Pump-motor power limiter and pressure relief

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United States of America Patent

PATENT NO 4355506
SERIAL NO

06033036

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Pump-motor hydraulic power system incorporation means to limit the power transmitted and the pressure in the transmission lines. High pressure line is connected to one end of a servo motor comprising a cylinder with a spring loaded piston therein. When the pump pressure increases above a certain amount it overcomes the spring and moves the piston and the piston rod to a blocking position, acting to limit movement of the three way control valve or to move the three way control valve back if it already exceeds the limit imposed by the power limiter's piston rod.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Leonard, Willie B 5902 Royalton, Houston, TX 77081 11 153

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