Finger operated spray pump

Details Finger operated spray pump Finger operated spray pump

1977-10-03

1979-05-15

Spar, Robert J.

Dispensing

With discharge assistant

With movable nozzle interconnected therewith

222385, 239333, B67D 542

Patent

active

041543742

ABSTRACT:
A finger-operated spray pump assembly including a tank, a primary piston slidably fitted inside the tank, a secondary piston slidably fitted inside the primary piston, and a spring fitted inside the primary piston and on the outside of the secondary piston for biasing the primary piston away from the secondary piston.

REFERENCES:
patent: 3877616 (1975-04-01), Stevens
patent: 3907174 (1975-09-01), Steiman
patent: 3923250 (1975-12-01), Boris
patent: 3933279 (1976-01-01), Maier

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