Double-layered fluid container

Details Double-layered fluid container Double-layered fluid container

2006-12-19

2006-12-19

Shaver, Kevin (Department: 3754)

Dispensing

Collapsible wall-type container

With wall-collapsing means

C222S105000, C222S189090, C222S209000, C137S533190

Reexamination Certificate

active

07150376

ABSTRACT:
A double-layered fluid container which includes an upper diaphragm and a lower diaphragm, which provides alternating squeezing action so that the upper diaphragm and the lower diaphragm causes an opening and a closing action to the container. The contents in the container are isolated from the external contact with air and therefore oxidation process is inhibited and the container provides a constant delivery of the contents and the contents are prevented from back flowing into the container. The delivery of the contents can be controlled at a stable squeezing pressure.

REFERENCES:
patent: 2677465 (1954-05-01), Meyer
patent: 2677495 (1954-05-01), Buttery
patent: 3064860 (1962-11-01), Madaffer
patent: 3098589 (1963-07-01), Graham
patent: 3098598 (1963-07-01), Weisgerber et al.
patent: 3572377 (1971-03-01), Graham et al.
patent: 3682558 (1972-08-01), Miller
patent: 3814292 (1974-06-01), Dargols
patent: 4035303 (1977-07-01), Ufferfilge
patent: 4154366 (1979-05-01), Acres
patent: 5282549 (1994-02-01), Scholz et al.
patent: 5487490 (1996-01-01), Estes
patent: 5665070 (1997-09-01), McPhee
patent: 6062430 (2000-05-01), Fuchs
patent: 6305577 (2001-10-01), Fillmore et al.

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