Valves and valve actuation – Electrically actuated valve – Rotary electric actuator
Reexamination Certificate
2007-01-02
2007-01-02
Yu, Justine R. (Department: 3751)
Valves and valve actuation
Electrically actuated valve
Rotary electric actuator
C251S129030, C251S249500, C251S310000
Reexamination Certificate
active
11179876
ABSTRACT:
A gas control knob includes a main body having a gas inlet hole and a gas outlet hole, a throttling cock rotatably mounted in the main body to regulate the gas flow rate between the gas inlet hole and the gas outlet hole of the main body, a rotation lever rotatably mounted on the main body to rotate the throttling cock, and a motor mounted on a fixing bracket to drive a transmission mechanism automatically which drives a clutch mechanism to drive and rotate the rotation lever to rotate the throttling cock. Thus, the gas control knob is operated manually or automatically, thereby facilitating a user operating the gas control knob.
REFERENCES:
patent: 2203613 (1940-06-01), Cyr
patent: 4686863 (1987-08-01), Inoue et al.
patent: 5345834 (1994-09-01), Hayashi
patent: 5570606 (1996-11-01), Irie
patent: 6257271 (2001-07-01), Babin et al.
patent: 6471580 (2002-10-01), Ro
Huang Ching-Ying
Huang Hsin-Hsiung
Huang Hsin-Ming
Huang Pao-Hui
Hung Ching-Chieh
Huang Chung-Chin
Rost Andrew J.
Yu Justine R.
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