PUMP, RECIPROCATING. A POSITIVE DISPLACEMENT DEVICE WHICH UTILIZES THE
RECIPROCATING MOTION OF ONE OR MORE PISTONS, PLUNGERS, OR DIAPHRAGMS
WITHIN A COMPLETE OR PARTIAL ENCLOSURE AS A MEANS OF TRANSFERRING A
LIQUID FROM ONE PLACE TO ANOTHER. IT IS DESIGNED TO BE DRIVEN MANUALLY
OR BY A PRIME MOVER WHICH IS NOT AN INTEGRAL PART OF THE PUMP.
