Dust collecting device for a roof tool
US8881847B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 27, 2011 |
| Grant date | Nov 11, 2014 |
| Priority date | — |
| Expiry date | Mar 22, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T408/50
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A dust collecting device disposed circumferentially around a roof tool and in association with a roof drill bit and slidable thereon for collecting and removing dust generated during a dry drilling operation. The dust collecting device comprises a cylinder member, a bushing, and a mounting assembly comprising a top washer, a rubber insert, and a bottom washer. Another aspect of the invention provides a dust collecting device comprising a cylinder member, a bushing, and a mounting assembly comprising a disk and clips. The rubber insert and the clips resist movement of the dust collecting device along the drill steel of the roof tool during the drilling operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.