By Casting Patents (Class 295/17)
  • Patent number: 11897281
    Abstract: A wheel includes a boss, a rim, and a web. The rim includes a tread and a flange. The web connects the boss and the rim. When the wheel is viewed in its longitudinal section, the web has a linear plate-thickness center line that is inclined such that the plate-thickness center line approaches the flange side as it extends outward in a radial direction. When the wheel is viewed in its longitudinal section, an outer end of the plate-thickness center line is positioned between the flange and a center of the tread in an axial direction of the wheel.
    Type: Grant
    Filed: May 20, 2020
    Date of Patent: February 13, 2024
    Assignee: NIPPON STEEL CORPORATION
    Inventors: Takanori Kato, Yoshinari Yamamura, Shingo Abe, Jun Noguchi, Ruben De La Prida Caballero
  • Patent number: 6227591
    Abstract: A railroad wheel formed from at least two metallic alloys. In one embodiment, a railroad wheel has a body formed from a first alloy and a rim formed from a second alloy initially in powder form. In an exemplary embodiment, to form the dual alloy wheel the body of the wheel is cast with a circumferential channel formed therein. The perimeter of the body is enveloped with a material, such as sheet metal, to form a cavity defined by the channel and the sheet metal. The second alloy in the form of a powder is placed in the cavity and subjected to heat and pressure to metallurgically weld the first and second alloys and form a composite railroad wheel.
    Type: Grant
    Filed: December 16, 1999
    Date of Patent: May 8, 2001
    Assignee: Ultraclad Corporation
    Inventor: Joseph C. Runkle
  • Patent number: 6073346
    Abstract: A railroad wheel formed from at least two metallic alloys. In one embodiment, a railroad wheel has a body formed from a first alloy and a rim formed from a second alloy initially in powder form. In an exemplary embodiment, to form the dual alloy wheel the body of the wheel is cast with a circumferential channel formed therein. The perimeter of the body is enveloped with a material, such as sheet metal, to form a cavity defined by the channel and the sheet metal. The second alloy in the form of a powder is placed in the cavity and subjected to heat and pressure to metallurgically weld the first and second alloys and form a composite railroad wheel.
    Type: Grant
    Filed: October 7, 1998
    Date of Patent: June 13, 2000
    Assignee: Ultraclad Corporation
    Inventor: Joseph C. Runkle