Patent ID: 8919246

Claim:
A waster compactor comprising: a housing: an inclined wall located in an upper part of the housing, a motor mounted on the upper side of the inclined wall, the motor connected to a shaft extending downwardly from the inclined wall and at an angle to the vertical, a helical screw connected to the shaft, the helical screw converging conically downwardly and decreasing downwardly in pitch, a lower hopper extending downwardly from the inclined wall below the helical screw to form a funnel below the helical screw, the lower hopper being opened above the helical screw, an inlet area above the helical screw for receiving waste material to be compacted, the inlet area opened into the helical screw and lower hopper so that waste material received in the inlet area descends into the helical screw and the lower hopper, the lower narrower end of the helical screw located in a conduit which is slightly wider than the lower, narrower end of the helical screw, the conduit being narrower in diameter than the lower hopper and downwardly converging, the lower end of the conduit having a constriction, the waste material being compacted by its downward movement under the action of the helical screw and by being forced by the helical screw through the conduit and its constriction, and the lower hopper having drainage holes through which liquid collecting in the lower hopper can drain by gravity, a collector positioned to collect liquid passing through the drainage holes.