Volumetric hand pump

Details Volumetric hand pump Volumetric hand pump

1997-01-08

1998-02-03

Freay, Charles G.

Pumps

With signal, indicator, or inspection means

417435, 417570, 921701, F01B 1102, F01B 3100

Patent

active

057137234

ABSTRACT:
A volumetric hand pump having a transparent pump chamber and a fixed full stroke volume. The transparent pump chamber allows visual observation of the amount of fluid being pumped when less than the fixed full stroke volume is used. The transparent pump chamber is surrounded by a housing or shroud which includes one or more windows that allow visual access to the transparent pump chamber. An optional stroke counter can be provided to track the number of full pump strokes, thus allowing accurate dispensing of both large and small quantities of fluids, while providing visual observation of the amount of fluid being pumped and dispensed. The pump is particularly useful for dispensing agricultural chemicals.

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