Method and apparatus for holding a cutting bit
US5088797A · kind A · utility
104Cited by
10References
28Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 7, 1990 |
| Grant date | Feb 18, 1992 |
| Priority date | — |
| Expiry date | Sep 7, 2010 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21C35/197
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A mining bit holding system is provided which includes a bit holder which attaches to the rotatable drum of a mining machine. The bit holder includes a base portion and a body portion. The body portion has an aperture therethrough to receive a sleeve. The sleeve has an aperture therethrough for rotatably receiving a cutting bit. The sleeve and bit holder are constructed such that the position of the sleeve may be fixed axially with respect to the body portion by an interference fit in such a manner that it may be easily removed from the body portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.