Pump dispensers for containers

Details Pump dispensers for containers Pump dispensers for containers

1980-09-26

1982-08-17

Scherbel, David A.

Dispensing

Resilient wall

Fluid pressure generating pump or pulsator and/or removable...

222211, 2224008, 222401, F04B 4302, B65D 4734, B67D 542, B67D 554

Patent

active

043445489

ABSTRACT:
Pump dispensers dispense liquids from the interior of a container without the need for removing the top. The pump dispenser employs a manually operated disk to which a diaphragm is attached to force air from an air chamber into the container interior where it displaces the liquid contents forcing them up a fluid tube and out a spout. A valve seals the air chamber except during pumping to prevent the entry of liquids into the air chamber.

REFERENCES:
patent: 890153 (1908-06-01), Mastin
patent: 2069383 (1937-02-01), Nedbalek
patent: 2154393 (1939-04-01), Bates
patent: 2382314 (1945-08-01), Herb
patent: 4113147 (1978-09-01), Frazier et al.

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