Abstract: A tool-holding arm includes a plurality of links and a tool coupling that removably secures a tool to the tool-holding arm. A first fluid spring provides a gravity-counteracting force to the tool-holding arm. A locking mechanism selectively locks the first fluid spring. An adjustment mechanism selectively adjusts an amount of the gravity-counteracting force provided by the first fluid spring.

Abstract: An exoskeleton includes a first link that pivots in a transverse plane about a first vertical axis and a second link that pivots in a transverse plane about a second vertical axis. The second link is coupled to the first link. An arm support assembly is coupled to the second link and pivots about a horizontal axis. The arm support assembly includes a spring that generates an assistive torque that counteracts gravity. The arm support assembly provides the assistive torque to an arm of a wearer to support the arm of the wearer. The arm support assembly further includes a cam profile and a cam follower. Contact between the spring, cam follower and cam profile determines an amount of the assistive force provided by the arm support assembly. A cuff is coupled to the arm support assembly and the arm of the wearer.

Abstract: A tool arm mount couples a tool arm to an aerial work platform. The tool arm mount includes a first mounting hook that hangs on a first rail of the aerial work platform and a second mounting hook that hangs on a second rail of the aerial work platform. The first mounting hook defines a first channel in which the first rail is received, and the second mounting hook defines a second channel in which the second rail is received. The first and second mounting hooks are coupled to a spine of the tool arm mount. The tool arm mount also includes a first lock that locks the first mounting hook to the first rail.

Abstract: A tool-holding arm includes a plurality of links and a tool coupling that removably secures a tool to the tool-holding arm. A first fluid spring provides a gravity-counteracting force to the tool-holding arm. A locking mechanism selectively locks the first fluid spring. An adjustment mechanism selectively adjusts an amount of the gravity-counteracting force provided by the first fluid spring.

Abstract: An exoskeleton includes strapping for coupling the exoskeleton to a wearer. The exoskeleton also includes a hip structure, a thigh link rotatably connected to the hip structure and a shank link rotatably connected to the thigh link. The weight of the exoskeleton is transferred to a surface on which the exoskeleton is standing through the hip structure, the thigh link and the shank link. An arm brace supports an arm of the wearer, and a telescopic link is rotatably connected to the arm brace. An energy storage device delivers power to a tool through a conduit, and a conduit-energy storage device coupling connects the conduit to the energy storage device.

Abstract: An exoskeleton includes a first link that pivots in a transverse plane about a first vertical axis and a second link that pivots in a transverse plane about a second vertical axis. The second link is coupled to the first link. An arm support assembly is coupled to the second link and pivots about a horizontal axis. The arm support assembly includes a spring that generates an assistive torque that counteracts gravity. The arm support assembly provides the assistive torque to an arm of a wearer to support the arm of the wearer. The arm support assembly further includes a cam profile and a cam follower. Contact between the spring, cam follower and cam profile determines an amount of the assistive force provided by the arm support assembly. A cuff is coupled to the arm support assembly and the arm of the wearer.

Abstract: An exoskeleton includes a first link that pivots in a transverse plane about a first vertical axis and a second link that pivots in a transverse plane about a second vertical axis. The second link is coupled to the first link. An arm support assembly is coupled to the second link and pivots about a horizontal axis. The arm support assembly includes a spring that generates an assistive torque that counteracts gravity. The arm support assembly provides the assistive torque to an arm of a wearer to support the arm of the wearer. The arm support assembly further includes a cam profile and a cam follower. Contact between the spring, cam follower and cam profile determines an amount of the assistive force provided by the arm support assembly. A cuff is coupled to the arm support assembly and the arm of the wearer.

Abstract: A tool arm mount couples a tool arm to an aerial work platform. The tool arm mount includes a first mounting hook that hangs on a first rail of the aerial work platform and a second mounting hook that hangs on a second rail of the aerial work platform. The first mounting hook defines a first channel in which the first rail is received, and the second mounting hook defines a second channel in which the second rail is received. The first and second mounting hooks are coupled to a spine of the tool arm mount. The tool arm mount also includes a first lock that locks the first mounting hook to the first rail.

Abstract: An exoskeleton includes a first link that pivots in a transverse plane about a first vertical axis and a second link that pivots in a transverse plane about a second vertical axis. The second link is coupled to the first link. An arm support assembly is coupled to the second link and pivots about a horizontal axis. The arm support assembly includes a spring that generates an assistive torque that counteracts gravity. The arm support assembly provides the assistive torque to an arm of a wearer to support the arm of the wearer. The arm support assembly further includes a cam profile and a cam follower. Contact between the spring, cam follower and cam profile determines an amount of the assistive force provided by the arm support assembly. A cuff is coupled to the arm support assembly and the arm of the wearer.

Abstract: An exoskeleton includes strapping for coupling the exoskeleton to a wearer. The exoskeleton also includes a hip structure, a thigh link rotatably connected to the hip structure and a shank link rotatably connected to the thigh link. The weight of the exoskeleton is transferred to a surface on which the exoskeleton is standing through the hip structure, the thigh link and the shank link. An arm brace supports an arm of the wearer, and a telescopic link is rotatably connected to the arm brace. An energy storage device delivers power to a tool through a conduit, and a conduit-energy storage device coupling connects the conduit to the energy storage device.