Dispenser for viscous fluids

Dispensing – Collapsible wall-type container – Plural container and/or compartment

Patent

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Details

222145, B65D 3522

Patent

active

048260444

ABSTRACT:
A dispenser for dual extrusion of striped viscous fluids such as toothpaste or the like comprising a container having an opening, an axially collapsible sleeve insert inserted in the opening, and a piston engaging one end of the sleeve insert. The container is adapted to contain a first viscous material which extends into the sleeve. A second viscous fluid material is provided about the sleeve. The sleeve has a first set of openings at one end adjacent the piston for passage for the first viscous fluid material and a second set of openings therein spaced from the first set of openings and adjacent the opening in the container. Ribs are provided adjacent the other end of the sleeve insert and adjacent the second set of openings for guiding the second material into dual striping extrusion with the first material.

REFERENCES:
patent: 2789731 (1957-04-01), Marraffino
patent: 2914220 (1959-11-01), Marraffino
patent: 2918199 (1959-12-01), Marraffino
patent: 2944704 (1960-07-01), Taylor
patent: 4340154 (1982-07-01), VanManen
patent: 4461403 (1984-07-01), Prahs
patent: 4708267 (1987-11-01), Sieverding et al.

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