Valves and valve actuation – Electrically actuated valve – With nonelectrical actuator
Reexamination Certificate
2007-03-20
2007-03-20
Keasel, Eric (Department: 3753)
Valves and valve actuation
Electrically actuated valve
With nonelectrical actuator
C251S129110, C251S249500, C074S625000
Reexamination Certificate
active
11146385
ABSTRACT:
An electric driving device for a valve includes a lower casing member, a cover plate, a driving unit, a cylindrical part, a control part, a third rod and a fourth rod. The cover plate closes the open top of the lower casing member. The driving unit has an electric motor with a shaft being attached with a first gear. The cylindrical part with an axial bore is fixedly attached to the outer side of the lower casing member. The control unit has a first rod with being attached with a second gear to mesh with the first gear and a first elastic member is disposed on the first rod next to the first gear. A third gear is disposed next to the first elastic member and the second rod with the front section thereof being attached with a fourth gear. The third rod is disposed near the first rod in parallel with a fifth gear being attached to a front section thereof and a sixth gear being attached to a rear section thereof to mesh with the third gear. The fourth rod is attached with a seventh gear to mesh with the fifth gear.
REFERENCES:
patent: 331075 (1885-11-01), Miles
patent: 1582214 (1926-04-01), Gray
patent: 4265142 (1981-05-01), Watanabe
patent: 6129337 (2000-10-01), Wu
patent: 6962320 (2005-11-01), Ozawa
Fristoe Jr. John K.
Keasel Eric
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