Miniature motor
US4107559A · kind A · utility
27Cited by
11References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 15, 1976 |
| Grant date | Aug 15, 1978 |
| Priority date | — |
| Expiry date | Nov 15, 1996 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K7/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A miniature two-phase stepping motor includes sheet metal punched or stamped pole pieces and electrical coil assemblies having injection molded coil forms. The coil forms are provided with alignment bosses or protuberances which extend through pilot openings formed in the sheet metal poles to assure and maintain accurate alignment of the poles and the motor sections. The motor bearings are similarly supported and piloted on alignment pins formed on the coil forms.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.