Collar system for a dust extractor
US11541498B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 16, 2019 |
| Grant date | Jan 3, 2023 |
| Priority date | — |
| Expiry date | Dec 16, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25D2217/0057
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A collar system for a dust extractor is provided including: a collar including a drill passage extending through the collar and an extension forming an internal passage that connects at one end with the drill passage, the extension being attachable to a housing of the dust extractor to enable the internal passage to connect to a suction passage of the dust extractor; and a cover mounted adjacent an entrance of the drill passage, the cover being moveable between a first position where it covers the entrance and a second position where is remote from the entrance, wherein the cover comprises at least hole that passes through the cover.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.