Abstract: A shoe provides a suspended orthotic system that includes at least a contoured, three-dimensional chassis configured with a heel cup. The chassis provides the primary support and determines the shape and form of the shoe. The chassis receives a footbed, which includes a first material integrally formed with a second material, both materials operating to provide an orthotic benefit. A shoe sole includes a number of pods that are selectively arranged and coupled to the chassis to actively suspend the chassis and the footbed. The shoe can further include a dynamic arch support system that manually or automatically adjusts the arch region of the shoe. The shoe may be more comfortable, provide biomechanical advantages, be lighter, and be more stylish than traditional shoes.

Abstract: A shoe provides a suspended orthotic system that includes at least a contoured, three-dimensional chassis configured with a heel cup. The chassis provides the primary support and determines the shape and form of the shoe. The chassis receives a footbed, which includes a first material integrally formed with a second material, both materials operating to provide an orthotic benefit. A shoe sole includes a number of pods that are selectively arranged and coupled to the chassis to actively suspend the chassis and the footbed. The shoe can further include a dynamic arch support system that manually or automatically adjusts the arch region of the shoe. The shoe may be more comfortable, provide biomechanical advantages, be lighter, and be more stylish than traditional shoes.

Abstract: The hammers provide multiple impact points for debris, by providing impact points via tips at different radii from the axis of rotation of the hammer mill. The tips preferably are at substantially the same radius from the axis of rotation of the hammer about the hammer support shaft, so that efficiency is maintained even as the hammers lay back. The multiple impact points produce a more effective result, by partially sizing the debris on initial impact, before more precise final sizing in the grinding chamber. Angled surfaces on the hammer tips provide more effective shearing and tearing action than with conventional bar hammers. Wear patterns are such that grinding efficiency as the hammers wear down is maintained throughout the life of the replaceable tips. Preferably, the hammers weigh substantially more than conventional hammers, to provide a higher energy impact, and to reduce the tendency of the hammers to lay back.

Abstract: A tub grinder is disclosed in which material which is already sufficiently small in size, primarily being abrasive aggregate or earthen material, may be discharged from the receptacle to bypass the comminution apparatus and thus substantially reduce wear thereto. A portion of the cylindrical wall of the receptacle is provided with classifying openings, for example by providing a screened opening as a band around the receptacle. The classifying openings permit material which is already smaller than the size of the openings to fall therethrough, thereby bypassing the comminution apparatus. Preferably, a conveyor is positioned beneath the receptacle, to catch and discharge the material which falls through the screen or other classifying openings to a pile located away from the receptacle. Sidewalls positioned on either side of the receptacle stop any material which is flung out to the side, and redirect it down onto the conveyer.