Foam generating dispenser having a movable and stationary porous

Details Foam generating dispenser having a movable and stationary porous Foam generating dispenser having a movable and stationary porous

1976-05-19

1977-08-30

Hoffman, Drayton E.

Dispensing

With material treatment or conditioning means

222211, 239343, B65D 3700, B67D 558

Patent

active

040449238

ABSTRACT:
An improved nozzle assembly for manually actuated foam generating and dispensing units in which a tapered bottle cap fitted at its interior end with a dip tube subassembly, is provided with a movable porous element which, upon discharge of foam from the dip tube subassembly, effects a further reduction in bubble size in the foam thereby to provide a stiffer and more consistent foam. The movable porous element floats in the nozzle between a position of seating against the tapered internal nozzle surfaces and a retracted position allowing air to return about the member back to the interior of the generating and dispensing unit.

REFERENCES:
patent: 3622049 (1971-11-01), Thompson
patent: 3937364 (1976-02-01), Wright
patent: 3985271 (1976-10-01), Gardner

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