Reversing valve

Details Reversing valve Reversing valve

1978-01-24

1979-05-01

Michalsky, Gerald A.

Fluid handling

Systems

Supply and exhaust

137DIG2, 251297, F15B 13042

Patent

active

041518616

ABSTRACT:
An improved reversing valve for use in hydraulic actuators of electric high-voltage circuit breakers wherein the valve is of the type comprising: a ball for controlling the path to be reversed; means for continuously subjecting the ball to a pressure force; a movable plunger for loading the ball; a valve body for controlling the path to be reversed connected to the plunger; and a hydraulically movable piston connected to the plunger. The improvement comprises placement of the ball in a first stable end position by the continuous pressure force and the further inclusion in the valve of a roller toggle means responsive to the loading of the ball by the plunger for causing the continuous pressure on the ball to be reduced and the ball to be placed in a second stable condition.

REFERENCES:
patent: 3128677 (1964-04-01), Tennis

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