Motor driven valve

Details Motor driven valve Motor driven valve

1986-03-13

1987-06-02

Herrmann, Allan D.

Motors: spring, weight, or animal powered

Spring

With winding means

74675, 251 71, F03G 108, F16K 3104

Patent

active

046695788

ABSTRACT:
The present invention generally relates to a valve mechanism and more particularly, to a motor driven valve arranged to open or close the valve through rotation of a valve body of the valve by the driving of a reversible motor, and having incorporated therein an improved mechanism for automatic opening or closing of the valve when it becomes impossible to control the valve due to troubles such as power failures, etc.

REFERENCES:
patent: 3279744 (1966-10-01), Fieldsen et al.
patent: 3430916 (1969-03-01), Raymond, Jr.
patent: 3659676 (1972-05-01), Witt
patent: 3808895 (1974-05-01), Fitzwater

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