Patent ID: 7455086
Filing Date: 2008-11-25
Classification: B65B

Abstract:
1. A nozzle for filling a container with a gas from a pressurized source of gas, comprising: a barrel having an entry end of said barrel adapted for communication with said pressurized source and an exit end adapted for communication with said container; said barrel having plurality of tunnels extending from an exit opening at an interior surface of said barrel to an entrance opening at an exterior surface of said barrel said exit opening at said interior surface of said barrel being closer to said entry opening than said entrance opening at said exterior surface; a sleeve adapted for telescopingly sliding on said barrel where, in a slow flow position of said sleeve, said sleeve on said barrel covers said tunnels preventing gas from flowing through said tunnels and in a non flow position of said sleeve on said barrel, said gas is able to flow through said tunnels; a flange mounted integrally on said barrel; a jacket having one end integrally mounted on said sleeve and another end telescoping onto said flange arranged to provide an expandable pressure chamber defined by an interior surface of said jacket, said flange, said exterior surface of said sleeve, and an end surface of said sleeve; an opening in said barrel arrange to provide communication between said pressure chamber and an interior region of said barrel; a compression spring having one end abutting a surface of said flange and another end of said spring abutting a member of said jacket; said compression spring, being outside said compression chamber; said compression spring, flange, barrel, sleeve, jacket all arranged in operable combination to provide that when gas pressure in said barrel increases, a size of said pressure chamber increases, said spring is compressed, and said sleeve is forced toward a position where said sleeve closes said tunnels and when said gas pressure in said barrel decreases, said sleeve is forced toward a position where said tunnels are open.