Harvard College

Disney Enterprises, Inc.

John Peter Whitney

Robert J Wood

Pratheev Sabaratnam Sreetharan

A multi-layer, super-planar structure can be formed from distinctly patterned layers. The layers in the structure can include at least one rigid layer and at least one flexible layer; the rigid layer includes a plurality of rigid segments, and the flexible layer can extend between the rigid segments to serve as a joint. The layers are then stacked and bonded at selected locations to form a laminate structure with inter-layer bonds, and the laminate structure is flexed at the flexible layer between rigid segments to produce an expanded three-dimensional structure, wherein the layers are joined at the selected bonding locations and separated at other locations.

Monolithic fabrication of three-dimensional structures

An arm assembly for use in a robot to provide gravity counterbalancing of the robot arms. The arm assembly includes an arm and a drive assembly. The arm assembly includes a differential interconnecting the drive assembly with the arm link. The differential is attached to a torso-side or upper end of the arm link, and the differential is adapted to provide gravity counterbalancing for the predefined mass of the arm link. A pair of half counterweights are provided and arranged to each move in one degree of freedom and to provide two equal counterweights to the differential's two inputs such as input gears, pulleys, or the like. The drive assembly includes two motors that are grounded. In some embodiments, both the motors and the counterweights are spaced apart from the robot's shoulder, i.e., spaced apart from the differential near the robot's pelvis or low in the torso.

Growing community of inventors

Pittsburgh, PA, United States of America

John Peter Whitney