AT257882B - Closure device for ventilation ducts in particular underground protective structures, such as bunkers, air shelters or the like. - Google Patents

Closure device for ventilation ducts in particular underground protective structures, such as bunkers, air shelters or the like.

Info

Publication number
AT257882B
AT257882B AT389866A AT389866A AT257882B AT 257882 B AT257882 B AT 257882B AT 389866 A AT389866 A AT 389866A AT 389866 A AT389866 A AT 389866A AT 257882 B AT257882 B AT 257882B
Authority
AT
Austria
Prior art keywords
bunkers
closure device
ventilation ducts
protective structures
particular underground
Prior art date
Application number
AT389866A
Other languages
German (de)
Original Assignee
Bochumer Eisen Heintzmann
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 Bochumer Eisen Heintzmann filed Critical Bochumer Eisen Heintzmann
Application granted granted Critical
Publication of AT257882B publication Critical patent/AT257882B/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B13/00—Special devices for ventilating gasproof shelters

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Measurement Of Radiation (AREA)
  • Air-Flow Control Members (AREA)
AT389866A 1965-07-05 1966-04-25 Closure device for ventilation ducts in particular underground protective structures, such as bunkers, air shelters or the like. AT257882B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB82684A DE1257019B (en) 1965-07-05 1965-07-05 Closure device for ventilation ducts of protective structures

Publications (1)

Publication Number Publication Date
AT257882B true AT257882B (en) 1967-10-25

Family

ID=6981607

Family Applications (1)

Application Number Title Priority Date Filing Date
AT389866A AT257882B (en) 1965-07-05 1966-04-25 Closure device for ventilation ducts in particular underground protective structures, such as bunkers, air shelters or the like.

Country Status (5)

Country Link
AT (1) AT257882B (en)
CH (1) CH448758A (en)
DE (1) DE1257019B (en)
GB (1) GB1152581A (en)
SE (1) SE321618B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3134019C2 (en) * 1981-08-28 1984-05-30 Brown Boveri Reaktor GmbH, 6800 Mannheim Device for mixing the atmosphere enclosed in the rooms arranged within a containment of a nuclear reactor plant
CN118808836B (en) * 2024-08-14 2025-01-17 中铁六局集团有限公司 Welding process for pipeline in closed air shaft

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3064552A (en) * 1960-01-08 1962-11-20 American Mach & Foundry Blast actuated closures
GB945782A (en) * 1961-07-03 1964-01-08 Margot Von Linsingen Self-closing cover plate for air shafts or emergency exits of shelters, particularlyunderground shelters

Also Published As

Publication number Publication date
GB1152581A (en) 1969-05-21
CH448758A (en) 1967-12-15
SE321618B (en) 1970-03-09
DE1257019B (en) 1967-12-21

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