Patent ID: 6863093
Filing Date: 2005-03-08
Classification: A61M,B05B,B65B

Abstract:
1. A method of filling a reservoir of a fluid dispenser, the dispenser comprising: a reservoir designed to contain a fluid at a pressure that is substantially equal to or less than atmospheric pressure; and a pump associated, in sealed manner, with the reservoir, so as to extract fluid from the reservoir, the pump being of the airless type so that the pressure inside the reservoir reduces as the amount of fluid extracted by the pump increases, said pump including an inlet valve and an outlet valve, the inlet valve communicating with the reservoir, and the outlet valve communicating with an outlet channel, the inlet valve communicating with the outlet valve via a pump chamber, said method comprising: a prior step of emptying the reservoir by using the pump to extract the fluid so that suction is created in the reservoir; a step of supplying fluid externally, said step consisting in supplying the outlet channel with fluid coming from an external source; and an opening step consisting in opening the outlet valve, while holding the inlet valve open, so that the suction existing in the reservoir sucks fluid from the source through the outlet channel, the open outlet valve, the pump chamber, and the open inlet valve, and into the reservoir.