Single dosage substance dispenser

Details Single dosage substance dispenser Single dosage substance dispenser

1992-03-12

1993-11-09

Huson, Gregory L.

Dispensing

Agitator followed by discharge assistant and/or...

All reciprocating

222365, G01F 1114

Patent

active

052595374

ABSTRACT:
A single dosage substance dispenser is disclosed, which includes a housing having a chamber formed therein for holding a substance to be dispensed and a discharge port that communicates with the chamber. A plunger is slidably mounted to the housing for extending through the chamber and into the discharge port. The plunger includes a first seal portion proximate a lower end thereof, a second seal portion disposed above the first seal portion and a receptacle portion located between the first and second seal portions for accommodating a single dosage of the substance to be dispensed. The first and second seal portions are sealably and slidably engageable with the discharge port. A spring is provided for urging the plunger to retract so that the first seal portion engages the discharge port and the receptacle portion is maintained in the chamber to collect the single dosage therefrom. The spring also permits the plunger to be advanced so that the second seal portion engages the discharge port and the receptacle portion is driven beyond the discharge port to dispense the single dosage collected from the chamber.

REFERENCES:
patent: 1303141 (1919-05-01), Younger
patent: 1637189 (1927-07-01), Helberger
patent: 2121878 (1938-06-01), Locker
patent: 3823853 (1974-07-01), Alden

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