Patent ID: 7651013

Claim:
A nozzle arrangement adapted to be fitted to a pressurized vessel or container containing an expandable fluid held under pressure in the vessel or container and to permit said expandable fluid present in said vessel or container to be dispensed therethrough under pressure, said nozzle arrangement comprising: a body including an inlet, an outlet, and walls which define an internal fluid flow passageway through which fluid can flow from said inlet to said outlet, one of said walls of the body comprising a resiliently deformable wall member; and wherein the body is formed of two interconnected parts, each of said parts having respective abutment surfaces which are contacted together, one of the parts of the body having a base for mounting to the vessel or container and an actuator portion movably attached to the base and adapted, upon operation, to engage and open an outlet valve of the pressurized vessel or container to which the arrangement is attached to enable the expandable fluid present in the pressurized vessel or container to be released into the internal fluid flow passageway, wherein the resiliently deformable wall member defines substantially the entire length of the internal fluid flow passageway, wherein, in response to an actuation of the actuator portion that causes fluid present in the pressurized vessel or container to be released into the internal fluid flow passageway, the resiliently deformable wall member undergoes a resilient deformation between an initial resiliently-biased configuration in which said substantially the entire length of the internal fluid flow passageway is closed and a distended configuration that allows fluid to flow through said internal fluid flow passageway and be dispensed through the outlet, and wherein, in response to a deactivation of the actuator portion that stops fluid present in the pressurized vessel or container from being released into the internal fluid flow passageway, the resiliently deformable wall member reverts to the initial resiliently-biased configuration such that any fluid remaining in the substantially entire length of the passageway is caused to be expelled, wherein one of the two interconnected parts comprises the resiliently deformable wall member and the other of the two interconnected parts has a corresponding wall which, together with the resiliently deformable wall member, defines said substantially the entire length of the internal fluid flow passageway.