Abstract: A pressure redistribution system, including: a chair having a frame; a back cushion inflation system operatively connected to an upper portion of the frame, wherein the back cushion inflation system includes a back cushion and a plurality of back cushion air bladders located within an opening in the back cushion; a pump system operatively connected to the back cushion inflation system for inflating and deflating the back cushion air bladders; a seat cushion sensor system operatively attached to the wheelchair frame and the pump system, wherein the seat cushion sensor system includes a seat cushion and a plurality of seat cushion air bladders located within an opening in the seat cushion and a plurality of load sensors located adjacent to the plurality of seat cushion air bladders and wherein the pump system is able to inflate and deflate the plurality of seat cushion air bladders; a light display operatively connected to the back cushion inflation system, wherein the light display provides a visual indication

Abstract: A pressure redistribution system, including: a chair having a frame; a back cushion inflation system operatively connected to an upper portion of the frame, wherein the back cushion inflation system includes a back cushion and a plurality of back cushion air bladders located within an opening in the back cushion; a pump system operatively connected to the back cushion inflation system for inflating and deflating the back cushion air bladders; a seat cushion sensor system operatively attached to the wheelchair frame and the pump system, wherein the seat cushion sensor system includes a seat cushion and a plurality of seat cushion air bladders located within an opening in the seat cushion and a plurality of load sensors located adjacent to the plurality of seat cushion air bladders and wherein the pump system is able to inflate and deflate the plurality of seat cushion air bladders; a light display operatively connected to the back cushion inflation system, wherein the light display provides a visual indication

Abstract: An adjustable wheelchair is disclosed which adjusts to changes in a user's size and weight which includes a scissor-type foldable mechanism which connects two side frames. Wheels for the wheelchair are attached to each of the side frames. An adjustable seat and adjustable back support are a flexible material which span from one side frame to the other. These are designed to unroll and lengthen or roll up and shorten the width of the seat and the back support between the side frames. The scissor-type foldable mechanism includes a tube which slides within a tube, a threaded rod and a threaded stop which function to allow pre-adjustment of the width of the foldable mechanism such that it may be folded and opened to the pre-adjusted width. The frames may be supplemented with reinforcements to accommodate a change in the user's weight.

Abstract: An adjustable wheelchair is disclosed which adjusts to changes in a user's size and weight which includes a scissor-type foldable mechanism which connects two side frames. Wheels for the wheelchair are attached to each of the side frames. An adjustable seat and adjustable back support are a flexible material which span from one side frame to the other. These are designed to unroll and lengthen or roll up and shorten the width of the seat and the back support between the side frames. The scissor-type foldable mechanism includes a tube which slides within a tube, a threaded rod and a threaded stop which function to allow pre-adjustment of the width of the foldable mechanism such that it may be folded and opened to the pre-adjusted width. The frames may be supplemented with reinforcements to accommodate a change in the user's weight.

Abstract: A deflection plate for protecting a load cell of a mobile dynamometer, includes a generally elongated member having a front surface, a back surface, a top surface, a bottom surface and two side surfaces. The front surface is at least partially tapered such that the front surface adjacent the top surface is thicker than the front surface adjacent the bottom surface. The taper of said front surface of the deflection plate is preferably dimensioned and configured such that the safety factor along substantially most of its length is at least about 1.1 and less than about 1.2. A method for employing strain gages identifies the magnitudes and locations of loads on slender beams using strain gage based methods with application to portable Army bridges.

Abstract: A safety brace for supporting a radar antenna platform movable to an elevated tilted position by a drive shaft having a movable first member and a second member, wherein the first member is movable toward and away from the second member. The safety brace has an elongated cylindrical tube formed of two separable half tubes. Three spaced apart separable coupling brackets are secured to the half tubes across a seam. When the separable brackets are closed, the half tubes are kept in a closed configuration. Two hinged coupling brackets are secured to the half tubes along the opposite seam. Flanges disposed at each of the ends of the elongated tube are configured to abut against the movable first and second members of the drive shaft. The safety brace has gussets secured between the flanges and adjacent outer surface portions of the half tubes. A safety brace system and a method of operating the safety brace are also disclosed.