Protective mask with removable lens
US7320144B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 9, 2005 |
| Grant date | Jan 22, 2008 |
| Priority date | — |
| Expiry date | Aug 2, 2025 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F9/025
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A protective mask and method, comprising a face mask having a body shaped so as to generally cover a face of the user person. The body defines an opening opposite the eyes of the user person when the face mask is worn. A removable lens has a lens portion of see-through material covering the opening so as to protect the eyes of the user person while allowing visibility of the user person therethrough, and connector portions at opposed ends of the lens portion. Clamping devices are positioned in the face mask at opposed ends of the opening. The clamping devices each have a clip with a catch pivotally mounted to the face mask so as to be displaceable to a locking position, in which the catch engages with the respective connector portion to releasably secure the removable lens to the face mask.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.