Double-stringer rotary brush
US11618130B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 6, 2020 |
| Grant date | Apr 4, 2023 |
| Priority date | — |
| Expiry date | Sep 14, 2041 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB24B29/005
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A double-stringer rotary brush assembly formed of a pair of brush wire mounting hubs having sets of alternating radially staggered radially innermost and outermost brush wire tuft mounting holes having different hole sizes with brush wire tufts extending radially outwardly therefrom having at least one of (a) different lengths, (b) an offset trim, and/or (c) differently sized knots anchoring the tufts thereto. One hub can be angularly offset relative to the other hub angularly offsetting the holes of one hub relative to the other hub from being concentric. The tufts extending from one of the radially innermost and outermost holes are stiffer than the tufts extending from the other one of the radially innermost and outermost holes imparting to the brush assembly tufts having different surface finishing and abrasive removal characteristics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.