GB1152371A - Closure Means for Ventilation Shafts - Google Patents

Closure Means for Ventilation Shafts

Info

Publication number
GB1152371A
GB1152371A GB2481366A GB2481366A GB1152371A GB 1152371 A GB1152371 A GB 1152371A GB 2481366 A GB2481366 A GB 2481366A GB 2481366 A GB2481366 A GB 2481366A GB 1152371 A GB1152371 A GB 1152371A
Authority
GB
United Kingdom
Prior art keywords
piston
valve
open position
blast
closure means
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
GB2481366A
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.)
Bochumer Eisenhuette Heintzmann GmbH and Co KG
Original Assignee
Bochumer Eisenhuette Heintzmann GmbH and Co KG
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 Eisenhuette Heintzmann GmbH and Co KG filed Critical Bochumer Eisenhuette Heintzmann GmbH and Co KG
Publication of GB1152371A publication Critical patent/GB1152371A/en
Expired legal-status Critical Current

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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/006—Safety valves; Equalising valves, e.g. pressure relief valves specially adapted for shelters

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Mechanical Engineering (AREA)
  • Air-Flow Control Members (AREA)
  • Fluid-Driven Valves (AREA)

Abstract

1,152,371. Valves. BOCHUMER EISENHœTTE HEINTZMANN & CO. 3 June, 1966 [5 July, 1965], No. 24813/66. Heading F2V. [Also in Division F4] A valve member 4 for the ventilating shaft of a blast shelter is carried by a piston 7 in a cylinder 6, the piston being raised to its valve open position by a second piston (13, Fig. 3, not shown). A rod carried by the piston 7 trips electrical contacts if the piston moves downwardly due to air leakage and the second piston is thereby actuated to raise the piston and valve to the fully open position. To prevent the valve being immediately reopened when closed by the effect of a blast, a time delay is included in the electrical control circuit. The member 4 in the form of a shallow dished cover-plate seats on a seal 3a.
GB2481366A 1965-07-05 1966-06-03 Closure Means for Ventilation Shafts Expired GB1152371A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB82685A DE1262780B (en) 1965-07-05 1965-07-05 Closure device for ventilation ducts of protective structures

Publications (1)

Publication Number Publication Date
GB1152371A true GB1152371A (en) 1969-05-14

Family

ID=6981608

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2481366A Expired GB1152371A (en) 1965-07-05 1966-06-03 Closure Means for Ventilation Shafts

Country Status (5)

Country Link
AT (1) AT281366B (en)
CH (1) CH455527A (en)
DE (1) DE1262780B (en)
GB (1) GB1152371A (en)
SE (1) SE322417B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE163467T1 (en) * 1994-04-21 1998-03-15 Andair Ag PROTECTIVE DEVICE AGAINST COMPRESSED AIR SHOCKS

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
AT281366B (en) 1970-05-25
SE322417B (en) 1970-04-06
CH455527A (en) 1968-07-15
DE1262780B (en) 1968-03-07

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees