Core bit
US7241087B2 · kind B2 · utility
1Cited by
14References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 8, 2003 |
| Grant date | Jul 10, 2007 |
| Priority date | — |
| Expiry date | Sep 13, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T408/895
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
In a core bit formed with a boring blade at a front end thereof and integrally formed with a mounting portion, at a rear end portion thereof, formed with a guide portion in a cylindrical shape mounted to a chuck portion formed at a concrete drill, a ring-like seal member forming a seal between the mounting portion and a side of the chuck portion is formed at the guide portion in the cylindrical shape of the core bit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.