Electric motor
US4504754A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 28, 1982 |
| Grant date | Mar 12, 1985 |
| Priority date | — |
| Expiry date | Sep 28, 2002 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K5/1672
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electric motor comprising a casing, a stator mounted in the casing, a rotor, and end members rotatably mounting the rotor with respect to the stator. At least one of the end members is cast and comprising an integral hub a plurality of radially inwardly extending portions from the inner surface of the hub defining a bearing seat and a plurality of axially extending ribs on the inner surface of the hub having slots machined therein defining a surface in each rib that is accurately spaced axially with respect to the seat. A substantially flat spring member is positioned so that its annular periphery engages the surfaces. The spring member has radially inwardly extending fingers engaging the bearing in the seat.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.