Patent ID: 7806645

Claim:
A lifter for engaging, lifting and inverting a refuse collection cart comprising: a base; an actuator secured to the base; at least one lift arm operatively connected to the actuator movable between a first retracted position and a second inverted dumping position; a first actuator arm pivotably connected to the base; a second actuator arm operatively connecting the lift arm to the first actuator arm; and a lock that that engages the lift arm and the second actuator arm to prevent relative movement between the lift arm and the second actuator arm as the lift arm moves to the inverted dumping position and releases the lift arm and second actuator arm to permit relative movement between the lift arm and the second actuator arm as the lift arm moves to the retracted position, the lock comprising an elongated bar disposed generally traversely to the first actuator arm and having an end that engages a surface of the first actuator arm when in the first retracted position, and the lock being pivotably connected to the lift arm and biased toward engagement with the first actuator arm when the first actuator arm is in the first retracted position.