Method of filling and sealing an aerosol dispenser

摘要

A method of pressurizing a container usable for an aerosol dispenser. The method comprises providing a pressurizeable outer container and complementary valve cup, at least one having a channel into the container. A manifold is brought into sealing relationship with the channel of the container. Propellant is supplied from the manifold, goes through the channel and into the container. While the manifold is still sealed to the container, the channel is sealed shut to maintain the pressure. Sealing may be accomplished by sonic or ultrasonic welding.

主权项

1. A method of pressurizing a container usable for an aerosol dispenser, said method comprising the steps of:
providing a polymeric pressurizeable outer container having a neck with a neck periphery and a hole therethrough; providing a polymeric valve cup sealable to said hole of said polymeric outer container, said valve cup having a valve cup periphery complementary to said neck periphery, at least one of said outer container and said valve cup having at least one channel therebetween, said at least one channel forming a flow path from the outside of said outer container to the inside of said outer container; disposing said valve cup onto said neck of said outer container; applying a manifold over said at least one channel, said manifold being in fluid communication with said at least one channel and with a supply of propellant; dispensing propellant from said supply, through said manifold, through said at least one channel and into said outer container to internally pressurize said container; sealing said at least one channel by laser welding, or adhesive bonding, to keep said propellant therein at a pressure greater than atmospheric pressure; and removing said manifold from said at least one channel.