Gas goggles
US5046198A · kind A · utility
10Cited by
10References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 21, 1990 |
| Grant date | Sep 10, 1991 |
| Priority date | — |
| Expiry date | May 21, 2010 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F9/025
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention describes goggles for protection against gases having a resilient frame with two eye spaces each surrounding an eye of the user. The eye spaces are surrounded by mounts which hold the lenses in place. In order to obtain a firm fit and the required sealing-tightness between the lenses and the mounts, the surface of the front edge of the mount is formed with a peripheral groove in which a rigid ring is secured. This ring applies pressure to the surface of the front edge of the mount sealingly securing the lens in a recess in the mount.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.