发明名称 |
Smoke or fire barrier |
摘要 |
An alarm system for a smoke or fire barrier, including alarm circuits have a normally closed switch position. A control circuit connected to the alarm circuits applies a voltage to create a non-activation situation or remove a voltage to create an activation situation when the switch is open. The alarm circuit further including either a series connected resistance or a normally open switch position in parallel to the normally closed switch position, to create a "fault" condition in the absence of detection of the resistance, or an open switch position and a closed switch position. |
申请公布号 |
EP2495018(A2) |
申请公布日期 |
2012.09.05 |
申请号 |
EP20120001270 |
申请日期 |
2012.02.27 |
申请人 |
COOPERS FIRE LIMITED |
发明人 |
COOPER, ANDREW, PAUL;FORD, VICTORIA, LOUISE;SHAW, PHILIP |
分类号 |
A62C2/10;A62C2/24;G01R31/02;G08B17/00 |
主分类号 |
A62C2/10 |
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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