Patent ID: 7347614

Claim:
A vertical mixer apparatus comprising: a frame; wheels configured to support the frame and to roll on a surface; a mixing chamber supported by the frame and disposed above the wheels with respect to the surface, the mixing chamber including a floor and a sidewall extending from the floor in a direction away from the wheels, the mixing chamber further including an open top on an end of the sidewall opposite the floor; a door configured to cover an opening in the sidewall; a split drive system including: a first gearbox disposed below a level of the floor with a first side and a second side opposite the first side and an input section disposed on the first side and configured to connect to a powered shaft, and first and second output shafts disposed on the first and second sides of the first gearbox, respectively, the first output shaft extending from the first gearbox in a same direction as the powered shaft extends from the first gearbox, and second and third gearboxes disposed below a level of the floor and drivingly connected to the first and second output shafts, respectively.