Abstract: A footwear liner includes two sides connected at a front seam and a back seam by stitching, an inner bottom piece connected to the two sides along a bottom seam by stitching, and an outer bottom piece adhered to the inner bottom piece. Each side includes an outer layer, an inner layer, and an intermediate layer that is impermeable to water and permeable to vapor. The outer bottom piece includes an outer layer and an inner layer that is impermeable to water and permeable to vapor. The two sides and the inner bottom piece cooperate to form a partial enclosure with a toe portion, a heel portion, and an open top portion. In the preferred embodiment, the front and back seams are covered by a sealing tape to waterproof the seams, and the outer bottom piece overlaps and is adhered to portions of the sides adjacent the bottom seam to form a waterproof seal between the outer bottom piece and the sides.

Abstract: An automated docking system for space vehicles that includes a plurality of antennas on each of a target vehicle and a chase vehicle. A pseudo random code is transmitted via one of the antennas located on one of the vehicles and received by one of the antennas located on the other vehicle. The pseudo random code is then sent back to the original vehicle via transmissions from the plurality of antennas on the second vehicle and received by the plurality of antennas on the original vehicle. The distance from each of the antennas on the other vehicle to each of the antennas on the originating vehicle can be measured in this fashion. The antennas on each of the vehicles are located in a spaced-apart arrangement so that the angular orientation or attitude of each of the vehicles to each other can also be determined. A plurality of video cameras is provided on the exterior of one of the vehicles and video information from these cameras is transmitted to the other vehicle for display to operators in that vehicle.

Abstract: A footwear liner includes two sides connected at a front seam and a back seam by stitching, an inner bottom piece connected to the two sides along a bottom seam by stitching, and an outer bottom piece adhered to the inner bottom piece. Each side includes an outer layer, an inner layer, and an intermediate layer that is impermeable to water and permeable to vapor. The outer bottom piece includes an outer layer and an inner layer that is impermeable to water and permeable to vapor. The two sides and the inner bottom piece cooperate to form a partial enclosure with a toe portion, a heel portion, and an open top portion. In the preferred embodiment, the front and back seams are covered by a sealing tape to waterproof the seams, and the outer bottom piece overlaps and is adhered to portions of the sides adjacent the bottom seam to form a waterproof seal between the outer bottom piece and the sides.

Abstract: A footwear liner includes two sides connected at a front seam and a back seam by stitching, an inner bottom piece connected to the two sides along a bottom seam by stitching, and an outer bottom piece adhered to the inner bottom piece. Each side includes an outer layer, an inner layer, and an intermediate layer that is impermeable to water and permeable to vapor. The outer bottom piece includes an outer layer and an inner layer that is impermeable to water and permeable to vapor. The two sides and the inner bottom piece cooperate to form a partial enclosure with a toe portion, a heel portion, and an open top portion. In the preferred embodiment, the front and back seams are covered by a sealing tape to waterproof the seams, and the outer bottom piece overlaps and is adhered to portions of the sides adjacent the bottom seam to form a waterproof seal between the outer bottom piece and the sides.