发明名称 |
Means controlling a flue damper |
摘要 |
A flue damper is rotated 360 DEG in a predetermined direction in 90 DEG increments to be selectively opened and closed in 90 DEG increments. The incremental rotation is accomplished by a motor driven timing mechanism with power to the motor being controlled by the timing mechanism and a single pole double throw relay.
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申请公布号 |
US4550874(A) |
申请公布日期 |
1985.11.05 |
申请号 |
US19840580797 |
申请日期 |
1984.02.16 |
申请人 |
EMHART INDUSTRIES, INC. |
发明人 |
CLOUSER, MICHAEL T.;COULTER, ROBERT S. |
分类号 |
F23N3/08;(IPC1-7):F23N3/00 |
主分类号 |
F23N3/08 |
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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