Dispenser for paste compositions

Details Dispenser for paste compositions Dispenser for paste compositions

1987-11-25

1989-07-11

Rolla, Joseph J.

Dispensing

Plural sources, compartment, containers and/or spaced jacket

With discharge assistant for each source

222145, 222209, 222383, 222492, 137508, 13751611, B67D 552, B65D 3700

Patent

active

048463728

ABSTRACT:
A multi-component toothpaste pump dispenser utilizes a delivery tube extending below the reservoir of striping paste and into the reservoir of main paste. The delivery tube has holes at the juncture of the top of the tube and the top wall of the pump chamber to allow passage of the striping component while the main component flows axially through the tube. A valve closes all of the openings when the pump chamber reforms to incrementally advance a piston type follower.

REFERENCES:
patent: 1346897 (1920-07-01), King
patent: 1969395 (1934-08-01), Chicoine
patent: 2789731 (1957-04-01), Marraffino
patent: 3305127 (1967-02-01), Baranne
patent: 3474934 (1969-10-01), Forim
patent: 3592361 (1971-07-01), Marand
patent: 4457454 (1984-07-01), Meshberg
patent: 4585149 (1986-04-01), Zulauf
patent: 4696415 (1987-09-01), Meshberg
patent: 4708267 (1987-11-01), Sieverding et al.
patent: 4775080 (1988-10-01), Mettenbrink

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