Patent ID: 7059499

Claim:
A fluid-dispensing pump for dispensing a fluid stored inside a fluid-storing portion from a nozzle head set up above the fluid-storing portion, by pressing the nozzle head, comprising: an extendable/retractable member disposed between the fluid-storing portion and the nozzle head, for storing the fluid therein; an inflow valve mechanism disposed at a lower end of the extendable/retractable member, for introducing the fluid stored in the fluid-storing portion into the extendable/retractable member; and an outflow valve mechanism disposed at an upper end of the extendable/retractable member, for discharging therefrom the fluid contained in the extendable/retractable member to the nozzle head, said outflow valve mechanism comprising (i) a valve seat member having an opening portion constituting a fluid path through which the fluid passes, (ii) a first valve member for closing the fluid path by contacting a first portion of the valve seat member in accordance with the pressure inside the extendable/retractable member, and (iii) a second valve member for closing the fluid path by contacting a second portion of the valve seat member in accordance with the pressure inside the extendable/retractable member, wherein the first valve member and the second valve member are coupled with each other and unbiased, and the second portion is arranged downstream of the first portion.