Dispensing – With frangible closure for outlet – About line or point of weakness
Patent
1996-12-05
1998-10-13
Bomberg, Kenneth
Dispensing
With frangible closure for outlet
About line or point of weakness
222564, 222569, 222571, B65D 2542
Patent
active
058199942
ABSTRACT:
A flow controlling cap (20) for a fluid container (12) controls fluid flow by means of gravity and pressure, and has a first chamber (22) formed by a first hollow cylinder (22) and a second chamber (24) formed by a second hollow cylinder (24) having a greater diameter than the first hollow cylinder (22). The first cylinder (22) forms the part of the cap (20) that will fit into the interior of the bottle neck (46). A partition wall (36) between the two chambers (22, 24) sealingly contacts the radial surface of the bottle opening (46). The cap (20) structure has a plurality of holes (30, 40, 42) formed in it that are specifically positioned to use forces of gravity, static fluid pressure, ambient air pressure and fluid surface tension to control the timing of fluid release when a bottle (12), fitted with the cap (20), is moved from an upright to an inverted position.
REFERENCES:
patent: 3330450 (1967-07-01), Clare
patent: 4697722 (1987-10-01), Saito et al.
patent: 4856685 (1989-08-01), Gaffney
patent: 5048723 (1991-09-01), Seymour
patent: 5123575 (1992-06-01), Li
patent: 5356053 (1994-10-01), Di Fatta
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