Abstract: A game board device for directing body movements in games, exercise, or physical therapy. It employs a support frame of side-by-side modular units of relatively the same size and shape supporting a continuous matrix of contact surfaces supported in a common plane. The contact surfaces in the adjacent frames are arranged in a coordinated matrix of adjacent surfaces that are illuminatable in various colors. The contact surfaces are illuminated normally one at a time so as to cue sequential steps in a random pattern and at varying speeds in a game or predetermined patterns and adjustable speeds in exercise or therapy. Control of the sequential illumination may be manually or by a program by manually operated device or by computer. It is preferred that the individual frames be hindged to permit folding for storage and transportation.

Abstract: The invention is directed to apparatus and a method of playing a skill game, conducting exercise, or learning movements such as dance steps. Ordinarily, it would be used for contact by the feet, but it could be used for contact by the hands, particularly in connection with physical therapy activity or the like. The contact surfaces are arranged in a coordinated pattern that may consist of a matrix of adjacent colored illuminatable tiles or simply stepping stones positioned in a random array perhaps quite different from a regular matrix. The contact surfaces are illuminated normally one at a time so as to cue sequential steps in a random pattern and at varying speeds in a game. Changes may also be made in a regular repeatable pattern with predetermined timing rhythms of a dance or may be made variable so that they may be slowed or quickened in therapy as the patient progresses.

Abstract: Tools for finishing joints at flat surfaces or corners of wallboard walls after adhesive and tape have been applied are attached to the applicator tool by a rotatable yoke connection near the roller of the applicator so that the finishing tool will follow the applicator tool. The finishing tool includes a roller rotatable about an axle for embedding tape into the adhesive. Frame structure rotatably supported on the roller axle is provided with trowel means having a working surface moving parallel to the wallboard surface and placed close to the roller, at least on the sides, to spread adhesive pressed from under the tape back over the tape. Finishing means attached to the frame structure to follow the trowel collects the excess adhesive and distributes it in a smooth surface generally in the plane of the wallboard, filling in any voids left by trowel action. A cylindrical roller is used for joints in flat wallboard.

Abstract: A water jet propulsion unit having a housing, a drive shaft, an impeller for mounting on the drive shaft, and a thrust bearing for supporting the drive shaft in the housing. The propulsion unit further includes a shaft seal unit for the shaft, with the housing having a forward end and a rear end, a bore with a longitudinal axis for slidingly receiving the shaft seal unit form the rear of the housing, with the shaft seal unit and the bearing carried on the shaft, a shoulder for preventing forward movement of the bearing in the bore along the axis beyond a predetermined position, and a lateral opening for access through the housing to the shaft seal unit, and a retainer moveable through the lateral opening for engagement with the shaft seal unit and the housing for limiting rearward movement of the shaft seal unit in the bore.

Abstract: A sanding tool for use on joints of wallboards or other flat surfaces. The tool may interact with other standard sanding tools or may be used independently. A flat base is provided with fasteners to secure an abrasive material and a standard sanding tool to the base. The tool provides an extra-large sanding surface and a re-enforced base for improved and more efficient sanding.

Abstract: A tire chain assembly is provided with a quick connecting male and female fastener for easily securing together the inner circumferential chain on the inner side of the tire without the need for elevating the tire. The outer circumferential chain on the outer side of the tire is provided with a toggle type fastener for securing together the ends of the outer circumferential chain and tightening the outer circumferential chain abut the tire.