Valve actuators
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United States of America Patent
Stats
-
Apr 29, 1986
Grant Date -
N/A
app pub date -
Jun 1, 1983
filing date -
Jun 12, 1982
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A valve actuator is disclosed which comprises only two housings, namely a first housing defining a single enclosure for a reversible electric motor, electrical control gear associated with the motor and torque control means and travel limit switch mechanism, and a second housing comprising a gear box containing reduction gearing.
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