Cutlery – Blades – Razor blade
Reexamination Certificate
2006-11-28
2006-11-28
Payer, Hwei-Siu (Department: 3724)
Cutlery
Blades
Razor blade
C030S350000, C076S104100
Reexamination Certificate
active
07140113
ABSTRACT:
A blade of ceramic material is treated to enhance the strength and sharpness of the cutting edge. In one embodiment, ceramic particles along at least one margin of an edge-forming face are fused, such as by a laser treatment. The edge mardin can have a hard ceramic coating of a different ceramic material such as a nitride of chromium, zirconium, titanium, titanium carbon or boron. The hard ceramic coating can be used alone or in conjunction with the laser treatment. The invention includes the methods of treating the edge, both to form the hard ceramic coating and to fuse the particles by scanning with laser, such as an ultraviolet laser.
REFERENCES:
patent: 3349488 (1967-10-01), Craig
patent: 3514856 (1970-06-01), Camp et al.
patent: 3543402 (1970-12-01), Seager
patent: 3926601 (1975-12-01), Hicks, Jr.
patent: 3977061 (1976-08-01), Lindstrom et al.
patent: 4078338 (1978-03-01), Baughcom
patent: 4201599 (1980-05-01), Morgans
patent: 4330576 (1982-05-01), Dodd
patent: 4495698 (1985-01-01), Gerber, Jr.
patent: 4718200 (1988-01-01), Miquelot
patent: 4741973 (1988-05-01), Condit et al.
patent: 4787146 (1988-11-01), Gaskins
patent: 5018271 (1991-05-01), Bailey et al.
patent: 5077901 (1992-01-01), Warner et al.
patent: 5528833 (1996-06-01), Sakuma
patent: 6076264 (2000-06-01), Meckel
patent: 6090108 (2000-07-01), McBrayer et al.
patent: 6151786 (2000-11-01), Hellstern
patent: 6192591 (2001-02-01), Hellstern
patent: 6555180 (2003-04-01), Hofmeister et al.
Page 78 of Jensen 1987-1988 Catalog, Jensen Tools, Inc., an AXIA Enterprise, located at 7815 S. 46th Street, Phoenix, Arizona 85044-5399.
Crawford Theodore C.
King Rodney L.
Carpenter John W.
Henson Michael R.
LazorBlades, Inc.
Martin Timothy J.
Payer Hwei-Siu
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