| |
 |
A&A Technologies Patents |
|
Assignee: A&A Technologies
Address: Sioux, IA
No. of patents: 1
Patents:
| Patent Number |
Title Of Patent |
Date Issued |
| 7455242 |
Railway track system |
November 25, 2008 |
| A railway system has a pre-determined profile of contact surfaces between the rail and the wheel rolling along the rail. The length of the contact surface is determined based on the value of the convex-to convex or flat-to-convex contacting running surface of the rail and rolling surface |
|
|
|
