A juicer includes a housing having a top and including a juice spout on a periphery surface, and a support on a bottom. A filtering mechanism is disposed in the housing and includes a cylindrical wall having a meshed screen portion, and at least one annular flange on an outer surface. A rotating mechanism is disposed in the filtering mechanism, the rotating mechanism including a screw comprising a bolt portion and a spiral portion formed on a peripheral of the bolt portion and extending spirally upward to form a top free end. A bottom of the rotating mechanism is coupled to an electric motor and rotatable about a rotating axis of the electric motor. The top free end of the screw is located at an eccentric position relative to the rotating axis. A feed chute is disposed on and engaging the top of the housing. A bottom surface of the rotating mechanism is rested upon the support of the housing.

A device according to various embodiments for preparing wet grain can include at least a first screw configured to receive wet grain. A second screw receives the wet grain from the first screw. At least one of a compressing element and a dehydrating element is included with at least one of the first screw and the second screw to cause a physical property change to the wet grain.

A casing that squeezes sludge floc at one end portion, a screw shaft, a first screw blade spirally provided on an outer peripheral surface of the screw shaft, and a second screw blade provided side by side along a longitudinal direction of the screw shaft with the first screw blade with a predetermined interval from the first screw blade, are included. In the casing, a concentration zone and a separated liquid zone, which are substantially divided from each other by the first screw blade and the second screw blade, are formed. By rotation of the screw shaft, the sludge floc is squeezed in the concentration zone to be separated into sludge and separated liquid, and the separated liquid is moved rearward in the separated liquid zone to be discharged, while the sludge is discharged outside.

A food processor includes a tubular member, and a spindle inserted into the tubular member and including a guide entry section, a crushing section, a grinding section, an extension section, a guide exit section, a guide thread helically wound around the guide entry section, a crushing thread helically wound around the crushing section, and a plurality of spaced-apart grinding threads helically extending from the grinding section to the guide exit section. The guide thread has first and second ring segments each helically extending one revolution around the guide entry section. The first ring segment has a thread depth smaller than that of the second ring segment.

A device according to various embodiments for drying wet grain can include a first screw configured to receive wet grain. A second screw receives the wet grain from the first screw. At least one mechanism is included within at least one of the first screw and the second screw to vaporize water content in the wet grain.

A device according to various embodiments for preparing wet grain can include at least a first screw configured to receive wet grain. A second screw receives the wet grain from the first screw. At least one of a compressing element and a dehydrating element is included with at least one of the first screw and the second screw to cause a physical property change to the wet grain.

A composting garbage disposal for under sink use in a kitchen which separates food waste items into liquid and solid components. The liquid components are directed to a standard sewer or septic system. The solid components are directed to a removable storage bin. The food waste items are separated by use of a motor driven auger member which is in close proximity to the inside wall of a screened cup so that the liquid exits the screened portion of the cup and the solid exits through an aperture in the floor of the cup. A microprocessor circuit senses the strain on the drive motor and if the strain becomes excessive, automatically reverses the direction of the shaft and auger thereby releasing excess food waste that is causing the excess strain.

A device according to various embodiments for drying wet grain can include a first screw configured to receive wet grain. A second screw receives the wet grain from the first screw. At least one mechanism is included within at least one of the first screw and the second screw to vaporize water content in the wet grain.

A variable compression screw press includes a volume displacing member which overlies the pressure housing feed flight of the screw press. In one embodiment, the volume displacing member is a shroud which may be moved in and out of the intake hopper as desired, without having to disassemble the press. In a second embodiment, the volume displacing member is a hinged gate which can be adjusted to overlie more or less of the pressure housing feed flight. In a third embodiment which may be used in cooperation with either first or second embodiment, the volume within the pressure housing feed flight is partly occupied by block elements removably mounted to the screw flighting of the pressure housing feed flight.

A food processor includes a tubular member, and a spindle inserted into the tubular member and including a guide entry section, a crushing section, a grinding section, an extension section, a guide exit section, a guide thread helically wound around the guide entry section, a crushing thread helically wound around the crushing section, and a plurality of spaced-apart grinding threads helically extending from the grinding section to the guide exit section. The guide thread has first and second ring segments each helically extending one revolution around the guide entry section. The first ring segment has a thread depth smaller than that of the second ring segment.