Dropwise liquid dispensing system particularly suitable for liqu

Details Dropwise liquid dispensing system particularly suitable for liqu Dropwise liquid dispensing system particularly suitable for liqu

1995-11-13

1997-09-09

Huson, Gregory L.

Dispensing

Resilient wall

Fluid pressure generating pump or pulsator and/or removable...

222 95, 222420, B65D 3700

Patent

active

056647042

ABSTRACT:
A dropwise liquid dispensing system is provided which includes a liquid formulation having a surface tension of less than a specific value. A tip is provided for dispensing of the liquid formulation in a dropwise fashion and an inner bottle, in communication with the tip, contains the liquid formulation, and forces the liquid formulation through the tip when compressed. The inner bottle is configured with a volume for preventing a liquid formulation from flowing out of the bottle through the tip without compression of the inner bottle. An outer bottle is provided and disposed around the inner bottle for compressing the inner bottle. The inner and outer bottles are sized for providing hydraulic advantage in compressing the inner bottle with the hydraulic advantage being manifested by the outer bottle having a greater inner surface area than an outer surface of the inner bottle.

REFERENCES:
patent: 4047642 (1977-09-01), Nilson
patent: 4098434 (1978-07-01), Uhlig
patent: 4909416 (1990-03-01), Evezich
patent: 5497910 (1996-03-01), Meadows et al.
patent: 5505342 (1996-04-01), Okamura et al.
patent: 5529213 (1996-06-01), Mack et al.

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