Precompression pump sprayer

Details Precompression pump sprayer Precompression pump sprayer

1995-08-07

1996-10-01

Kashnikow, Andres

Dispensing

With discharge assistant

With movable nozzle interconnected therewith

2223219, B65D 8854

Patent

active

055605206

ABSTRACT:
A precompression pump sprayer has a sliding discharge valve/secondary piston member in sliding telescoping engagement with an inlet conduit extending into a secondary portion of the pump cylinder forming therewith an annular chamber housing the piston return spring, the annular chamber having a vent/drain port opening directly into the container, and the member being cup-shaped and having openings sized to facilitate discharge valve opening and closing.

REFERENCES:
patent: 4025046 (1977-05-01), Boris
patent: 4050613 (1977-09-01), Corsette
patent: 4051983 (1977-10-01), Anderson
patent: 4109832 (1978-08-01), Kutik et al.
patent: 4140249 (1979-02-01), Majima
patent: 4144987 (1979-03-01), Kishi
patent: 4189064 (1980-02-01), O'Neill
patent: 4262823 (1981-04-01), Monden
patent: 4278189 (1981-07-01), Kirk, Jr.
patent: 4402432 (1983-09-01), Corsette
patent: 4437588 (1984-02-01), Shay
patent: 4530449 (1985-07-01), Nozawa et al.
patent: 4591077 (1986-05-01), Corsette
patent: 4692103 (1987-09-01), Anderson
patent: 5100029 (1992-03-01), Meshberg

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