Electrical hand grinder
US5772498A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 14, 1997 |
| Grant date | Jun 30, 1998 |
| Priority date | — |
| Expiry date | Feb 14, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25F5/02
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An electrical hand grinder has a machine housing having a housing axis and composed of two housing shells which are assembled with one another along a separating joint located in a plane of the housing axis, an electric motor having a driven shaft and received in the machine housing, an eccentric pin extending outwardly of the machine housing and driven by the driven shaft of the electric motor, a grinding disk arranged on the eccentric pin and having a lower side for receiving a grinding element, a ventilator wheel for cooling the electric motor, the ventilator wheel and the eccentric pin being formed as sheet metal stamped parts which are assembled with eccentrically oriented axes, one of the sheet metal stamped parts which forms the ventilator wheel being provided with a one-piece sleeve arranged on the driven shaft of the electric motor for joint rotation with the driven shaft.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.