Draw back pump

B - Operations – Transporting – 67 – D

Patent

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Details

B67D 7/60 (2010.01) A47K 5/13 (2006.01) B05B 11/00 (2006.01) F04B 9/14 (2006.01)

Patent

CA 2470532

A piston pump dispenser having a reciprocating piston pump arrangement which, in a dispensing stroke, dispenses fluid from an outlet and, in a charging stroke, to draw fluid from a reservoir also draws back fluid from the outlet through which fluid is dispensed in the dispensing stroke. 21

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