Methods and apparatus for body weight support system

A system, comprising:

• a support track;
• a trolley having a drive assembly and a support mechanism, the drive assembly having a plurality of wheels configured to movably suspend the trolley from the support track, the support mechanism including a drum, a motor configured to rotate the drum, and an adjustable tether having a first end portion coupled to the drum, the adjustable tether having a second end portion configured to be coupled to a support harness wearable by a user, the support mechanism configured to support an amount of weight of the user when the second end portion of the adjustable tether is coupled to the support harness;
• and
• a rigid powered conductor fixedly coupled adjacent to and offset from the support track such that each of the support track and the drive assembly are separated from the powered conductor, the trolley configured to receive electric power from the powered conductor and to supply the motor of the support mechanism with a portion of the electric power in response to a force exerted by the user on the adjustable tether such that the motor rotates the drum to transition the support mechanism from a first operating state to a second operating state, the amount of weight of the user supported by the support mechanism when in the first operating state being about equal to the amount of weight of the user supported by the support mechanism when in the second operating state.

A trolley, comprising:

• a drive assembly having a plurality of wheels configured to movably suspend the trolley from a support track;
• a support mechanism including an adjustable tether and configured to support a predefined amount of weight of a user;
• and
• an electronic system electrically coupled to the drive assembly and the support mechanism, the electronic system configured to electrically couple to a rigid powered conductor coupled adjacent to and offset from the support track, the electronic system configured to supply the drive assembly with a portion of the electric power received from the powered conductor in response to a force exerted by the user on the adjustable tether such that the drive assembly moves the plurality of the wheels along the track,
• the electronic system configured to supply the support mechanism with a portion of the electric power received from the powered conductor to transition the support mechanism from a first operating state to a second operating state in response to the force exerted by the user on the adjustable tether, the support mechanism configured to support the predefined amount of weight when in the first operating state and the second operating state.