Face shield detachably mounted to spectacles
US5247706A · kind A · utility
Inventor
Key dates
| Filing date | Jul 30, 1992 |
| Grant date | Sep 28, 1993 |
| Priority date | — |
| Expiry date | Jul 30, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C11/00
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A face shield assembly is releasably attached to a pair of spectacles and is adjustable so that it may be placed close to or away from the wearer's face. It is lockable into each position of adjustment. Multiple apertures are formed in a clear or tinted lens, just below its uppermost edge, and these apertures press fittingly receive posts that are formed along the length of a flexible base member that conforms to the contour of the wearer's head so that the lens depends from the base member. The opposite ends of the lens are retained in detent members formed in the opposite ends of the base member, and a horizontal top shield extends from the base member to the wearer's forehead.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.