Ventilated safety goggles
US4149276A · kind A · utility
22Cited by
5References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 3, 1978 |
| Grant date | Apr 17, 1979 |
| Priority date | — |
| Expiry date | Apr 3, 1998 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F9/028
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A cartridge type safety goggle for welding is disclosed having an improved ventilation system. A cover plate, gasket, filter plate and retaining spring are held in a cartridge, which is adapted to be inserted into a goggle body. A plurality of ventilating holes on the top and bottom of both the goggle body and the cartridge combine with a plurality of tabs on the cartridge to provide an air flow path which provides improved ventilation for the inside surface of the filter plate and yet prevent objectionable light from entering the interior of the goggle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.