Devices for holding and discharging liquid and paste-like substa

Details Devices for holding and discharging liquid and paste-like substa Devices for holding and discharging liquid and paste-like substa

1975-07-24

1976-09-07

Knowles, Allen N.

Dispensing

Collapsible wall-type container

With wall-collapsing means

B65D 3528

Patent

active

039790258

ABSTRACT:
Dual-chamber pressurized dispensers for a variety of products. A flexible inner container defines one chamber in which the product to be dispensed is contained, the inner container being connected at one end to a dispensing valve. A rigid outer container encloses the flexible inner container and therebetween defines another chamber in which a pressurizing propellant is contained. Each inner container is designed to achieve high expulsion efficiency, with an upper portion having a lipped aperture in which the dispensing valve is received and a lower portion having longitudinal stiffening ribs.

REFERENCES:
patent: 2768638 (1956-10-01), Henke
patent: 2815152 (1957-12-01), Mills
patent: 3097766 (1963-07-01), Biehl et al.
patent: 3246802 (1966-04-01), Fuhrmann
patent: 3323206 (1967-06-01), Clark
patent: 3731854 (1973-05-01), Casey

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