Freight car yoke molding apparatus and method
US8627875B1 · kind B1 · utility
3Cited by
5References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 16, 2009 |
| Grant date | Jan 14, 2014 |
| Priority date | — |
| Expiry date | Jul 4, 2030 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22C9/10
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
This invention teaches an improved apparatus and method to make metal alloy castings, such as freight car yokes. One embodiment of the invention comprises a core mold assembly unit, wherein the mold unit is filled with molten metal. The core mold assembly units may be further formed of the same material, such as phenolic urethane impregnated sand, which is used to accurately replicate the desired shape of a final desired product.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.