Fastening devices
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United States of America Patent
Stats
-
Oct 10, 1995
Issued Date -
N/A
app pub date -
Nov 24, 1993
filing date -
Mar 31, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Fastening devices such as washers, seals and drive pins subject to corrosive deterioration of all or select portions thereof wherein all or such select portions are protected from such corrosion and failure by a thin coating or coatings of hard surface material or materials. In a preferred form, the fastening device is coated with a synthetic diamond material formed as a thin layer in situ thereon. In addition to preventing moisture and other corrosive material from penetrating to the base metal, such synthetic diamond material serves to preserve the surface integrity of the fastening device preventing the formation or spread of surface flaws produced during use or during the fabrication of the fastening device.
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