.~ With interstage intake or additional inlet to latter stage
DEFINITION
Classification: 417/250
(under subclass 244) Apparatus in which in addition to the pump fluid intake to the prior stage and discharge from the subsequent stage there is provided (1) means in the fluid flow path intermediate the stages whereby fluid may be introduced to be acted upon by the subsequent stage which was not acted upon by the prior stage or (2) means to take additional pump fluid directly into the subsequent stage which was not acted upon by the prior stage.
SEE OR SEARCH THIS CLASS, SUBCLASS:
242, for a controlled bypass between plural pump chambers which is in addition to the normal inlet flow paths to the chambers.
