Fluid handling – With indicator – register – recorder – alarm or inspection means – Position or extent of motion indicator
Patent
1997-09-26
2000-06-27
Walton, George L.
Fluid handling
With indicator, register, recorder, alarm or inspection means
Position or extent of motion indicator
74412TA, 74421A, 74423, 74425, 74625, 25112912, 251248, 2512495, 25112903, F16K 3105, F16K 3153
Patent
active
060794429
ABSTRACT:
There is disclosed an actuator for a rotary valve, such as a butterfly valve which rotates a quarter of a turn between open and closed positions. The actuator includes a drive mechanism releasably attachable to the stem of the valve for rotating it in response to operation of a reversible electric motor.
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Bertoja Michael John
Gent David Wayne
Johnston Francis William
Raymond, Jr. Frank Jo
Bray International, Inc.
Walton George L.
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