Device for dispensing at least one viscous product in dosed quan

Details Device for dispensing at least one viscous product in dosed quan Device for dispensing at least one viscous product in dosed quan

1986-08-07

1988-02-02

Rolla, Joseph J.

Dispensing

Plural sources, compartment, containers and/or spaced jacket

With discharge assistant for each source

222209, 222340, 222373, 222385, 222401, 222420, 222484, 222546, 222631, 417490, 401262, 401188R, B67D 552, B65D 4718, A46B 1142

Patent

active

047224592

ABSTRACT:
The dispenser device in accordance with the invention comprises a tubular barrel filled with the product, a nose having a dispenser orifice, possibly closed by a detachable cap, a plunger and a pump assembly for pressurizing the product to be dispensed. This assembly comprises an obturator valve applied against a seat by a stem of the plunger which is biased by a spring. A skirt of the plunger slides in a socket of the barrel in a leakproof manner only over a portion of its stroke. The depression of the plunger actuates the opening of the valve and the pressurization of a quantity of air under the skirt. Air pressure is exerted on the product to cause it to emerge from the orifice.

REFERENCES:
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patent: 4040420 (1977-08-01), Speer
patent: 4260077 (1981-04-01), Schroeder
patent: 4261481 (1981-04-01), Speer

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