Hopper cars with one or more discharge control systems
US8915194B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 15, 2010 |
| Grant date | Dec 23, 2014 |
| Priority date | — |
| Expiry date | Dec 9, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB61D7/24
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Hopper cars both open and covered and discharge control systems are disclosed. Each hopper car may include at least one hopper and a center sill which defines in part a longitudinal axis of the hopper car. At least one discharge opening may be formed proximate a lower portion of each hopper. A respective door assembly may be pivotally mounted adjacent to each discharge opening to control the flow of lading from the respective discharge opening. Each discharge control system may include a common linkage and associated secondary linkages operable to move associated door assemblies between a first position and a second position. A power source including a motor, an air cylinder or a hydraulic cylinder may be disposed on the railway car to move the common linkage. For other hopper cars a wayside drive system may be releasably engaged with a capstan operable coupled to the common linkage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.