | 1986-08-05 | Hag Gf Aktiengesellschaft | Insert container for freeze-drying plants |
Also Published As
Publication number | Publication date |
---|---|
DE1135831B (en) | 1962-08-30 |
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