초록 ▼

A method and apparatus for removing and dispensing liquid from a receptacle. The apparatus includes a pump housing having a cylindrical fluid chamber, a coil spring within the fluid chamber, a coil spring within the fluid chamber to bias a piston which slidably traverses the inside wall of the fluid

A method and apparatus for removing and dispensing liquid from a receptacle. The apparatus includes a pump housing having a cylindrical fluid chamber, a coil spring within the fluid chamber, a coil spring within the fluid chamber to bias a piston which slidably traverses the inside wall of the fluid chamber, and an actuator button supported by the top of the piston. A bottom plug with a plug valve port, a plug intake port, a plug vent port, a plug shoulder, and a conduit boss engages the bottom of the pump housing. A tube connects to the boss to extend into the liquid within the receptacle. A cylindrical skirt rotatably lodges between the bottom of the pump housing and the plug shoulder for application to the neck of the receptacle. A diaphragm is interposed between the bottom of the pump housing and the bottom plug. The process includes pushing repeatedly downward the actuator button to draw liquid into the fluid chamber until the same is substantially full. The process additionally includes continuing to push downward the actuator button after the fluid chamber has become substantially full to bulge the diaphragm and allow the passage of liquid from the fluid chamber into the atmosphere.

대표청구항 ▼

A pump for removing and dispensing liquid from a receptacle comprising; (a) a pump housing having a generally cylindrical side, and including a structure defining an essentially cylindrical fluid chamber, a pump annulus interposed between the cylindrical side and the fluid chamber, a discharge spout

A pump for removing and dispensing liquid from a receptacle comprising; (a) a pump housing having a generally cylindrical side, and including a structure defining an essentially cylindrical fluid chamber, a pump annulus interposed between the cylindrical side and the fluid chamber, a discharge spout having a discharge passage and formed integrally with the pump housing, said fluid chamber having a bottom evidencing a fluid intake port and a fluid discharge port; (b) spring biased means housed within said fluid chamber; (c) a piston with a piston side that snugly slidably traverses the inside wall of the cylindrical fluid chamber, said spring biased means engaging the bottom of the piston for biasing the piston away from the bottom of the fluid chamber; (d) a generally cylindrical actuator button supported by the top of said piston; (e) a bottom plug engaging the bottom of the pump housing and including a structure evidencing at least one plug valve port, at least one vent port, a plug shoulder for sealing and mating with the top of the receptacle, a bottom plug intake port, and a depending conduit boss that extends axially downward and is in communication with the bottom plug intake port; (f) a removable tube of sufficient length removably engaging the conduit boss to reach nearly to the bottom of the receptacle with which the pump is associated for communication with the fluid product therein for the flow of the fluid from the receptacle into the fluid chamber of the pump housing for dispensation through the discharge passage of the discharge spout; (g) a cylindrical skirt rotatably lodging between the bottom of the pump housing and the plug shoulder and adapted for application to the open neck of the receptacle; and (h) a diaphragm means interposed between the bottom of the pump housing and the bottom plug, and structurally defining a diaphragm vent opening and a flap valve which pivotally covers the bottom plug intake port, said diaphragm means sealing the discharge port of the fluid chamber and preventing the communication of the discharge port with the discharge passage of the discharge spout when the fluid chamber is not substantially full with the fluid product and the actuator button is not depressed.