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Transportation Technology Center, Inc. Patents
Assignee:
Transportation Technology Center, Inc.
Address:
Pueblo, CO
No. of patents:
9
Patents:












Patent Number Title Of Patent Date Issued
7871015 Rail joint assembly using embedded load transfer keys and method therefor January 18, 2011
A rail joint assembly joining the ends of two rails together includes a pair of joint bars. Each joint bar having one side configured to the rail web side. Mechanical fasteners mount the joint bars to the web sides. Pairs of load bearing keys are embedded in web counter bores at pred
7591909 Railroad wheel steels having improved resistance to rolling contact fatigue September 22, 2009
Steels having a pearlitic structure and containing 0.65 to 0.80 weight percent carbon, 0.90 to 1.10 weight percent silicon, 0.85 to 1.15 weight percent manganese, 0.001 to 0.030 weight percent phosphorus, 0.009 to 0.013 weight percent niobium, 0.05 to 0.15 nickel, 0.20 to 0.30 weight
7559999 Railroad wheel steels having improved resistance to rolling contact fatigue July 14, 2009
Steels having a pearlitic structure and containing 0.65 to 0.80 weight percent carbon, 0.90 to 1.10 weight percent silicon, 0.85 to 1.15 weight percent manganese, 0.001 to 0.030 weight percent phosphorus, 0.009 to 0.013 weight percent niobium, 0.05 to 0.15 nickel, 0.20 to 0.30 weight
6768298 Transverse crack detection in rail head using low frequency eddy currents July 27, 2004
A method and system for detecting transverse cracks beneath horizontal cracks in the rail way track. As a transporter moves over rail, a saturation magnetic field is generated into and across the rail head using a toroidal-shaped DC saturation magnet located a predetermined distance
6675077 Wheel-railhead force measurement system and method having cross-talk removed January 6, 2004
A system and method for removing cross-talk in measured forces between a railway wheel set and the railhead of underlying track such as found in angle of attack measurements for shallow curvature track. The angle of attack for the leading and trailing sets of wheels in trucks of rail
6632297 Railway wheels resistant to martensite transformation October 14, 2003
Steels having a pearlitic structure and containing 0.60 to 1.0 weight percent carbon, 1.1 to 3.0 weight percent silicon, 0.45 to 0.85 weight percent manganese, less than 0.050 weight percent sulfur and less than 0.050 weight percent phosphorus, with the remainder of said steel being
6387191 Railway wheels resistant to martensite transformation May 14, 2002
Steels having a pearlitic structure and containing 0.60 to 1.0 weight percent carbon, 1.1 to 3.0 weight percent silicon, 0.45 to 0.85 weight percent manganese, less than 0.050 weight percent sulfur and less than 0.050 weight percent phosphorus, with the remainder of said steel being
6381521 Dynamic angle of attack measurement system and method therefor April 30, 2002
A method measures the angle of attack for the leading and trailing sets of wheels in trucks of rail vehicles traveling over track in a wayside system. At a first point on the outside rail of a track vertical force is measured with a first vertical strain gage, lateral force is measured w
6062090 Apparatus and method for determining the strength and type of soil May 16, 2000
A novel method and apparatus for measuring the dynamic loading characteristics of a soil bed is provided. The invention pertains to a method and apparatus for measuring, as a function of time, the resistance to penetration offered by a soil bed as the apparatus is fed into the soil a

 
 
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