专利名称：Valve Control Device发明人：David Anthony Chang申请号：US15450041申请日：20170306
公开号：US20170254434A1公开日：20170907
专利附图：
摘要：A valve control device includes a housing provided with a control shaft, a motorfor driving the control shaft to rotate, a control circuit board connected to the motor,and a sensor for detecting a rotational position of the control shaft. The sensor isconnected to the control circuit board, which controls the motor to drive the control
shaft to rotate in response to a position signal returned by the sensor. The valve controldevice may further include a position pointer, an indicating light, or a buzzer to facilitateobservation of the opening and closing position of the valve.
申请人：David Anthony Chang
地址：Hong Kong HK
国籍：HK
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