.~ Relatively movable inlet and exhaust valves for single working chamber {3}
456
.~.~ One valve moves about an axis
DEFINITION
Classification: 91/456
(under subclass 454) Apparatus in which the movable flow controlling part of at least one of said two valves oscillates or rotates about a fixed axis to perform its valving function.
SEE OR SEARCH THIS CLASS, SUBCLASS:
270, for cyclically operable expansible chamber motors having relatively movable inlet and exhaust valves movable about an axis.