Precompression pump sprayer

Details Precompression pump sprayer Precompression pump sprayer

1996-08-09

1997-05-06

Derakshani, Philippe

Dispensing

With discharge assistant

With movable nozzle interconnected therewith

2223219, B65D 8854

Patent

active

056262647

ABSTRACT:
A precompression pump sprayer is primed by the provision of a priming ramp for deflecting the lower end of a poppet valve member at the end of the plunger downstroke for cocking the valve member so as to disrupt its sealing action with the discharge valve seat to thereby permit air to be released from the pump chamber through the discharge orifice and to the atmosphere.

REFERENCES:
patent: 4051983 (1977-10-01), Anderson
patent: 4923094 (1990-05-01), O'Neill
patent: 5064105 (1991-11-01), Montaner
patent: 5190192 (1993-03-01), Lina et al.
patent: 5560520 (1996-10-01), Grogen

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