GB981638A - Apparatus for freeze drying - Google Patents

Apparatus for freeze drying

Info

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
Application number
GB3867962A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Leybold Hochvakuum Anlagen GmbH
Original Assignee
Leybold Hochvakuum Anlagen GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Leybold Hochvakuum Anlagen GmbH filed Critical Leybold Hochvakuum Anlagen GmbH
Publication of GB981638A publication Critical patent/GB981638A/en
Expired legal-status Critical Current

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.
GB3867962A 1961-10-12 1962-10-12 Apparatus for freeze drying Expired GB981638A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Cited By (2)

* Cited by examiner, † Cited by third party
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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