发明名称 |
Automatic door opener |
摘要 |
A door opener includes a motor in mechanical communication with a door, a first gas source for powering the motor, and a control system interposed to the first gas source and the motor. The control system includes a first pilot valve communicating with the first gas source at an inlet port and the motor at a motor port. The first pilot valve also communicates with a first flow control valve at an exhaust port. The first flow control valve regulates the speed of the door during closing and communicates with the first pilot valve at an inlet port and communicates with the atmosphere at an exhaust port.
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申请公布号 |
US5937579(A) |
申请公布日期 |
1999.08.17 |
申请号 |
US19970838165 |
申请日期 |
1997.04.16 |
申请人 |
BACZEWSKI, GARY L.;AGUILAR, DENNIS |
发明人 |
BACZEWSKI, GARY L.;AGUILAR, DENNIS |
分类号 |
E05F15/00;E05F15/08;(IPC1-7):E05F15/02 |
主分类号 |
E05F15/00 |
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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