Energizing ring for a closure membrane

Details Energizing ring for a closure membrane Energizing ring for a closure membrane

2005-12-06

2005-12-06

Mar, Michael (Department: 3754)

Dispensing

Outlet element operated by pressure of contents

Axially slidable tube, sleeve, or apertured cap

C222S212000

Reexamination Certificate

active

06971558

ABSTRACT:
A closure for a container, which has a self-closing valve having a cup-shaped valve head (32) with a dispensing aperture defined therein. In response to increased pressure in the container, the head of the self-closing valve to flatten and partially invert, thereby opening the dispensing aperture (6). The closure (1) includes an energizing ring (5) arrange surrounding the valve head (32) and adapted to restrict the radial expansion thereof. The position and design of the energizing ring (5) relative to the valve head (32) may be adjusted to affect the performance of the valve allowing a single valve design to be used for a number of different applications. Alternatively the energizing ring (5) may be used to improve the performance of a particular design of valve.

REFERENCES:
patent: 5842618 (1998-12-01), Julemont et al.
patent: 5897033 (1999-04-01), Okawa et al.
patent: 6095381 (2000-08-01), Schwanenberg
patent: 35 31 783 (1985-09-01), None
patent: 196 12 561 (1996-03-01), None
patent: 196 13 130 (1996-04-01), None
patent: 0 545 678 (1998-02-01), None
patent: WO 99/10247 (1999-03-01), None
patent: WO 00/29296 (2000-05-01), None

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