Integral Cast Patents (Class 295/27)
  • Patent number: 8944482
    Abstract: A cast steel railway wheel includes a hub that has an axial bore. A rim is concentric with the bore. A plate extends substantially radially from the hub to the rim. The plate has a front face and a rear face. The plate has a plurality of spokes that extend between the hub and the rim. Adjacent spokes have different thicknesses defined between the front face and the rear face.
    Type: Grant
    Filed: January 31, 2012
    Date of Patent: February 3, 2015
    Assignee: Amsted Rail Company, Inc.
    Inventor: Jon Schumacher
  • Publication number: 20130193705
    Abstract: A cast steel railway wheel includes a hub that has an axial bore. A rim is concentric with the bore. A plate extends substantially radially from the hub to the rim. The plate has a front face and a rear face. The plate has a plurality of spokes that extend between the hub and the rim. Adjacent spokes have different thicknesses defined between the front face and the rear face.
    Type: Application
    Filed: January 31, 2012
    Publication date: August 1, 2013
    Applicant: AMSTED RAIL COMPANY, INC.
    Inventor: JON SCHUMACHER
  • Patent number: 4471990
    Abstract: A railroad car wheel is designed to have an amount of displacement of 40 mm or larger, this amount being the amount of displacement of a rim portion relative to a boss portion of the wheel which is the distance between two lines perpendicular to the axis of the wheel, one from the midpoint of the thickness of a plate portion adjacent to ends of curves of the rim fillets and the other from the midpoint of thickness of the plate portion adjacent to ends of curves of the boss fillets.
    Type: Grant
    Filed: December 30, 1982
    Date of Patent: September 18, 1984
    Assignee: Sumitomo Metal Industries, Ltd.
    Inventors: Kenji Hirakawa, Haruo Sakamoto, Shigeru Suzuki, Shigeo Sugawara
  • Patent number: 4307910
    Abstract: A lightweight wheel and axle assembly that reduces unsprung weight thereby improving the ride. The assembly also diminishes hunting and reduces tendencies towards unstable dynamic conditions. The wheel and axle assembly is easily adaptable to conventional three-piece trucks as well as to other truck designs.
    Type: Grant
    Filed: April 4, 1980
    Date of Patent: December 29, 1981
    Assignee: Pullman Incorporated
    Inventor: Eschenburg Rodney
  • Patent number: 4145079
    Abstract: A railroad car wheel having an annular hub for connection to an axle and defining an inner radial surface adapted for disposition in facing relating to the inner surface of a wheel on the opposite end of the axle and an outboard radial surface facing outwardly of the wheel, an annular tread defining rim portion disposed generally concentrically of the hub and defining an inner radial surface adapted for disposition in facing relation to the inner surface of a wheel on the opposite end of the axle and an outboard radial surface facing outwardly of the wheel, the rim portion being displaced axially outwardly with respect to the hub and including an outer, generally cylindrical rail engaging surface provided with radially extending flange adjacent the inner radial surface, and an integral annular plate portion connecting the rim and hub, the plate having a relatively thin cross section and being generally frusto-conical defining inboard and outboard conical surfaces, the plate joining the hub adjacent the inner
    Type: Grant
    Filed: May 20, 1977
    Date of Patent: March 20, 1979
    Assignee: Trailer Train Company
    Inventors: Lawrence P. Greenfield, George E. Novak, Daniel H. Stone