Container mounted pump with improved check valve structure

Details Container mounted pump with improved check valve structure Container mounted pump with improved check valve structure

1993-05-03

1994-05-03

Huson, Gregory L.

Dispensing

With discharge assistant

With movable nozzle interconnected therewith

222380, B65D 8854

Patent

active

053079620

ABSTRACT:
An improved pump-head structure, which has a valve annulus mounted on the inlet to the lower end of a liquid accumulator of the pump-head structure to prevent leakage of a liquid from the liquid accumulator. A plunger valve is connected to the valve annulus via a spring piece, which exerts a downward force on the plunger valve and thus maintains the inlet of the lower end of the liquid accumulator forcedly and tightly closed under normal conditions by the downward action of the plunger valve.

REFERENCES:
patent: 2906300 (1959-09-01), Becher
patent: 4050860 (1977-09-01), Beres
patent: 4856677 (1989-08-01), Brunet et al.

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