Rotatable cutting bit and bit washer therefor
US6113195A · kind A · utility
143Cited by
6References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 8, 1998 |
| Grant date | Sep 5, 2000 |
| Priority date | — |
| Expiry date | Oct 8, 2018 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16B43/001
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A cutter tool comprises a tool holder, a cutting bit mounted in a bore of the tool holder, and a washer disposed between the tool holder and the cutting bit. The washer is a conical (Belleville) washer which makes annular line contact with a shoulder of the cutting bit, and with an edge of the bore of the tool holder, in order to effectively seal-out fines from the bore.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.