发明名称 |
Automatic assist for swing-door operator |
摘要 |
A manual power assist control employs a magnetic encoder which is mounted to a shaft of the door operator. The encoder generates pulse trains which are indicative of an attempt to open the door in a given direction. The pulses are processed to generate a signal for opening the doors in the event a manual attempt to open the doors is detected.
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申请公布号 |
US4952080(A) |
申请公布日期 |
1990.08.28 |
申请号 |
US19890351093 |
申请日期 |
1989.05.12 |
申请人 |
THE STANLEY WORKS |
发明人 |
BOIUCANER, LEON;SCOTT, JAMES J. |
分类号 |
E05F15/12;E05F15/20;G05B19/23 |
主分类号 |
E05F15/12 |
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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