Drop volume dispensing closure

Details Drop volume dispensing closure Drop volume dispensing closure

A - Human Necessities

61

M

222/1, 128/98

A61M 35/00 (2006.01) B65D 83/00 (2006.01)

Patent

CA 2022938

DROP VOLUME DISPENSING CLOSURE Abstract of the Disclosure A droplet dispensing closure for connection to a bottle opening. The dispensing closure comprises a cup-shaped body having outer circumferential holding ring and seals for retention and sealing engagement with the opening. A drop dispensing tube extends from a bottom wall of the body and has an outlet opening disposed above an-outer rim of the cup-shaped body. A dispensing hole is provided in registry with the tube for admitting liquid into the tube. An air vent tube, of predetermined length, extends under the bottom wall to one side of the dispensing hole. The air vent tube has a constant diameter passage to admit outside air into the air vent tube. The dispensing tube has a constant inner diameter dispensing section. The air vent tube admits air into the bottle at an equal volume as liquid is forced through the dispensing hole when the bottle is inverted at a position past horizontal. The drip rate is slow enough to permit the counting of drops being dispensed.

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