Valves and valve actuation – Electrically actuated valve – Remote or follow-up control system for electrical actuator
Patent
1974-12-19
1976-09-21
Rosenthal, Arnold
Valves and valve actuation
Electrically actuated valve
Remote or follow-up control system for electrical actuator
F16K 3102
Patent
active
039814807
ABSTRACT:
A variable gas leak rate valve which utilizes a poled piezoelectric element to control opening and closing of the valve. The gas flow may be around a cylindrical rod with a tubular piezoelectric member encircling the rod for seating thereagainst to block passage of gas and for reopening thereof upon application of suitable electrical fields.
REFERENCES:
patent: 3465732 (1969-09-01), Kattchee
patent: 3614486 (1971-10-01), Smiley
EerNisse Errol P.
Peterson Gary D.
Carlson Dean E.
Constant Richard E.
King Dudley W.
Rosenthal Arnold
The United States of America as represented by the United States
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