Protective eyewear including auxiliary lenses
US8104890B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 29, 2010 |
| Grant date | Jan 31, 2012 |
| Priority date | — |
| Expiry date | Nov 29, 2030 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2009/021
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An eyewear assembly includes an outer first frame, at least one outer first lens, an inner second frame, and at least one inner second lens. The assembly includes a mechanism for holding the first frame and first lens in front of a user's face. The second frame has a mechanism for attachment to the first frame, to hold the second frame between the user's eyes and the first lens. The at least one second lens is carried by the second frame. The mechanism for attachment comprises a tab extending vertically on one of the first frame or the second frame and an aperture on the respective other of the first frame or the second frame for receiving said tab. The first frame includes a central elevated vent to distribute air over top vent openings of the first frame. Grip warts are provided on the first frame for gripping and manipulation by the user.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.