초록 ▼

The invention relates to an endpiece for dispensing and/or measuring out liquid pharmaceutical substances, the endpiece comprising a cylindro-conical body (1) fitted with a bottom base (13) for receiving thrust and for coupling to a tank capable of being put under pressure, and an axial ejection duc

The invention relates to an endpiece for dispensing and/or measuring out liquid pharmaceutical substances, the endpiece comprising a cylindro-conical body (1) fitted with a bottom base (13) for receiving thrust and for coupling to a tank capable of being put under pressure, and an axial ejection duct (10) containing a central core (2) and communicating firstly at its top end with a spray nozzle, and secondly at its bottom end with the tank, it is characterized in that the top end of the ejection duct (10) is closed in temporary and leakproof manner by a wall (111) which is secured to the top portion (1a) of the body (1) and which extends perpendicularly to the duct, the wall being movable in reversible manner under drive from the substance, said wall being provided with a central orifice (110) capable of being closed in the closed position by a stud (20) secured to the core (2) being forced thereagainst, the periphery of the wall being attached to said body (1) via an elastically deformable link element (112) enabling the wall (111) to move in axial translation under pressure.

대표청구항 ▼

[ What is claimed is:] [1.]1. An endpiece for dispensing and/or measuring out liquid pharmaceutical substances, the endpiece comprising a cylindro-conical body (1) fitted with a base (13) for receiving thrust and for coupling to a tank capable of being put under pressure, and an axial ejection duct

[ What is claimed is:] [1.]1. An endpiece for dispensing and/or measuring out liquid pharmaceutical substances, the endpiece comprising a cylindro-conical body (1) fitted with a base (13) for receiving thrust and for coupling to a tank capable of being put under pressure, and an axial ejection duct (10) containing a central core (2) and communicating at a first end with a spray nozzle, and at its other end with the tank, the ejection duct (10) being closed in temporary and leakproof manner by a wall (111) which is secured to said body (1) and which extends perpendicularly to said duct, said wall being further provided with a central orifice (110) capable of being closed in the closed position by a stud (20) secured to the core (2) being forced thereagainst, the periphery of said wall being attached to said body (1) via an elastically deformable link element (112) enabling said wall (111) to move in axial translation under pressure, the endpiece being characterized in that said wall (111) is made in the form of a membrane having permeability that enables air to filter through it.