Metering bottle

Details Metering bottle Metering bottle

1990-02-13

1991-07-16

Huppert, Michael S.

Dispensing

Nongravity feed to trap of vacuum, gravity, or manual...

222207, 222214, 222383, B67D 506

Patent

active

050318020

ABSTRACT:
The metering bottle for dispensing a dose of liquid when the cap of the bottle is removed. When the cap is fully on the bottle, it keeps a bellows compressed. When the cap is removed, the bellows is allowed to expand and the resulting suction causes a dose of liquid from the bottle to be sucked into the bellows via a plunger tube which sticks into the liquid and via an opening into the bellows chamber. A one-way valve at the opening into the bellows chamber then prevents the dose of liquid in the bellows chamber from flowing back into the bottle. When the dose of liquid is used and the bellows chamber is empty of liquid, the lid can be replaced. When the lid is replaced the bellows is collapsed. The air in the bellows chamber is then forced back through an air microhole in the one-way valve into the bottle.

REFERENCES:
patent: 2311367 (1943-02-01), Chambers
patent: 2680477 (1954-06-01), Schira, Jr.
patent: 3171446 (1965-03-01), Koch
patent: 3767088 (1973-10-01), Deussen
patent: 4875603 (1989-10-01), Weinstein
patent: 4936490 (1990-06-01), Battegazzore

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