Railcar coupler knuckle cores with rear core support
US8746474B2 · kind B2 · utility
2Cited by
21References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 20, 2011 |
| Grant date | Jun 10, 2014 |
| Priority date | — |
| Expiry date | Dec 27, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB61G3/04
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A core assembly for creating interior spaces in a railcar coupler knuckle is designed to be set in a cavity with cope and drag sections. The cavity is shaped to form a railcar coupler knuckle and includes a first wall that forms the substantially vertical outside wall of the tail of the knuckle. The core includes a kidney section with a rear core support section that extends at least 0.5″ outside the first wall of the cavity when the core is set in the drag.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.