Patent ID: 8235250
Filing Date: 2012-08-07
Classification: A45D,B65D

Abstract:
1. A dispenser comprising: a flexible outer tube comprising a spout, external threads proximate to the spout, an annular protrusion between the external threads and the spout, an indicating mark proximate to one end of the external threads, and an internal space; a flexible inner tube disposed in the outer tube and comprising an inner space, a front extension, a protuberance in the front extension, a passageway on a front edge of the front extension, and a channel member through the protuberance and being in communication with the inner space of the inner tube and a space in front of the inner tube; a plunger switch comprising a hollow cylindrical body, a shank projecting forward from a center of a front end of the cylindrical body, a molded key on a surface of the shank, two passages on a front edge of the cylindrical body, and two channel members on the front end of the cylindrical body proximate to the shank wherein the channel members are in communication with an internal space defined by the cylindrical body and a space in front of the plunger switch, and the cylindrical body is fitted in the front extension of the inner tube; a valve assembly comprising a cylindrical rotation actuator including a stepped-diameter stem projecting from a front end, an inward extending rim on a rear end, an internal cylindrical member including a material dispensation tunnel through both the cylindrical member and the stem, an axial slot on an inner surface of the cylindrical member, and an indication unit on an outer surface of the rotation actuator; and a spout releasably secured onto the stem wherein the key of the plunger switch slides in the slot so that both the plunger switch and the rotation actuator are capable of co-rotating; an elastic member put on the spout of the outer tube; and a cap comprising internal threads on an inner surface adjacent to a rear opening, and an engagement surface adjacent to the internal threads, wherein in a closed state of the dispenser the internal threads of the cap are secured to the external threads of the outer tube with the elastic member being biased between a blind end of the rotation actuator and the protrusion of the outer tube, and the material dispensation tunnel being blocked by the shank; and wherein in response to unfastening and removing the cap the elastic member expands to push the rotation actuator until the rim is stopped by the protrusion of the outer tube with the material dispensation tunnel being not blocked by the shank such that: a rotation of the rotation actuator communicates one of the passages with the passageway so as to extrude a material contained in the outer tube out of the spout of the valve assembly via the passageway, one of the passages, and the material dispensation tunnel when the outer tube is depressed; a further rotation of the rotation actuator communicates one of the channels with the channel member so as to extrude a material contained in the inner tube out of the spout of the valve assembly via the channel member, one of the channels, and the material dispensation tunnel when the outer tube is depressed; and a still further rotation of the rotation actuator communicates both the other passage with the passageway and the other channel with the channel member so as to extrude the material in the outer tube out of the spout of the valve assembly via the passageway, the other passage, and the material dispensation tunnel and extrude the material in the inner tube out of the spout of the valve assembly via the channel member, the other channel, and the material dispensation tunnel respectively when the outer tube is depressed with the materials of both the inner and outer tubes being mixed in the material dispensation tunnel.