Abstract: A paver system is made up of a plurality of pavers. The pavers are adhered onto a grid, and a handle is attached to the grid to enable the system to be carried by an installer. The grid onto which the pavers are adhered may be flexible. There may be a plurality of handles, and the handles may be connected by a band fastener. A paver installation may have a prearranged pattern using multiple paving systems.

Abstract: A method for selecting proportions of aggregate for incorporation into concrete comprises several steps. First, a maximum aggregate size for a specific application is determined. A sample of the maximum size aggregate is loose poured into a container. The percentage voids in that sample is then calculated. An amount of smaller sized aggregate equal to approximately the volume of percentage voids calculated earlier is added to the sample until a reduced volume of voids in the mixed sample is achieved. Finally, the amounts of aggregate determined to have the reduced volume of voids in the mixed sample are used in a concrete mixture.

Abstract: An orthotic device has first and second, elongated support members. The support members are pivotally connected at their respective proximal ends. The device further includes a tensioning member and a tensioning member retainer at the distal end of the first member. There are also first and second pairs of guides, each pair adapted to receive the tensioning member. Whereby the device may facilitate movement of a limb into either a flexed or extended position by placing the tensioning member in the first or second pair of guides respectively.

Abstract: A coupling for a blender comprises first and second clutches. The first clutch is connected to a blender motor and is adapted to be rotatably driven by operation of the motor. The second clutch is connected to a rotatable cutter assembly inside a blender jar. The first and second clutches each comprise a plurality of teeth, and each tooth comprises a drive face. Each drive face has a negative draft.

Abstract: A sensor for biopotential measurements is designed to detect low voltage electrical signals on a subject's skin surface. A plurality of soft elastomeric bristles are arranged about the surface of the skin. Various bristles contain a wick, made of polyolefin, polyester or nylon, extending along its center axis with one end protruding from the bristle and another end in contact with a fluid reservoir. The wick is saturated with an electrically conductive liquid, such as a salt solution. The solution may contain a surfactant. The rheological properties of the electrically conductive liquid are optimized for predictable flow through the wick onto the skin surface. An electrode is positioned in the vicinity of the wick and the reservoir. Alternatively, a sensor comprises a plurality of hollow, soft elastomeric bristles filled with a hydrogel. An electrically conductive cap provides the electrical contact between the hydrogel and the electrical circuit.

Abstract: A test slide is designed for use in a vision testing apparatus. The test slide comprises several component layers. Those layers include a light diffusing layer, an optotype film layer, a color correcting film layer, a frame separator, and a clear glass layer wherein the components are laminated together in the order identified.

Abstract: A continuous palette assembly includes a frame, a windup roller, a feed roller, and paper. The frame has a palette surface and a feed chamber adapted to carry the feed roller, the feed chamber being open to the palette surface. The windup roller is mounted onto the frame so that the windup roller is free to move rotationally. The feed roller and windup roller are each adapted to have paper rolled around them, wherein paper unrolled from the feed roller passes across the palette surface and is rolled up around the windup roller.

Abstract: An adjustable easel is described that may be used by multiple persons and that may be modified according to the preferences of a user. The easel includes a plurality of vertical supports connected to each other. Holes are spaced apart along the length of the side edges of the vertical supports wherein each hole has a horizontal bore with the bore open to an edge of the vertical support. Horizontal support rods are adapted to slide in and out of the holes. Holders retain in place an artistic substrate wherein each holder is attached to at least one horizontal support rod.

Abstract: A combination mouse pad and computer disk holder includes a pad which comprises a body having a top surface and a bottom surface joined by an edge of a selected thickness. The pad further has a pocket therein of dimension sufficient to receive a computer disk. Preferably, the pocket is open to the edge of the pad to allow access to a computer disk that may be stored in the pad.

Abstract: A reversible road scraper has two-edged blades that allow the scraper to be pulled in two different directions. The blades can be mounted on springs so that the scraper will not hang up on any objects that could potentially damage the scraper. Also, the scraper may include an edger blade to trim and define the edge of a road.

Abstract: A portable cooler caddy includes a cup holder panel. The cooler caddy has a frame and a platform on which is carried a cooler. The platform may further include a support to hold the cooler level when the caddy is in the upright position. The cup holder panel may be releaseably locked into the horizontal position. The cup holder panel has apertures that hold cups that may be used.