| 发明名称 |
CONTROL ARRANGEMENT FOR A DAMPER |
| 摘要 |
<p>A damper control arrangement wherein a damper blade opens and closes a flow-through orifice in response to selective moving means, the selective moving means moving the damper blade a preselected distance from the orifice opening to vary the opening of the orifice for a predetermined period of time prior to moving the damper blade to a fully open position. .</p> |
| 申请公布号 |
CA1067478(A) |
申请公布日期 |
1979.12.04 |
| 申请号 |
CA19770279095 |
申请日期 |
1977.05.25 |
| 申请人 |
AMERICAN AIR FILTER COMPANY, INC. |
发明人 |
JOHNSON, GILBERT H. |
| 分类号 |
F16K31/06;F15B21/08;(IPC1-7):16K31/00 |
主分类号 |
F16K31/06 |
| 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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