Dust collection shroud for hand held power tools
US5527207A · kind A · utility
Inventors
Key dates
| Filing date | Jun 27, 1994 |
| Grant date | Jun 18, 1996 |
| Priority date | — |
| Expiry date | Jun 27, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB24B55/102
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A dust collecting device connectable to a hand held power sanding and/or grinding tool for dislodging, retention and collection of dust particles created by the abrasive process by the power tool. The device includes a flat disc-shaped shroud top having central aperture means formed therethrough for fastener connection to, and output shaft clearance of, the power tool. An upwardly facing exhaust port is also connected to the shroud top for attachment to a vacuum source for collecting particles dislodged by the abrasive process from a work surface. The device also includes a circular brush member defining a somewhat flexible skirt formed of densely spaced bristles dependently extending generally orthogonally from one surface of the shroud top immediately adjacent its circular perimeter. The skirt encircles and encloses a rotating or oscillating abrasive pad connected to the output shaft of the power tool. A flexible plastic stiffener is embedded within the bristles of the skirt to provide support for the power tool and to define an enclosure in cooperation with the work surface and the shroud top to surround the abrasive pad. The stiffener extends only part way from the shroud top t…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.