Patents Assigned to Columbus Steel Castings Co.
  • Traction pins for railway cars
    Patent number: 6857375
    Abstract: A one-piece, cast traction pin for use with railway cars. The traction pin is used to connect the railcar cab with the railcar truck assembly. The traction pin includes a mounting plate cast integral with the pin, thereby eliminating the use of multiple welded plates. The one-piece cast traction pin is also solid to reduce the potential for stress related failure of the traction pin during normal operation of the railway car.
    Type: Grant
    Filed: May 24, 2001
    Date of Patent: February 22, 2005
    Assignee: Columbus Steel Castings Co.
    Inventors: Bruce A. Milligan, Patrick M. Murphy, Steven R. Pinkstock
  • Cast steel composition for railway components
    Patent number: 6758919
    Abstract: A high strength steel alloy for use in manufacturing railway car components. The alloy has a chemical composition that meets the industry required specifications for B grade steel and exhibits better mechanical properties, such as higher yield and tensile strengths. Secondary benefits of the inventive steel alloy include enhanced weldability and improved fatigue resistance.
    Type: Grant
    Filed: May 29, 2002
    Date of Patent: July 6, 2004
    Assignee: Columbus Steel Castings Co.
    Inventor: Bruce A. Milligan