Fastening devices

Details Fastening devices Fastening devices

1992-03-10

1994-07-26

Wilson, Neill R.

Expanded, threaded, driven, headed, tool-deformed, or locked-thr

Internally threaded fastener element, e.g., nut, etc.

411157, 411544, 411902, F16B 3700, F16B 4302, B01J 306

Patent

active

053323483

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.

REFERENCES:
patent: 3099083 (1963-07-01), Delong
patent: 3361448 (1968-01-01), Warrington
patent: 4005163 (1977-01-01), Bokros
patent: 4214037 (1980-07-01), Galasso et al.
patent: 4554208 (1985-11-01), MacIver et al.
patent: 4663183 (1987-05-01), Ovshinsky et al.
patent: 4802807 (1989-02-01), Offenburger et al.
patent: 4882138 (1989-11-01), Pinneo

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