.~.~ Rectilinearly reciprocating motor working members coaxial with intermediate unitary pumping member
DEFINITION
Classification: 417/396
(under subclass 375) Apparatus in which the pump has a movable pumping member which is driven by plural fluid motor working members, said working and pumping members having an alternate to-and-fro motion along a common longitudinal axis of reciprocation, the pumping member being located between said motor working members and connected thereto in a manner such that all of said members move in unison during the normal mode of operation (includes flexible wall type motors and pumps).
(1) Note. Apparatus in which the fluid motor working members comprise movable pistons and the pumping member comprises a moving cylinder, or vice versa, is excluded under this definition; see subclass 400, below, for subject matter of this type.
SEE OR SEARCH THIS CLASS, SUBCLASS:
393, for plural unitarily movable common pump and motor working members of the type in which the pumping faces of the device are positioned intermediate the motor working faces.
