Importance

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Abstract

Improvements in the construction of skis, sleigh runners and the like having extended and improved wear characteristics. In one form a ski is fabricated with lower left and right edging thereof which is subject to wear and dulling during use by frictional attrition defined by a hard synthetic material having the hardness in the range of natural diamond or higher. The hard material may comprise a coating of synthetic diamond formed in situ on a flexible strip of metal or ceramic material by chemical vapor deposition, radiation beam deposition or other means such as lamination sintering. While a single elongated sheet or strip of metal which is entirely or partly coated with a thin layer or film of synthetic diamond may form the bottom layer or lamination of the ski, a plurality of narrower strips of such diamond coated metal may respectively define the lower left and right edge portions of the ski along most of the length of the ski or at least that portion thereof which is subject to frictional attrition during turning movements when skiing. In a particular form of the invention, a metal such as chromium is provided against the synthetic diamond material to protect its outer surface and to serve as a dry lubricant.

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First Claim