Abstract: A method of making a grinding shoe involving constructing a sole of high friction material having a downwardly facing high friction surface interrupted medially by an upwardly raised recess having opposite sides curved outwardly to form flares and making a plate to conform to such recess and securing such plate thereto to provide a downwardly facing low friction grind surface.
Abstract: A grinding plate formed on its bottom side with a transverse downwardly facing grind surface disposed medially under the arch and configured on the medial side with a longitudinal medial runner having one radius of curvature and formed on the lateral side with a longitudinally extending runner having a downwardly and outwardly curved surface of a greater radius of curvature. In one aspect, the bearing surface is bifurcated centrally by longitudinal extending groove to form flanking bearing surface segments.
Abstract: An article of athletic footwear with a sole incorporating low friction surfaces for sliding across a protruding feature on a supporting surface and walking surfaces for other athletic pursuits, and a method of making same.
Abstract: A footwear product, such as a rubber boot, has protective plates disposed to prevent the penetration of sharp objects into a wearer's foot. A first rigid protective plate is embedded in the sole, and a second rigid protective plate is disposed to cover an inside side portion of the instep. In combination, the plates prevent penetration of a sharp object into the wearer's foot when the wearer steps on the object.
Abstract: A shoe sole structure in which a metallic stiffener member having generally the form of an elongated plate is encapsulated within a solid body of elastomeric material. The elastomeric material provides a ground-engaging surface underneath the stiffener member, a foot-supporting surface above the stiffener member, and also provides a toe-supporting portion which extends forwardly of the stiffener member and is free to flex vertically as needed.