Container closure with biased closed valve

Details Container closure with biased closed valve Container closure with biased closed valve

2007-03-27

2007-03-27

Derakshani, Philippe (Department: 3754)

Dispensing

Outlet element operated by pressure of contents

Spring form, resilient or compressible flow controller or...

Reexamination Certificate

active

11211348

ABSTRACT:
A closure is removably attachable to a container and comprises a dispensing orifice and a valve element that is biased closed over the orifice. By inverting the container so that a liquid contents of the container exerts pressure on the valve element, or by squeezing the container causing the liquid contents to exert pressure on the valve element, the valve element opens the dispensing orifice allowing the liquid contents to be dispensed from the container. On removing the pressure from the valve element, the valve element resiliently closes the dispensing orifice.

REFERENCES:
patent: 6223956 (2001-05-01), Albers
patent: 6367668 (2002-04-01), Schwanenberg
patent: 6378742 (2002-04-01), Rohr et al.
patent: 6749092 (2004-06-01), Olechowski et al.
patent: 2004/0178230 (2004-09-01), Feierabend

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