Cutting bit holder sleeve with retaining flange
US5303984A · kind A · utility
109Cited by
9References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 22, 1993 |
| Grant date | Apr 19, 1994 |
| Priority date | — |
| Expiry date | Jan 22, 2013 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21C35/197
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A bit holder for a cutting tool utilizes a non-rotatable sleeve which is slit its entire length axially and is force-fitted into the bore of the bit holder. The sleeve is removable in the field and provides protection for the bit holder. In an alternate embodiment the sleeve is provided with additional retaining means in the form of a circumferential flange which extends beyond the bit holder and contacts the rearmost portion thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.