Patent ID: 8469242

Claim:
A liquid dispensing system, comprising: a container having a top, a bottom and a side wall, thereby defining a hollow interior, said side wall having an outer edge projecting over said top, said top and said outer edge defining an outwardly open recess; a sleeve which can be sealingly inserted into said top of said container, said sleeve comprising a connection element to which a rising pipe can be connected, and an inflow opening; a piston movably arranged in said sleeve and axially movable between a retracted position and an extended position, said piston comprising a cavity, a piston inlet opening and an outlet opening, said cavity connecting said piston inlet opening and said outlet opening, said piston further comprising a guide element extending axially and circumferentially on an outer surface of said piston, said piston having an inner end received within said sleeve and having an outer end protruding from said sleeve; an extension arm connected at one end to the outer end of the piston so as to laterally project from said piston, said extension arm comprising a dispensing opening adjacent its other end and an outlet channel, said outlet channel connecting said outlet opening with said dispensing opening, said extension arm being movable between a closed position and a use position in which said dispensing opening extends beyond said outer edge; a dispensing valve provided on said extension arm operatingly connected with said dispensing opening and said outlet channel; an actuating member provided on said extension arm which is adapted to activate said dispensing valve; and a handle provided on said piston and being configured for moving said piston relative to said sleeve; wherein said extension arm is arranged for being completely recessed in said outwardly open recess in said closed position and can be moved into said use position when said piston is in said extended position, and further wherein said extension arm rotates said piston into a dispensing position when moved from said closed position to said use position; wherein said guide element defines a path along which said piston can be moved relative to said sleeve thereby defining said extended position, said retracted position and said dispensing position; and wherein said dispensing valve can be activated selectively by said actuating member so as to enable liquid to be dispensed from said dispensing opening or to prevent liquid from flowing off via said dispensing opening, when said extension arm is in said use position.