Miniature pump sprayer

Details Miniature pump sprayer Miniature pump sprayer

1992-01-29

1993-09-07

Kashnikow, Andres

Dispensing

With discharge assistant

With movable nozzle interconnected therewith

222496, G01F 1130

Patent

active

052420892

ABSTRACT:
A miniature pump sprayer has its pump cylinder mounted within a rigid vial and throttles product during pumping through a resilient disc valve or spring valve. A coaxial rod within a hollow piston plugs into a hollow tube extending toward the rod within the cylinder for valving the inlet closed during each pressure stroke of the plunger.

REFERENCES:
patent: 2788925 (1957-04-01), Ward
patent: 3187960 (1965-06-01), Gorman
patent: 3211346 (1965-10-01), Meshberg
patent: 4025046 (1977-05-01), Bovis
patent: 4311255 (1982-01-01), Meshberg
patent: 4624413 (1986-11-01), Corsette
patent: 4643338 (1987-02-01), Iizuka
patent: 4735347 (1988-04-01), Schultz et al.
patent: 4871692 (1989-10-01), Maerte
patent: 4911336 (1990-03-01), Blake
patent: 4944431 (1990-07-01), Blake

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