Design and method for producing a sealing and shut-off valve...

Details Design and method for producing a sealing and shut-off valve... Design and method for producing a sealing and shut-off valve...

2005-04-05

2005-04-05

Nicolas, Frederick (Department: 3754)

Dispensing

Collapsible wall-type container

Plural container and/or compartment

C222S213000, C222S494000

Reexamination Certificate

active

06874658

ABSTRACT:
The invention discloses and claims five different embodiments of a plural chambered dispensing tube assembly that prevents products separated by tube chambers from mixing prior to being dispensed by providing a seal at the dispensing end. The seal is an integral part of the tube assembly.

REFERENCES:
patent: 2589743 (1952-03-01), Snaith
patent: 3241727 (1966-03-01), Heckman
patent: 3913809 (1975-10-01), Nilson
patent: 4099651 (1978-07-01), von Winckelmann
patent: 4905819 (1990-03-01), Clements et al.
patent: 4949877 (1990-08-01), Hanna et al.
patent: 4984715 (1991-01-01), Green
patent: 6321947 (2001-11-01), Gross et al.
patent: 6398077 (2002-06-01), Gross et al.

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