Respirator with hinged visor
US6763830B1 · kind B1 · utility
6Cited by
12References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 11, 2003 |
| Grant date | Jul 20, 2004 |
| Priority date | — |
| Expiry date | Apr 11, 2023 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA62B18/08
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A gas mask has a facepiece defining an interior chamber and an opening spanning a front portion of facepiece. An optical panel visor is mounted in the opening in the front portion of the facepiece. A hinge joins opposite sides of the visor along a vertical line for relative rotational movement of the opposite sides of the optical panel and the facepiece with respect to each other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.