Abstract: A folding trauma stretcher (10) having two rectangular frame assemblies (11 and 12) hingedly mounted together and supported by four legs pivotally mounted to the frame members, wherein the frame members are adapted to fold inward into a compact configuration for storage. The stretcher (10) includes a support structure for securing the stretcher in an open, unfolded position, the structure including brace arms (74 and 75) for preventing the legs from pivoting with respect to the frame assemblies and a stop plate (52) and locking means (87) for preventing the frame members from pivoting with respect to each other.

Abstract: A exercising treadmill (10) having a running platform (28) over which a treadmill belt (30) advances for walking or running thereon including a cam mechanism for adjusting the slope of the running platform (28) and an electric motor (32) for adjusting the driven speed of the treadmill belt. The exercising treadmill (10) also includes a video monitor (65) and a video tape player (66) for displaying an image of an exercising environment. Means are provided for controlling the speed of the treadmill belt (30) and slope of the running surface (28) and for synchronizing said speed and slope of the belt (30) with the speed at which the terrain of the displayed image moves and the slope of the terrain of the displayed image. Thus, the machine can be preprogrammed and fed into the control system and a video image of a race course, for example, can be displayed on the video screen synchronized with the control of the grade of the platform.

Abstract: An emergency hand truck for removing injured athletes from a playing field has an approximately horizontally extending frame and a bed suspended from the frame, with a portion of the bed sloped upwardly from the rear to the approximate center of the truck to support the buttock and thighs of a person and sloped downwardly from the approximate center to the front of the truck to support the calves and feet of a person. Wheels are provided to support the truck at the front and rear, the front wheels being swiveled for steering the truck. A back support is pivotably mounted to the rear of the frame and is movable between a horizontal attitude lying over the bed to a sloped position for supporting the abdomen of a person in an inclined position.

Abstract: An emergency hand truck for evacuating injured or wounded personnel has an elongated frame to which are mounted wheels, and litter support means is mounted approximately at each corner of the frame. The litter support means is adapted to receive the handles of a stretcher or body board, and has a curved surface adapted to support a Stokes basket type of litter.