Face mask for diving
US7134149B2 · kind B2 · utility
13Cited by
4References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 16, 2003 |
| Grant date | Nov 14, 2006 |
| Priority date | — |
| Expiry date | May 1, 2024 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB63C11/12
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Here is disclosed a face mask provided with a rotation angle regulating means for stepwise variation of an angle of each buckle relative to associated lens frame side wall. A buckle is rotatably attached to the lens frame side wall of the face mask and the lens frame side wall and the buckle are formed with the rotation angle regulating means comprising one or more protrusions and depressions adapted to be releasably brought into mutual engagement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.