Abstract: An improved energy-storing artificial foot, connectable onto a lower end of an artificial leg worn by a leg amputee, includes a ball of foot part, a main foot part, and an ankle part. The artificial foot includes first and second transversely positioned pivotal axes that are spaced longitudinally from one another. The first axis, carried in the ankle part, is positioned in vertical alignment with a longitudinal axis of an artificial leg, is about four times higher from a ground surface than is the second axis, and is positioned 78% of the length of the artificial foot as measured from the forward end of the foot. The second axis is positioned in the ball of the foot region of the artificial foot, which is about a third of the length of the foot as measured from a forward end of the foot. A pair of vertically disposed compression springs flank the first axis to simulate muscles that support an ankle.

Abstract: An electric drill powered paint stirrer for stirring paint in a conventional paint marketing can of the kind normally closed for sale by a lid. A second lid is substitutable on the can for the marketing lid and has a central opening. A stirring rod assembly is releasably securable in the second lid. The assembly comprises a bushing element having a reduced diameter externally threaded and extending from a shoulder. The bushing has a central through bore. The second lid opening is of diameter to snugly receive the threaded bushing end therethrough but not the shoulder. The assembly further includes a stirring rod having an upstanding shank extending upward through the bushing. The rod has upper and lower radially widened portions closely flanking the upper and lower ends of the bushing for axially locating the shank in the bushing. The rod has a bottom portion depending from the shank and sized to lie close to the can peripheral wall and bottom for stirring paint in the marketing can.