GB1173720A - Arrangement for Freeze Drying. - Google Patents
Arrangement for Freeze Drying.Info
- Publication number
- GB1173720A GB1173720A GB2030568A GB2030568A GB1173720A GB 1173720 A GB1173720 A GB 1173720A GB 2030568 A GB2030568 A GB 2030568A GB 2030568 A GB2030568 A GB 2030568A GB 1173720 A GB1173720 A GB 1173720A
- Authority
- GB
- United Kingdom
- Prior art keywords
- substance
- enclosure
- wax
- cover
- dried
- 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
1,173,720. Freeze drying. LEYBOLD-HERAEUS-VERWALTUNG G.m.b.H. 29 April, 1968 [18 May, 1967], No. 20305/68. Heading F4G. In an apparatus for freeze drying small quantities of substances, e.g. tissues for histological or histochemical purposes, the substance when in the freeze drying chamber, is shielded from environmental thermal radiation by a cover which contacts a heat absorbing plate of a refrigerating device, to form an enclosure for the substance, the enclosure being open to the chamber. In the embodiment shown the apparatus comprises an evacuable chamber 1 and a refrigerating and heating device 4 comprising two thermo-electric modules 41; 42 operable by the Peltier effect. The cover 7 with the upper plate of module 41 forms an enclosure for the vessel 6 supported by module 42 and containing the substance and wax into which the dried substance is to be embedded. The enclosure is open at its ends. The cover 7 is preferably made of good heat conducting material. When the frozen substance is being dried the device 4 is absorbing heat to maintain the necessary low temperature. After the substance is dried the device 4 switches over to supply heat to melt the wax and embed the dried substance. The cover 7 accelerates the melting of the wax due to it radiating heat on to the wax.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEL0056541 | 1967-05-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1173720A true GB1173720A (en) | 1969-12-10 |
Family
ID=7277849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2030568A Expired GB1173720A (en) | 1967-05-18 | 1968-04-29 | Arrangement for Freeze Drying. |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR1569214A (en) |
| GB (1) | GB1173720A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009030341A1 (en) * | 2007-08-28 | 2009-03-12 | Arzneimittel Gmbh Apotheker Vetter & Co. Ravensburg | Device for controlling the temperature of products to be frozen |
| CN101936642A (en) * | 2010-09-08 | 2011-01-05 | 青岛大学 | Semiconductor refrigeration vacuum freezing dryer capable of realizing energy recovery |
-
1968
- 1968-04-29 GB GB2030568A patent/GB1173720A/en not_active Expired
- 1968-06-07 FR FR1569214D patent/FR1569214A/fr not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009030341A1 (en) * | 2007-08-28 | 2009-03-12 | Arzneimittel Gmbh Apotheker Vetter & Co. Ravensburg | Device for controlling the temperature of products to be frozen |
| US9642386B2 (en) | 2007-08-28 | 2017-05-09 | Arzneimittel Gmbh Apotheker Vetter & Co. Ravensburg | Device for controlling the temperature of products to be frozen |
| US10368566B2 (en) | 2007-08-28 | 2019-08-06 | Arzneimittel Gmbh Apotheker Vetter & Co. Ravensburg | Device for controlling the temperature of products to be frozen |
| CN101936642A (en) * | 2010-09-08 | 2011-01-05 | 青岛大学 | Semiconductor refrigeration vacuum freezing dryer capable of realizing energy recovery |
| CN101936642B (en) * | 2010-09-08 | 2012-03-07 | 青岛大学 | Semiconductor refrigeration vacuum freezing dryer capable of realizing energy recovery |
Also Published As
| Publication number | Publication date |
|---|---|
| FR1569214A (en) | 1969-05-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |