Dispenser tube with internal sections

Details Dispenser tube with internal sections Dispenser tube with internal sections

1992-03-26

1992-12-08

Shaver, Kevin P.

Dispensing

Collapsible wall-type container

222107, 222490, B65D 3500

Patent

active

051690306

ABSTRACT:
A dispenser tube provides a flexible envelope portion having an open end selectively sealed with a removable cap, and a sealed base, and includes at least one flexible diaphragm member bearing at least one one-way valve positioned in the tube internal cavity and defining a pair of cavity sections. As the tube is squeezed, the fluid material in the tube is sequentially displaced from one cavity section into the next in the direction of the open end, and is prevented from flow back towards the sealed end by the one-way valve.

REFERENCES:
patent: 1122868 (1914-12-01), Davis
patent: 1206661 (1916-11-01), Booth
patent: 1859397 (1932-05-01), Johnson et al.
patent: 3081006 (1963-03-01), Land
patent: 5105985 (1992-04-01), Kroeber

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