Protection device for a welder
US9610198B2 · kind B2 · utility
5Cited by
5References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 21, 2015 |
| Grant date | Apr 4, 2017 |
| Priority date | — |
| Expiry date | Sep 21, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2201/44
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A welder protection device comprising a shell and a transparent front cover for protection of a wearer of the welder protection device, and an auto-darkening optical filter. The welder protection device further comprises a retracting mechanism arranged to move the optical filter optical filter from an active position to a retracted position and vice versa. In the active position, the optical filter lies inside the welder protection device and in the wearer's field of view, and in the retracted position the optical filter lies inside the welder protection device and outside the wearer's field of view.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.