Patent ID: 7497356

Claim:
A fluid dispenser device, comprising: a chamber ( 15 , 15 ′) provided with an inlet valve ( 2 , 112 ) and with an outlet valve ( 67 , 76 ), and defining a sealed slide cylinder ( 14 ); a piston ( 6 ) disposed inside the chamber and including a lip ( 61 ) capable of sliding in sealed manner in said slide cylinder ( 14 ); an actuator rod ( 7 ) on which the piston ( 6 ) is slidably mounted; a bearing flange ( 42 ) for coming to bear against a reservoir neck; and a ferrule ( 5 ) against which the piston ( 6 ) is resiliently urged in the rest position; said device being characterized in that said chamber comprises a top portion ( 15 ) and a bottom portion ( 15 ′), the sealed slide cylinder ( 14 ) being situated above the bearing flange ( 42 ), at the top portion, so that it cannot be inserted into a reservoir neck, and in that the bottom portion ( 15 ′) is situated below the flange ( 42 ), so as to be inserted into the reservoir neck.