JPH0531478Y2 - - Google Patents
Info
- Publication number
- JPH0531478Y2 JPH0531478Y2 JP4429987U JP4429987U JPH0531478Y2 JP H0531478 Y2 JPH0531478 Y2 JP H0531478Y2 JP 4429987 U JP4429987 U JP 4429987U JP 4429987 U JP4429987 U JP 4429987U JP H0531478 Y2 JPH0531478 Y2 JP H0531478Y2
- Authority
- JP
- Japan
- Prior art keywords
- damper
- duct
- pressure
- damper device
- fire
- 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 - Lifetime
Links
- 230000002265 prevention Effects 0.000 claims description 11
- 230000006378 damage Effects 0.000 claims description 10
- 230000000149 penetrating effect Effects 0.000 claims 1
- 230000006835 compression Effects 0.000 description 8
- 238000007906 compression Methods 0.000 description 8
- 238000004891 communication Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 230000007246 mechanism Effects 0.000 description 4
- 238000004378 air conditioning Methods 0.000 description 3
- 238000012856 packing Methods 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000007257 malfunction Effects 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Landscapes
- Air-Flow Control Members (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4429987U JPH0531478Y2 (en]) | 1987-03-27 | 1987-03-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4429987U JPH0531478Y2 (en]) | 1987-03-27 | 1987-03-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63153052U JPS63153052U (en]) | 1988-10-07 |
| JPH0531478Y2 true JPH0531478Y2 (en]) | 1993-08-12 |
Family
ID=30861977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4429987U Expired - Lifetime JPH0531478Y2 (en]) | 1987-03-27 | 1987-03-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0531478Y2 (en]) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3830019B2 (ja) * | 2000-10-27 | 2006-10-04 | 株式会社日立プラントテクノロジー | 陽圧・陰圧対応差圧調整ダンパ |
| JP2014092802A (ja) * | 2012-10-31 | 2014-05-19 | Ntt Facilities Inc | 電算機室空調システム |
-
1987
- 1987-03-27 JP JP4429987U patent/JPH0531478Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63153052U (en]) | 1988-10-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6149698A (en) | Apparatus for installing a ventilation fan | |
| US5810662A (en) | Compact smoke and fire damper with over center latch | |
| GB2182768A (en) | Ventilator for a refrigerator | |
| JPH0531478Y2 (en]) | ||
| CN112096254A (zh) | 适用于消防通道的助力防火门 | |
| US7275560B2 (en) | Pressure relief door for air duct work | |
| CN113137124A (zh) | 执手锁定机构及执手 | |
| US5749175A (en) | Structure of mating portions of double door assembly | |
| JPH0328642A (ja) | 気密室の内圧調整装置 | |
| SU1370385A1 (ru) | Устройство дл перекрыти проема выт жной шахты | |
| JP2003120141A (ja) | 防火扉 | |
| KR102036364B1 (ko) | 양압 장치용 릴리프 밸브 | |
| CN216923224U (zh) | 一种防火阀的阀门密闭结构 | |
| JPH058385Y2 (en]) | ||
| JPS624816Y2 (en]) | ||
| JP2020143567A (ja) | ドア装置 | |
| JPH11118236A (ja) | 建造物用換気装置 | |
| CN219993531U (zh) | 一种新型气膜人员通道室泄气装置 | |
| JPS596193Y2 (ja) | 差圧ダンパ− | |
| EP4286643B1 (en) | Vent for a window frame | |
| CN219197031U (zh) | 一种门窗用铰链 | |
| JPS6130107Y2 (en]) | ||
| JP3102225B2 (ja) | 圧力調整ダンパ | |
| KR102381926B1 (ko) | 방음문용 밀폐창 | |
| JPH0512466Y2 (en]) |