Patent ID: 9095864
Filing Date: 2015-08-04
Classification: B05B

Abstract:
1. A fluid dispenser unit comprising: a pump comprising a pump body and at least a first piston that slides in leaktight manner in said pump body between a non-dispensing position and a dispensing position; and a spray head mounted on said pump and that is movable manually between a rest position, in which said first piston is in a non-dispensing position, and an actuated position, in which said first piston is moved towards a dispensing position, said spray head including a spray head body, said spray head body is a one-piece integral construction that defines an exterior wall of said spray head and an expulsion channel, said spray head body provided with a dispenser orifice defined in said exterior wall, said spray head body including, upstream from said dispenser orifice, a spray profile that is adapted to spray the fluid while being dispensed, said spray head body having an end wall comprising said dispenser orifice, said spray head including a rigid insert that is disposed inside said spray head body, upstream from said spray profile, said spray profile formed between said end wall of the spray head body and said insert, said insert having an end surface that forms the end of said spray profile at least in part; said rigid insert is secured to said first piston, said first piston being stationary relative to said spray head body; said unit further comprises a closure member that is disposed in said expulsion channel of the spray head body directly upstream from the dispenser orifice, said closure member movable between a closed position, in which said closure member co-operates with said dispenser orifice in order to close said dispenser orifice, and a non-closing position, in which said closure member is moved away from said dispenser orifice, said closure member being urged towards the closed position in the rest position of said spray head; and said first piston includes at least one through passage enabling the fluid to pass from an inside to an outside of said first piston, such that said expulsion channel, between said through passage and said spray profile, extends between an outside surface of said rigid insert and an inside surface of said spray head body.