Class Information Number: 417/535 Name:Pumps > Expansible chamber type > Plural pumping chambers > Chambers formed at opposite ends of rectilinearly moving pumping member > All discharge distributors positioned laterally of pumping member path Description: Apparatus in which there is provided inlet discharge valve means for controlling flow of pump fluid to and from the chambers, the discharge valves for the several chambers being located at a position radially spaced from the path of movement of the pumping member.
