Dispenser pumps

Details Dispenser pumps Dispenser pumps

1993-09-28

1995-03-14

Gluck, Richard E.

Dispensing

With discharge assistant

With material supply container and discharge assistant with...

B67D 540

Patent

active

053970357

ABSTRACT:
A dispenser pump has a base incorporating an intake tube, an axially-upright cylindrical pump body fixed on top of the base by a screw-threaded engagement, and a cap plunger having a piston which sweeps the interior of the body. A discharge spout opens from a discharge opening adjacent the base. Both the outlet and inlet openings are valved by a one-piece valve body in the form of a free-standing sleeve resting on the base, with a peripheral lip forming the outlet valve at one end of the sleeve and a radially-inward projection forming the inlet valve as a flexible flap. The body and base are separable to release the valve body for easy cleaning.

REFERENCES:
patent: 3680986 (1972-08-01), Kutik et al.
patent: 3752366 (1973-08-01), Lawrence
patent: 4218178 (1980-08-01), Kutik et al.
patent: 4489861 (1984-12-01), Saito et al.
(Drawing of dispenser pump sold in the U.S. in Feb. 1990) Englass FN30 Dispenser, "englass"; The English Glass Company Limited, Scudamore Road, Leicester LE3 1UG.

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