Apparatus and method for manufacturing field-pole magnet
US10583579B2 · kind B2 · utility
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Key dates
| Filing date | Sep 20, 2012 |
| Grant date | Mar 10, 2020 |
| Priority date | — |
| Expiry date | Nov 21, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T225/386
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A field-pole magnet manufacturing apparatus fractures a magnet fixed on a die serving as a lower tool by causing a punch of an upper tool to press the magnet while in contact with the magnet. At least one projection is formed in the punch of the upper tool symmetrically with respect to the central position of the magnet in the width direction of the magnet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.