Holesaw
US6120221A · kind A · utility
30Cited by
26References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 25, 1999 |
| Grant date | Sep 19, 2000 |
| Priority date | — |
| Expiry date | Aug 25, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T408/8973
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A holesaw includes an arbor for supporting a pilot drill and a bell-shaped sawblade. The sawblade is attached to a lower threaded portion of the arbor. A pin support with at least one pin engages the top of the holesaw blade and is axially movable but not rotationally movable relative to the arbor. A clamping sleeve is threaded onto an upper threaded portion of the arbor. The clamping sleeve can be screwed down to press against the bell top of the sawblade. A spring may be disposed between the clamping sleeve and the pin support.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.