Floor grinding apparatus having dust sealing rings
US11179825B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 26, 2018 |
| Grant date | Nov 23, 2021 |
| Priority date | — |
| Expiry date | Jul 2, 2040 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB24B23/028
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
The present invention relates to a floor grinding apparatus (100) with a housing (110) having an interior space (111) open to one side, a carrier plate (120) rotatably mounted in the interior space (111) for receiving abrasives, and drive unit (130) adapted to rotate the carrier plate (120), the housing (110) having an inner dust sealing ring (112) with at least one recess (115), wherein the inner dust sealing ring (112) divides the interior space (111) into an inner portion (113) and an outer portion (114), and wherein the carrier plate (120) is disposed in the inner portion (114), at least one extraction opening (116) disposed in the outer portion (114), and an outer dust sealing ring (117) enclosing the interior space (111), the inner dust sealing ring (112) and the outer dust sealing ring (117) being arranged to define a common working plane parallel to the plane of rotation of the carrier plate (120).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.