Patent ID: 6729362
Filing Date: 2004-05-04
Classification: B65B,B65D

Abstract:
A grommet for sealing the opening in a pressurized dispensing container, through which opening a propellant charge is injected into the container, comprising:a base for engaging the outer surface of the container opening through which propellant charge is provided, a crown having a lower surface for engaging the lip of the container opening to provide a sealing engagement, a resilient stretchable neck connecting said base and said crown, said neck having a relaxed state in which it has a diameter greater than the diameter of the lip and a height substantially less than the height of the lip, whereby mounting of said grommet in the lip causes engagement of said crown, said base and said neck with the container lip to provide a sealing relationship between grommet and lip, said base having at least one through opening positioned to be in communication with said neck of said grommet, said grommet having a sealing state and a charging state, said resilient neck in said grommet charging state being stretched to decrease the neck diameter to less than the diameter of the lip of the container opening and to hold said crown above the lip of the container opening so that propellant charge can be passed through said through opening of said base and into the container, said resilient neck in said grommet sealing state being retracted to provide a seal between grommet and lip.