Ballast discharge system
US6758147B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 25, 2001 |
| Grant date | Jul 6, 2004 |
| Priority date | — |
| Expiry date | Jul 25, 2021 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01B27/022
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A cargo discharge railcar for comprising a generally rectangular base structure, a plurality of walls coupled to the base structure defining an enclosure for carrying cargo, a hopper portion coupled to the base structure, a discharge gate coupled to the hopper portion, a control system coupled to the discharge gate for opening and closing the discharge gate, a central processing unit for controlling the control system, and a global positioning system receiver electrically coupled to the central processing unit for receiving longitude and latitude data from a global positioning system transmitter orbiting the Earth. The discharge gate is adapted to be selectively opened and closed based in part upon the longitude and latitude of the cargo discharge railcar.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.