Patent ID: 7578319

Claim:
A method of assembling a fluid dispenser comprising: a dispenser member ( 2 ) comprising a body including an inlet tube ( 22 ; 61 ) which internally defines an inlet for admitting fluid into the dispenser member; a reservoir ( 10 ) for containing fluid, said reservoir comprising a cylinder ( 11 ; 11 ′) and a follower-piston ( 14 ) that is slidably mounted in said cylinder; and an annular dish ( 32 ; 32 ′) presenting an outer periphery ( 33 ) that is secured to the cylinder ( 11 ; 11 ′), and an inner periphery ( 321 ) defining an opening ( 20 ) of section that is small relative to the cylinder, the working volume of the reservoir ( 10 ) being defined between the dish ( 32 ; 32 ′) and the follower-piston ( 14 ) over a height of the cylinder, the method including the successive steps of: filling the reservoir ( 10 ) with fluid; and engaging the tube ( 22 ) in leaktight manner in the opening; wherein the step of filling the reservoir comprises filling the reservoir up to the opening so that there is practically no air left in the reservoir, and then performing the step of engaging the tube in the opening, forcing the remaining air and the excess fluid out of the reservoir, around the tube, until the tube comes into leaktight contact in the opening.