| 发明名称 |
Time delay fire closure releasing device |
| 摘要 |
A time delayed releasing device serves to hold fire closures from being actuated during periodic testing and momentary power failure while still permitting the closure to respond to power outage of more than a momentary nature or to the presence of heat.
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| 申请公布号 |
US4130156(A) |
申请公布日期 |
1978.12.19 |
| 申请号 |
US19780890534 |
申请日期 |
1978.03.27 |
| 申请人 |
THE COOKSON COMPANY |
发明人 |
WARDLAW, RUSSELL |
| 分类号 |
A62C2/24;(IPC1-7):E05F15/20 |
主分类号 |
A62C2/24 |
| 代理机构 |
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代理人 |
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| 主权项 |
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| 地址 |
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