发明名称 |
Sliding fire protection door - is released by electromagnetic lock and slides under action of counterweight |
摘要 |
The sliding fire protection door has an electromagnetic release lock, and a counterweight connected to the door by a pulley. The magnetic lock is connected into the fire detection circuits of the building and is released in case of fire. The door closes under the counterweight. The release lock is designed to operate if there is any failure in the electrical supply. |
申请公布号 |
FR2337559(A1) |
申请公布日期 |
1977.08.05 |
申请号 |
FR19770000947 |
申请日期 |
1977.01.07 |
申请人 |
DEUTSCHE METALLTUREN WERKE SCHWA |
发明人 |
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分类号 |
E05F1/02;E05F15/14;E05F15/20 |
主分类号 |
E05F1/02 |
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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