Working tool and machine for sawing and cutting
US7740012B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 30, 2006 |
| Grant date | Jun 22, 2010 |
| Priority date | — |
| Expiry date | Jan 8, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T83/2085
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Working tool and machine for sawing or cutting, comprising an annular blade (2) intended to be rotated about an axis of rotation, encircling the axis of rotation, the annular blade comprising an annular blank (3; 3′) and means (15), e.g. diamond segments (15), forming the working part of the tool and provided in connection to an outer edge (31) of the blank (3; 3′), the blade and blank also having an inner edge (19), an inner edge portion (18) comprising driving surfaces for rotation of the tool about the axis of rotation, and a web portion (23) between the outer edge (31) of the blank and the inner edge (portion) (18), the web portion having a first side (24) and a second side (27). At least two substantially circular guide grooves (21,22; 21′, 22′) are provided in the web portion on its first side, the guide grooves including an inner groove (21; 21′), which is the guide groove that is nearest the inner edge, and an outer groove (22; 22′) which is the guide groove that is nearest the outer edge, the guide grooves being concentric with respect to the axis of rotation, and each guide groove having an inner wall (34, 35; 34′, 35′) on its inner side which faces the inner edge (19) of…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.