Patent ID: 8701723
Filing Date: 2014-04-22
Classification: B67D,F16K,F17C,Y10T

Abstract:
1. A filler coupling for a pressurized gas receptacle designed to interact with a packaging connector in order to allow said receptacle to be filled, the filler coupling comprising a) a body defining an internal filler circuit between an upstream end designed to be connected to a packaging connector and a downstream end designed to be connected to a receptacle, the coupling comprising b) a dust-prevention valve upstream of the isolation valve, said dust-prevention valve comprising wherein the dust-prevention valve is capable of being moved selectively downstream either: a) in a first determined downstream position, called “contactless” position, configured to open the upstream end of the internal filler circuit, wherein the downstream end of the dust-prevention valve is configured in a position wherein the dust-prevention valve is not pushing the upstream end of the isolation valve, and wherein the upstream end of the isolation valve is capable of being pushed to its downstream position for opening the circuit by the pressurized fluid entering through the open upstream end of the internal filler circuit, or b) in a second determined downstream position called “contact” position configured to open the upstream end of the internal filler circuit wherein the downstream end of the dust-prevention valve is configured in a position wherein the dust-prevention valve pushes on an upstream end of the movable isolation valve and the internal filler circuit is in an open configuration and wherein the dust-prevention valve comprises one or more passageways adapted to guide at least a portion of the stream of fluid traveling from upstream to downstream through the body of said dust-prevention valve.