Method of converting a railcar
US6609284B2 · kind B2 · utility
2Cited by
2References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 6, 2001 |
| Grant date | Aug 26, 2003 |
| Priority date | — |
| Expiry date | Apr 6, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49728
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The present invention relates to a method of converting box car from having a sliding door to having a plug door. In addition, the roof may be removed and the storage capacity within the box car may be increased by raising the roof of the box car and adding extensions to the sides of the box car. Moreover, the door opening may be increased by increasing the height of the roof. Further, the present invention relates to a method of creating a sealing surface around the perimeter of the door opening of the box car wherein the sealing surface is coplanar.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.