Cutlery
Patent
1975-08-22
1977-08-23
Goodman, Philip
Cutlery
242157R, 308241, F16C 2700
Patent
active
040436233
ABSTRACT:
Filament wear guides which are characterized by excellent resistance to abrasive filament wear. Also, the method of their fabrication. A chromium surface on a substrate is controllably oxidized or nitrided and oxidized. Such oxidation or nitriding plus oxidizing is accomplished thermally. The coatings consist of oxide alone, or oxide formed in conjunction with the nitride depending upon the treatment employed. Resulting chromium oxide or oxy-nitride surface layer is nonparticulate and substantially impervious.
REFERENCES:
patent: 3080134 (1963-03-01), England et al.
patent: 3080135 (1963-03-01), Steijn
patent: 3086722 (1963-04-01), Altice et al.
patent: 3787229 (1974-01-01), Rudness
Rausch John J.
Van Thyne Ray J.
Church Gene A.
Goodman Philip
Siegel Albert
Surface Technology Corporation
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