Patent ID: 8393500

Claim:
A discharge container comprising a container main body, a discharge pump for discharging a contained liquid from a nozzle, and a fixing cap, wherein the discharge pump comprises a cylinder member made of a large-diameter cylinder and a small-diameter cylinder having an inlet pipe at a lower end, a piston member mounted on the cylinder member, and a nozzle head, the piston member comprises: a piston engaged with the small-diameter cylinder internally so as to slide freely; a poppet valve engaged with the piston; a piston guide engaged with an upper end of the piston; an air piston which is provided with an inner tube portion engaged with the outer circumference of the piston guide, an upper wall portion, an upper outer tube set upright at the upper wall portion and a sliding tube portion engaged with the large-diameter cylinder internally so as to slide freely, thereby forming an air chamber inside the large-diameter cylinder; and a stem which is provided with a lower tube portion engaged with an upper part of the piston guide to form a gas-liquid mixing chamber including a ball valve inside the upper part of the piston guide and engaged with the upper part of the inner tube portion so as to slide freely, an upper tube portion on which a sealing tube is installed consecutively, and a mesh ring mounted on the upper inner circumference; further wherein the nozzle head is mounted on the outer circumference of the stem; a flange is installed on the outer circumference of the tube portion of the stem; the sealing tube is installed vertically from the flange; the upper outer tube having an air passage channel at an upper end of the outer circumference is set upright at the upper wall portion of the air piston; an air hole is drilled at an upper wall portion between the upper outer tube and the inner tube portion, and the inner circumference face of a distal end of the sealing tube is slidingly in contact with the outer circumference face of a distal end of the upper outer tube according to the vertical movement of the stem, by which an air passage channel between the air chamber and the outside of a container is opened and closed.