System for quantity-controlled spraying of a liquid active ingre

Dispensing – With cutter and/or punch – To form dispensing opening in container

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Details

22240213, 141 20, B67B 728

Patent

active

041217357

ABSTRACT:
A container filled only partially with a pre-measured, exactly apportioned quantity of liquid active ingredient for one-time use closed in a pressure-tight manner by a closure made at least in part of a resilient material having self-resealing characteristics after piercing with a needle, and a reservoir filled with an aerosol propellant of a type incompatible with said active ingredient after a relatively short time when intermixed. The reservoir has a discharge valve with a hollow needle pushed through the resilient material of the closure and held by the material in a fluid-tight manner, whereby the container can be filled with the propellant only shortly before use of the active ingredient.

REFERENCES:
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patent: 3015414 (1962-01-01), Wilson
patent: 3141583 (1964-07-01), Mapel et al.
patent: 3273606 (1966-09-01), O'Neill, Jr.
patent: 3366148 (1968-01-01), Mizuguchi
patent: 3578037 (1969-09-01), Flyn
patent: 3698453 (1972-10-01), Morane et al.
patent: 3899105 (1975-08-01), Fegley et al.
patent: 3938707 (1976-01-01), Schmit
patent: 3946911 (1976-03-01), Morane et al.

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