Tongue box for grooved rail points
US6550722B1 · kind B1 · utility
2Cited by
6References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 29, 2002 |
| Grant date | Apr 22, 2003 |
| Priority date | — |
| Expiry date | Mar 29, 2022 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01B9/24
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
In order to enable the use of highly resistant materials difficult to weld or not weldable at all for a stock rail (2), the tongue box for grooved rail switches, which includes a stock rail (2), a slide plate (5) and a side rail (3), whereby the side rail (3) and the slide plate (5) and a base plate (4) are welded together forming a box-shaped section with the stock rail (2), is designed in a manner that the stock rail (2) is connected with the box-shaped profile in a positive and force-transmitting manner by clamping pieces that are welded with the box-shaped section and/or the base plate (4).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.