JPH0328252Y2 - - Google Patents
Info
- Publication number
- JPH0328252Y2 JPH0328252Y2 JP12664485U JP12664485U JPH0328252Y2 JP H0328252 Y2 JPH0328252 Y2 JP H0328252Y2 JP 12664485 U JP12664485 U JP 12664485U JP 12664485 U JP12664485 U JP 12664485U JP H0328252 Y2 JPH0328252 Y2 JP H0328252Y2
- Authority
- JP
- Japan
- Prior art keywords
- damper
- dampers
- fixed
- frame
- ventilation passage
- 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
- 238000009423 ventilation Methods 0.000 claims description 24
- 239000006023 eutectic alloy Substances 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
Landscapes
- Air-Flow Control Members (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12664485U JPH0328252Y2 (en]) | 1985-08-20 | 1985-08-20 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12664485U JPH0328252Y2 (en]) | 1985-08-20 | 1985-08-20 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6236357U JPS6236357U (en]) | 1987-03-04 |
JPH0328252Y2 true JPH0328252Y2 (en]) | 1991-06-18 |
Family
ID=31020644
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12664485U Expired JPH0328252Y2 (en]) | 1985-08-20 | 1985-08-20 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0328252Y2 (en]) |
-
1985
- 1985-08-20 JP JP12664485U patent/JPH0328252Y2/ja not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS6236357U (en]) | 1987-03-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US5533929A (en) | Remotely trippable and resettable damper | |
US4146048A (en) | Fire damper and method of fabrication | |
US5810662A (en) | Compact smoke and fire damper with over center latch | |
USRE32362E (en) | Fire damper and method of fabrication | |
CN110735951B (zh) | 防火止回阀 | |
US3260018A (en) | Door closing mechanism | |
US6019679A (en) | Fire and smoke damper | |
US5730653A (en) | Compact damper with over center latch | |
JPH0328252Y2 (en]) | ||
US2242738A (en) | Damper device | |
US3650069A (en) | Fire damper blade latch | |
CN211202993U (zh) | 单弹簧防火止回阀 | |
JP3736233B2 (ja) | 防火ダンパー装置 | |
JPS6222952A (ja) | 防火ダンパ− | |
JPS6346341A (ja) | 防火ダンパ− | |
JPS61295455A (ja) | 防火ダンパ− | |
CN217207934U (zh) | 一种烟道防火止回阀 | |
JPS623640Y2 (en]) | ||
KR20210136548A (ko) | 방화 댐퍼 | |
JPS6041246Y2 (ja) | 排煙防火ダンパ− | |
JPH0614769Y2 (ja) | ダンパー装置 | |
CN216813003U (zh) | 一种具有高强度耐火性的新型防火阀 | |
JPS5848262U (ja) | 防火ダンパ開閉装置 | |
JPH0449357Y2 (en]) | ||
JPH0240995Y2 (en]) |