Stator compacted in one piece
US8647091B2 · kind B2 · utility
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2References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 18, 2009 |
| Grant date | Feb 11, 2014 |
| Priority date | — |
| Expiry date | May 20, 2030 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22F2003/033
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A compaction tool is provided for compacting an element from metal powder where the element has uniform axially displaced protrusions, and the tool comprises a die and a top and a bottom punch with punch surfaces. The top and bottom punch comprises displaceable opposing punch surfaces for displacing the metal powder there between before compacting the element. Additionally provided are a method for compacting an element from metal powder and an element made from such a method.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.