Multiple fluid dispensing device for low surface tension formula

Details Multiple fluid dispensing device for low surface tension formula Multiple fluid dispensing device for low surface tension formula

1995-03-16

1996-10-15

Kashnikow, Andres

Dispensing

Collapsible wall-type container

Plural container and/or compartment

222 95, 2221451, 222214, B65D 3522

Patent

active

055645968

ABSTRACT:
A multiple fluid dispensing device is provided which includes a plurality of liquid formulations with at least one formulation having a surface tension of less than a specific value. A tip is provided for dispensing of the liquid formulations in a dropwise fashion and an inner bottle, in communication with the tip, contains the liquid formulations in separate compartments, and forces the liquid formulations through the tip when compressed. The inner bottle is configured with a volume for preventing the liquid formulations 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: 3200995 (1965-08-01), Gangwisch
patent: 3335912 (1967-08-01), Reeves, Jr.
patent: 4098434 (1978-07-01), Uhlig
patent: 4261482 (1981-04-01), Yamada et al.
patent: 4573581 (1986-03-01), Galloway et al.
patent: 4634023 (1987-01-01), Tanaka et al.
patent: 4964539 (1990-10-01), Mueller
patent: 5076470 (1991-12-01), Hatakeyama et al.
patent: 5137178 (1992-08-01), Stokes et al.
patent: 5360144 (1994-11-01), Slade

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