Surgery – Respiratory method or device – Underwater exhalation dispersing means
Patent
1995-02-28
1996-01-02
Yan, Ren
Surgery
Respiratory method or device
Underwater exhalation dispersing means
2428, 2439, 2442, A61F 902
Patent
active
054799171
ABSTRACT:
The present invention is related to a structure of diving mask wherein a nose notch is formed on the soft skirt of diving mask, a nose slot is provided in a corresponding position on the mask frame can nest the nose notch, a plurality of frame slots are provided around the outer periphery of nose slot to fix a hard nose cover, the bottom of nose cover is provided with a drain valve to drain the water accumulated in the diving mask; and one each flowguide hole is provided on the two sides of nose slot, a flowguide cover covers the exterior of the nose cover and flowguide holes, a flowguide passage is fromed between the interior of flowguide cover and the flowguide holes, so the accumulated water drained out of the drain valve on the nose cover can be guided to flow out to the exterior of the two sides of diving mask through the flowguide holes on the two sides of nose slot in order to avoid disturbing the diver's vision.
REFERENCES:
patent: 2372824 (1945-04-01), Kish
patent: 2435653 (1948-02-01), Maurer
patent: 2792000 (1957-05-01), Richardson
patent: 4846170 (1989-07-01), McAnalley et al.
patent: 4856120 (1989-08-01), Hart
patent: 5329643 (1994-07-01), Sato
Raciti Eric P.
Yan Ren
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