(under the class definition) Apparatus in which working fluid en route to or from the working chamber of the device is either supplied thereto or discharged therefrom by a plurality of passages separately communicating therewith, each passage being at least adapted to communicate with a separate fluid source or point of use.
(1) Note. Included herein are such devices in which working fluid is either introduced into or exhausted from the working chamber by a plurality of separate and distinct passages, each passage ordinarily being connectible to a separate working fluid source or place of use (or disposition) spaced from the rotary expansible chamber device.
SEE OR SEARCH CLASS
91, Motors: Expansible Chamber Type,
21, for rotary expansible chamber type motors having plural working fluid passages for conducting working fluid to the working chamber thereof, at least one of the passages having either a separate, selectively adjustable fluid flow control member or a separate fluid flow control portion of a unitary flow control means for sequentially and selectively controlling fluid flow through at least one other passage. However, a plurality of such passages sequentially controlled by the same portion of an adjustable fluid flow control member to merely control thereby the rate of fluid flow to the working chamber is not considered fluid flow through diverse paths for classification in Class 91.
137, Fluid Handling,
565.01+, for a fluid system including a pump having plural exhausts, each of which is separately controlled and directed to a separate point of use. 417, Pumps,
440+, for a significant pump having plural exhausts one of which being controlled and exhausting to waste.
