Flap wheel
US6592442B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 2, 2001 |
| Grant date | Jul 15, 2003 |
| Priority date | — |
| Expiry date | Apr 18, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB24D13/045
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A flap wheel includes an aluminum hub with outwardly opening peripheral slots. Flap clips also made of aluminum each holding a bundle of flaps fit snugly in the slots. The slots and clips include an elongated socket and knob construction. The socket of the slot and knob of the clip both have an arched or rounded bottom and straight parallel side walls terminating in opposed retaining keys projecting inwardly from the side walls of the slot or corresponding key ways in the clip. The outer ends of the clips include a thin wall U-shape flap bundle retention slot having a flat but skew or slanting bottom wall. The slots extend uniformly in a non-radial direction angled away from the direction of rotation. The flat but skewed bottom of the clips also slants inwardly toward the direction of rotation to position the outer edges of the flaps in the same skewed slanting direction exposing or splaying an outer edge portion of each of the faces or flat surfaces of the flaps to the work as the wheel rotates. The flap bundles may be held in the clips by fasteners or staples extending through the thin walls and the inner ends of the flaps. The entire wheel may be easily refilled, is light weight…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.