Cutting tool retention apparatuses
US7618098B2 · kind B2 · utility
5Cited by
76References
19Claims
0Family size
Inventor
Key dates
| Filing date | Aug 30, 2007 |
| Grant date | Nov 17, 2009 |
| Priority date | — |
| Expiry date | Aug 30, 2027 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21C35/197
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Cutting tool assemblies and retention sleeves. The assemblies may include a support member that has a sleeve-receiving hole therethrough and a cutting tool that has an elongated shank. Various configurations of sleeve segments are disclosed for non-rotatably supporting the elongated shank of the cutting bit in the support member. Such sleeve segment embodiments may be provided with a plurality of axially extending notches to establish segments of various degrees of interference fit between the sleeve and the support member when seated in the sleeve-receiving hole of the support member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.