Cutting tool with water injection to the cutting bit shank
US7883154B2 · kind B2 · utility
3Cited by
12References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 28, 2008 |
| Grant date | Feb 8, 2011 |
| Priority date | — |
| Expiry date | Jul 14, 2029 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21C35/187
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A cutting tool assembly mounted on a rotating drum and having a base block, a wear sleeve and a cutting bit wherein a seal is located between the base block and wear sleeve is disclosed. A fluid passage spans from the rotating drum to a discharge location between the wear sleeve and the shank of the cutting bit. The fluid lubricates the shank of the cutting bit and bore of the wear sleeve allowing the cutting bit to rotate freely within the wear sleeve. Rotation of the cutting bit promotes even wear and long life of the bit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.