Minature pump sprayer

Details Minature pump sprayer Minature pump sprayer

1995-07-13

1997-01-07

Kashnikow, Andres

Dispensing

With cutter and/or punch

To form dispensing opening in container

22215306, 2223211, 2223217, B67D 542

Patent

active

055908152

ABSTRACT:
A ventless miniature pump sprayer comprises a reciprocable plunger head extending outwardly of an open end of a tubular member divided into an upper sleeve section and a lower container section for a liquid to be sprayed. A dip tube integral with the member extends into the container, and a pump cylinder and hollow inlet tube integral with tie member extend into the sleeve section. An integral shipper seal is molded in the inlet tube and a coaxial rod within a hollow piston on the plunger cooperates with the inlet tube for controlling the inlet and, during initial actuation of the plunger, pierces the shipper seal and has a groove or a rib thereon which establishes an air passage through which unwanted air from the pump chamber is ejected into the container to aid in pump priming.

REFERENCES:
patent: 3040991 (1962-06-01), Fedit
patent: 3820698 (1974-06-01), Franz
patent: 4369900 (1983-01-01), Saito et al.
patent: 4538745 (1985-09-01), Dunning
patent: 4693675 (1987-09-01), Venus, Jr.
patent: 4767058 (1988-08-01), LaRosa
patent: 4775080 (1988-10-01), Mettenbrink
patent: 4911336 (1990-03-01), Blake
patent: 5242089 (1993-09-01), Knickerbocker

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