Patent attributes
A mixer-extruder assembly may include a hollow cylindrical chamber and a hopper connected to the chamber. A piston drive shaft having a piston attached at one end may be rotatable about a drive shaft axis that is coaxial with the cylindrical chamber. The piston may have one or more mixer blades coupled thereto and rotatable therewith. The piston may be controllably rotated about the drive shaft axis, after input material received by the hopper is delivered into the chamber, causing the mixer blades to rotate and mix the input material with mixing fluid introduced into the chamber. The piston may also be slidably movable from an upper end of the chamber toward the outlet port of the chamber, so that the mixed input material is extruded through the output port of the chamber.
