Backflow preventing mouth plug and container

Details Backflow preventing mouth plug and container Backflow preventing mouth plug and container

2004-12-30

2009-02-17

Jacyna, J. Casimer (Department: 3754)

Dispensing

Outlet element operated by pressure of contents

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

C222S207000, C222S213000, C222S422000

Reexamination Certificate

active

07490744

ABSTRACT:
There is provided a backflow preventing mouth plug comprising an elastic membrane element having a discharge opening for discharging fluid and mounted to a mouth part of a container and a plug member disposed in the elastic membrane element to prevent unintentional outflow of the fluid. The plug member has a spherical seal surface with which the elastic membrane element elastically and closely contacts. At least one thick wall portion and at least one thin wall portion are alternately formed around the discharge opening of the elastic membrane element in a circumferential direction thereof.

REFERENCES:
patent: 2209665 (1940-07-01), Scheringer
patent: 3111703 (1963-11-01), Kaufman
patent: 3179300 (1965-04-01), Davidson et al.
patent: 4863071 (1989-09-01), Guss et al.
patent: 2006/0065673 (2006-03-01), Miyazaki et al.
patent: 52-91354 (1977-08-01), None
patent: 63-98776 (1988-04-01), None
patent: 1-128875 (1989-05-01), None
patent: 2002-39409 (2002-02-01), None
patent: 2003-126218 (2003-05-01), None
patent: WO 2004/022444 (2004-03-01), None

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