Thermal goggle lens assembly with externally vented chamber
US7865977B2 · kind B2 · utility
3Cited by
18References
35Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 19, 2007 |
| Grant date | Jan 11, 2011 |
| Priority date | — |
| Expiry date | Sep 12, 2029 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F9/025
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A sports goggle includes double lens goggles having inner and outer lenses joined at their perimeter by an adhesive, such as silicone, to form an air cavity. A vent is formed on the outer lens to permit equalization of the air cavity with the environment. The vent includes a plug formed of a water impermeable and gas permeable material. An expansion member may insert within the plug to maintain the plug within the vent. In an alternative embodiment, a rivet having air channels formed therein secures a ring of permeable material to the lens.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.