Patent ID: 8499969

Claim:
A pneumatic component, adapted to be fastened to a gas container under pressure provided with an aerosol valve, the pneumatic component comprising: a hollow body presenting an interior portion comprising a first upper chamber enclosed by a leaktight and mobile shutter in relation to lateral interior walls of the interior portion of the hollow body and which surround said shutter forming a control member; a fastening system coupled to a periphery of a distal end of the hollow body beyond the shutter in relation to the upper chamber, the fastening system being adapted to cooperate with an upper portion of the gas container surrounding the aerosol valve; at least one lower chamber which is defined upon attachment of the component to the gas container, and enclosed between the shutter and said upper portion of the gas container, said shutter bearing against said aerosol valve according to a predetermined force when the pneumatic component is initially attached to the container, and said shutter continuously bearing against said aerosol valve according to a bearing force depending on the predetermined force and then on a balance with the pressure in the lower chamber; and structure defining a lateral orifice pierced in the body and in communication with the lower chamber, and adapted to promote evacuation of the gases contained within the gas container and through the lower chamber, towards an exterior of the pneumatic component once attached to the container, wherein the fastening system includes a seal and a hooking assembly adapted to cooperate in a leaktight manner with the upper portion of the gas container to define the at least one lower chamber, wherein the lateral outflow orifice is calibrated and adapted to predefine a certain flow of gas according to pressure of the lower chamber and maintained through a balance of pressure on either side of the control member, and wherein the lateral outflow orifice provides controlled micro-diffusion of the gas continuously and at a constant rate from the gas container and remaining unchanged until the gas container is substantially empty or the pneumatic component is removed from the gas container.