Fume extraction apparatus with movable extraction aperture
US10875061B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 9, 2017 |
| Grant date | Dec 29, 2020 |
| Priority date | — |
| Expiry date | Nov 10, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K26/16
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A fume extraction apparatus having an outer conduit with a first elongated open area extending at a first angle and an inner conduit configured for connection to a venting system and received within the outer conduit. The conduits are rotatable relative to one another. The inner conduit has a second elongated open area extending at a second angle different from the first angle. Overlapping portions of the open areas defines an extraction aperture providing a fluid communication between an environment of the outer conduit and an interior of the inner conduit. Different relative orientations of the conduits define different positions of the extraction aperture, so that the extraction aperture is movable upon relative rotation of the inner and outer conduits. A method of extracting fumes during operation of a laser head is also discussed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.