Method and system for manufacturing railcar couplers
US8770265B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 28, 2011 |
| Grant date | Jul 8, 2014 |
| Priority date | — |
| Expiry date | Dec 28, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22D25/02
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A casting apparatus for casting a railcar coupler, which includes a shank portion and a head portion, includes cope and drag portions that define an external shape of the coupler. The casting apparatus also includes one or more cores that define an interior of the shank portion and a separate head core with an exterior that defines an interior of the head portion that includes lock chamber, guard arm side portion, and knuckle side portions of the head. The head core is a single piece with a hollow center section that defines a front face gating system that includes at least one in-gate configured to direct molten material to top and bottom regions of the head to define the lock chamber, guard arm side portion, and knuckle side of the head.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.