Abstract: A power generating leg, configurable to be coupled to a person's lower limb, comprising a thigh link, a shank link, a knee mechanism, a torque generator, and a power unit. The knee mechanism is connected to said thigh link and said shank link, and configured to allow flexion and extension movements of said thigh link and said shank link relative to each other. The torque generator is configured to generate torque between said shank link and said thigh link. The power unit is coupled to said torque generator, and configured to cause said torque generator to generate torque.

Abstract: The lower extremity exoskeleton comprises two leg supports connectable to person's lower limbs and configured to rest on the ground during their stance phase. Each leg support comprises a thigh link and a shank link; a knee joint configured to allow flexion and extension between the shank link and the thigh link. The lower extremity exoskeleton further comprises an exoskeleton trunk connectable to the person'supper body. The exoskeleton trunk is connectable to the thigh links of the leg supports allowing for the flexion and extension between the leg supports and the exoskeleton trunk. Two torque generators are coupled to each of the knee joints. A power unit, capable of providing power, is coupled to the torque generators. In operation when a leg support is in a stance phase and climbing a slope or stairs, the power unit injects power into the respective torque generator thereby extending the respective knee angle.

Abstract: A lower extremity exoskeleton, configurable to be coupled to a person, comprises two leg supports configurable to be coupled to the person's lower limbs and configured to rest on the ground during their stance phases. Each leg support comprises a thigh link, a shank link, and two knee joints. Each knee joint is configured to allow flexion and extension between the respective shank link and the respective thigh link. The lower extremity exoskeleton also comprises an exoskeleton trunk configurable to be coupled to the person's upper body. The exoskeleton trunk is rotatably connectable to the thigh links of the leg supports allowing for the flexion and extension between the leg supports and the exoskeleton trunk. In this exemplary embodiment, the energy required for flexion and extension movement between the shank link and the respective thigh link of a leg support over a cyclic knee motion is provided by the person.

Abstract: An apparatus for transferring material winding between spools. The apparatus includes spindels for positioning first and second spools in a co-planar arrangement with parallel axes of rotation. With the material initially secured to the base of a first spool with tape, a winding mechanism is energized to turn the spools. When the first spool is filled, a first sheave directs the incoming material to the second spool which is rotated at the rate of material supply. A tape applicator is then directed to apply a section of tape over the material, pressing it against the base of the second spool. A small wire is included on the base of the tape being applied. The applicator force on the wire against the material is designed to be sufficient to sever the material, separating the material on the first spool from the material being wound on the second.

Abstract: A watering can or water pitcher includes a pump and a snorkel which can be used to draw water out of a vessel and into the watering can.

Abstract: An apparatus for transferring material winding between spools. The apparatus includes spindels for positioning first and second spools in a co-planar arrangement with parallel axes of rotation. With the material initially secured to the base of a first spool with tape, a winding mechanism is energized to turn the spools. When the first spool is filled, a first sheave directs the incoming material to the second spool which is rotated at the rate of material supply. A tape applicator is then directed to apply a section of tape over the material, pressing it against the base of the second spool. A small wire is included on the base of the tape being applied. The applicator force on the wire against the material is designed to be sufficient to sever the material, separating the material on the first spool from the material being wound on the second.