Hand-held machine tool comprising a dust box
US7475739B2 · kind B2 · utility
12Cited by
12References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 7, 2003 |
| Grant date | Jan 13, 2009 |
| Priority date | — |
| Expiry date | Aug 9, 2024 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23Q11/0046
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A power tool (10) with a housing (12) that includes a dust box (50, 150) and a motor (20) with air cooling, and a cooling exhaust-air duct (44, 46) and a chip suctioning duct (40) which guides a chip-suctioning flow can be used with improved performance and in an environmentally friendlier manner due to the fact that the cooling air flows across the dust box (50, 150) under favorable flow conditions, whereby the evacuation of dust into the dust box (50, 150) is improved and whirls of dust caused by cooling air in the tool region are prevented from forming.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.