Dispensing – Collapsible wall-type container – With wall-collapsing means
Patent
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
Friedrich Richard
Rindelaub Frank A. E.
Carten Francis N.
Knowles Allen N.
Lane Hadd
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