Dive mask
US5860168A · kind A · utility
17Cited by
3References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 13, 1997 |
| Grant date | Jan 19, 1999 |
| Priority date | — |
| Expiry date | Jun 13, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB63C11/12
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A dive mask having a drain and deflector flow guide soft skirt. The flexible skirt has a built-in purge valve and a nose compression recess on each side of a nose enclosure. The skirt thus exhausts and deflects exhaled bubbles away from the diver's line of vision. The two recesses permit one-handed finger access to permit the diver to squeeze his or her nostrils together to permit the diver to equalize ear pressure with the water pressure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.