Apparatus for dispensing products from a self-sealing dispenser

Details Apparatus for dispensing products from a self-sealing dispenser Apparatus for dispensing products from a self-sealing dispenser

1985-02-26

1987-09-29

Rolla, Joseph J.

Dispensing

With cutter and/or punch

To form dispensing opening in container

222 83, 222207, 222212, 222383, 222494, B65D 3700, G01F 1100

Patent

active

046964150

ABSTRACT:
A vacuum pump dispenser has a primary compartment and a pumping compartment. The pumping compartment has an vacuum pump, having a flexible dome, movable to reduce the volume of the pumping compartment and dispense product therefrom, and a spout, having an opening through which product is dispensed, extending from the pumping compartment. The dispenser is self-sealing because the spout is sealed by a closure member having a sealing tip. The closure member is biased into a position where the tip closes the opening in the spout when the pumping compartment is in an unoperated position. The closure member is responsive to movement of the the flexible dome to move the tip out of the closed position to permit dispensing.

REFERENCES:
patent: 3162333 (1964-12-01), Davidson
patent: 3249268 (1966-05-01), Neuner
patent: 3754690 (1973-08-01), Marchant
patent: 3964641 (1976-06-01), Langensiepen et al.
patent: 4154371 (1979-05-01), Kolaczinski et al.
patent: 4301948 (1981-11-01), Czech et al.
patent: 4394939 (1983-07-01), Thor et al.
patent: 4457454 (1984-07-01), Meshberg
patent: 4457455 (1984-07-01), Meshberg
patent: 4485943 (1984-12-01), Czech
patent: 4533069 (1985-08-01), Drobish
patent: 4564130 (1986-01-01), Eulenburg

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