Curved roof hooper car
US4444123A · kind A · utility
12Cited by
8References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 9, 1981 |
| Grant date | Apr 24, 1984 |
| Priority date | — |
| Expiry date | Dec 9, 2001 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB61D17/12
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A railway hopper car includes a curved roof having a roof sheet provided with lateral edges each joined to the top of a car side sheet by a top chord assembly. Each top chord assembly includes a top chord fully disposed within the car interior and having a vertical leg joined to the interior surface of a side sheet while an opposite inclined or angular leg is joined to the interior surface of the roof sheet. A curved cover overlies both top chord legs and forms, with the roof sheet and side sheet, a smooth continuously descending profile from the top centerline of the car roof to each of the car sides.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.