Method and apparatus for a railroad crosstie made from used tires
US6708896B2 · kind B2 · utility
11Cited by
14References
24Claims
0Family size
Inventor
Key dates
| Filing date | Jul 30, 2002 |
| Grant date | Mar 23, 2004 |
| Priority date | — |
| Expiry date | Jul 30, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/187
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method and apparatus for a railroad crosstie made from used tires. The tires are cut radially and the sidewalls are removed. Longitudinal and lateral cuts along the inner surface are preferably made to facilitate flattening. Opposing inner surfaces are joined as sets and then stacked and bundled to form a railroad crosstie.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.