Metering dispensers

Details Metering dispensers Metering dispensers

1984-09-21

1986-12-02

Rolla, Joseph J.

Dispensing

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

222207, 222478, G01F 1126

Patent

active

046258973

ABSTRACT:
A metering dispenser assembly comprises a squeeze bottle 1 with a metering cup 3 fitting in the neck of the bottle and carrying a dip tube 9 which extends to the bottom of the bottle. The dip tube, or at least a pillar 7 into which it fits, terminates at a level between the top and bottom of the cup, and there is a vent hole at this level to provide communication between the container and atmosphere. The vent is small enough not to allow significant leakage from the cup during a dispensing operation. The vent could instead be alongside the dip tube.

REFERENCES:
patent: 2599446 (1952-06-01), Green
patent: 2730270 (1956-01-01), Heinemann
patent: 3246807 (1966-04-01), Micalleff
patent: 3705668 (1972-12-01), Schwartzmann
patent: 3739955 (1973-06-01), Gores
patent: 4138040 (1979-02-01), Stock
patent: 4143797 (1979-03-01), Reed
patent: 4474312 (1984-10-01), Donoghue

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