Power tool dust collecting device and power tool
US9056379B2 · kind B2 · utility
11Cited by
7References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 6, 2012 |
| Grant date | Jun 16, 2015 |
| Priority date | — |
| Expiry date | Mar 18, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB28D7/02
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
In a power tool dust collecting device, a blocking ring that is subject to elastic deformation upon contact with a workpiece surface for blockage between a suction head and the workpiece surface is provided to the front surface of the suction head to be brought into contact with the workpiece surface. The blocking ring has a ventilating portion (a V-shaped slit) that ensures the flow of air to the suction head regardless of whether the elastic deformation has occurred.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.