Portable apparatus for emptying a waste receptacle

An apparatus comprising:

• an outer frame having an end wall positioned between and connecting first and second side walls, the outer frame having a series of wheels to support the outer frame on an underlying ground surface;
• a first support arm and a second support arm, each support arm connected to the outer frame and extending upwardly from the outer frame to a hooked region, each hooked region extending outwardly from the associated support arm and away from the outer frame to extend over an upper edge of an adjacent waste container;
• a lifting assembly positioned within the outer frame, the lifting assembly having a subframe with a floor, the subframe supporting first and second rails, wherein at least one of the first and second rails is supported by the first and second support arms for translation relative thereto such that the lifting assembly is moveable relative to the first and second support arms between a load position and a dumping position, wherein each of the first and second rails have an upper flange and a lower flange sized to slidably receive an upper lip of a portable waste receptacle;
• a chain drive system having an upper sprocket and a lower sprocket supported by the first support arm, and a chain in meshed engagement with the upper and lower sprockets, the chain connected to the lifting assembly such that the chain drive system is operable to move the lifting assembly relative to the first support arm;
• a motor with a rotary output shaft drivingly connected to the lower sprocket;
• and
• a controller in communication with the motor to control the position of the lifting assembly relative to the chain drive system.