Rotary valve actuators having partial stroke damping apparatus

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United States of America Patent

PATENT NO 8567752
APP PUB NO 20110049400A1
SERIAL NO

12552814

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Rotary valve actuators having partial stroke damping apparatus are described herein. An example rotary valve actuator described herein includes a housing containing a first piston and a second piston opposite the first piston, where the pistons move in opposite directions to rotate a shaft of the rotary valve actuator. A damper is operatively coupled to at least one of the first piston or the second piston to slow the movement of the piston for only a portion of a stroke of the rotary valve actuator.

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Patent Owner(s)

Patent OwnerAddress
EMERSON PROCESS MANAGEMENT VALVE AUTOMATION INC18703 GH CIRCLE WALLER TX 77484

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
ter, Horst Gerard Eibergen, NL 1 6
van, Dorp Erwin Bad Bentheim, DE 2 6

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