Method of compressing molding sand using independently controlled gas guiding pipes
US6253827A · kind A · utility
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5Claims
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Key dates
| Filing date | Apr 30, 1999 |
| Grant date | Jul 3, 2001 |
| Priority date | — |
| Expiry date | Apr 30, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22C15/28
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method of compacting molding sand by using separated and independently controlled gas guiding pipes that are arranged over horizontally spaced locations of the entire surface of the molding sand. This enables independent compression of different features within the mold model and minimizes the energy consumed for compressing molding sand.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.