Patents Assigned to Surface Technology Corporation
  • Abrasion resistant filament wear guides and method of making same
    Patent number: 4062484
    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 nitrided. Such nitriding is accomplished thermally. Resulting chromium nitride surface layer is non-particulate and substantially impervious.
    Type: Grant
    Filed: August 13, 1975
    Date of Patent: December 13, 1977
    Assignee: Surface Technology Corporation
    Inventors: John J. Rausch, Ray J. Van Thyne
  • Wear resistant filament wear guides and method of making the same
    Patent number: 4043623
    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.
    Type: Grant
    Filed: August 22, 1975
    Date of Patent: August 23, 1977
    Assignee: Surface Technology Corporation
    Inventors: John J. Rausch, Ray J. Van Thyne
  • Nitrided materials
    Patent number: 4026730
    Abstract: Nitrided cutting tool materials having excellent wear and abrasion resistance. Such materials consist essentially of an alloy base of (a) one or more metals of the group columbium and vanadium and sometimes tantalum; (b) hafnium; (c) one or more metals of the group molybdenum, tungsten, rhenium and chromium; and (d) optionally titanium and/or zirconium, all in amounts by weight as are set out in this specification. These alloys are formable to shape and are then nitrided to produce a nitrided gradient in a high hardness surface zone.
    Type: Grant
    Filed: November 20, 1974
    Date of Patent: May 31, 1977
    Assignee: Surface Technology Corporation
    Inventors: Ray J. Van Thyne, John J. Rausch