(under subclass 392) Apparatus comprising a control valve which is actuated by fluid, said fluid being controlled by the position of the motor working member.
SEE OR SEARCH THIS CLASS, SUBCLASS:
281+, for cyclically operable expansible chamber motors in which the distributing valve is actuated by a fluid motor the motive fluid supply of which is controlled in response to position of the expansible chamber motor working member.
388, for expansible chamber motors having valve means which is controlled by an input signal and is also operated by fluid pressure which is controlled in response to position of the motor working member.
