Self-closing liquid dispensing package

Details Self-closing liquid dispensing package Self-closing liquid dispensing package

1995-11-02

1999-12-07

Huson, Gregory L.

Dispensing

Collapsible wall-type container

Nonmetallic

222212, 222494, 206469, B65D 3508

Patent

active

059968451

ABSTRACT:
The present invention relates to a self-closing liquid dispensing package comprising a liquid container and a self-closing flat channel valve in liquid communication with liquid container, wherein the liquid container comprises a reservoir portion for containing liquid. The reservoir portion is made of a thermoformed thermoplastic material. In one preferred embodiment of the present invention, the self-closing flat channel valve is in liquid communication with the container via a connection portion wherein the connection portion comprises a stiffening crease. The package of the present invention is useful for multiple use of various liquid products having a wide range of viscosity.

REFERENCES:
patent: 3815794 (1974-06-01), Carlisle
patent: 3913734 (1975-10-01), Siegel
patent: 4252257 (1981-02-01), Herzig
patent: 4792060 (1988-12-01), Brogli
patent: 5511697 (1996-04-01), Gruenbacher et al.
patent: 5529224 (1996-06-01), Chan et al.
patent: 5632416 (1997-05-01), Lane, Jr. et al.

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