Stable upright fluid dispensing containers

Details Stable upright fluid dispensing containers Stable upright fluid dispensing containers

2005-11-15

2005-11-15

Kaufman, Joseph A. (Department: 3754)

Dispensing

With discharge assistant

Container with follower

C222S192000, C222S405000

Reexamination Certificate

active

06964357

ABSTRACT:
A stable upright fluid dispensing container in which a fluid is dispensed from the top of the container while the container remains in an upright position. The bulk of the fluid always remains in the bottom of the container. A passageway tube and a plunger apply pressure on the fluid. Knobs on the plunger can include horizontal knob gears, vertical knob gears or push button rack gears. Pressure can also be applied to the fluid by a non-rotating threaded passageway tube having a fixed plunger and a rotating threaded knob. In flexible sealed containers pressure can be applied to the fluid by providing a flexible sealed container, a non-threaded passageway tube and one-way check valve. These features provide increased pressure such that the fluid will be forced to flow into a passageway tube through an entrance opening at the bottom of the passageway tube, up through the tube and out an exit opening. Further, once pressure is relaxed, the fluid flow will stop and the fluid will remain in the passageway tube. Thus, all the fluid in the container will be dispensed.

REFERENCES:
patent: 1288554 (1918-12-01), France
patent: 1336390 (1920-04-01), Sargery et al.
patent: 2461211 (1949-02-01), Guthrie
patent: 2540511 (1951-02-01), Coleman
patent: 3420417 (1969-01-01), Kardel
patent: 5025960 (1991-06-01), Seager
patent: 6347728 (2002-02-01), Apolloni et al.

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