GB1152581A - Closure Means for Ventilation Shafts. - Google Patents
Closure Means for Ventilation Shafts.Info
- Publication number
- GB1152581A GB1152581A GB2332566A GB2332566A GB1152581A GB 1152581 A GB1152581 A GB 1152581A GB 2332566 A GB2332566 A GB 2332566A GB 2332566 A GB2332566 A GB 2332566A GB 1152581 A GB1152581 A GB 1152581A
- Authority
- GB
- United Kingdom
- Prior art keywords
- closure
- pressure
- pipe
- piston
- reservoir
- 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
-
- 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)
- Air-Flow Control Members (AREA)
- Measurement Of Radiation (AREA)
Abstract
1,152,581. Ventilating valves. BOCHUMER EISENHœTTE HEINTZMANN & CO. 25 May, 1966 [5 July, 1965], No. 23325/66. Heading F4V. [Also in Division G3] A closure for ventilation shafts automatically closable upon sudden changes in the ambient atmosphere comprises a double acting piston 7 carrying the closure, the pressure applied to the upper side of the piston through a pipe 8 exceeding the pressure supplied through a pipe 9 which normally maintains the closure in its open position. This difference in pressure ensures rapid closing when pipe 9 is open to exhaust. Sensing means 27 may be responsive to pressure, temperature, radiation intensity, or may be a Geiger counter, and controls two electromagnetic valves 17, 19 controlling the flow in pipes 9, 8 respectively from reservoirs 18, 20 to the cylinder 6. Reservoir 18 is at a lower pressure than reservoir 20. The cylinder 6 is appreciably longer than the stroke of piston 7 necessary to close the closure. The closure may be arranged in a horizontal shaft (Fig. 2) and a fan (2, Fig. 1) may be provided. The closure (4, Fig. 1) seats on sealing means (3a, Fig. 1).
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 |
|---|---|
| GB1152581A true GB1152581A (en) | 1969-05-21 |
Family
ID=6981607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2332566A Expired GB1152581A (en) | 1965-07-05 | 1966-05-25 | Closure Means for Ventilation Shafts. |
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) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0073403A2 (en) * | 1981-08-28 | 1983-03-09 | BROWN BOVERI REAKTOR GmbH | Device for blending the atmosphere enclosed in the spaces arranged in the interior of the safety container of a nuclear reactor |
Family Cites Families (2)
| 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 |
-
1965
- 1965-07-05 DE DEB82684A patent/DE1257019B/en active Pending
-
1966
- 1966-04-25 AT AT389866A patent/AT257882B/en active
- 1966-05-02 SE SE599066A patent/SE321618B/xx unknown
- 1966-05-25 CH CH752666A patent/CH448758A/en unknown
- 1966-05-25 GB GB2332566A patent/GB1152581A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0073403A2 (en) * | 1981-08-28 | 1983-03-09 | BROWN BOVERI REAKTOR GmbH | Device for blending the atmosphere enclosed in the spaces arranged in the interior of the safety container of a nuclear reactor |
| EP0073403A3 (en) * | 1981-08-28 | 1983-04-27 | Brown Boveri Reaktor Gmbh | Device for blending the atmosphere enclosed in the spaces arranged in the interior of the safety container of a nuclear reactor |
Also Published As
| Publication number | Publication date |
|---|---|
| SE321618B (en) | 1970-03-09 |
| AT257882B (en) | 1967-10-25 |
| CH448758A (en) | 1967-12-15 |
| DE1257019B (en) | 1967-12-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |