US Patent:
20020170558, Nov 21, 2002
Inventors:
Anthony Vinokur - San Francisco CA, US
Galina Levinson - San Francisco CA, US
International Classification:
B63C011/16
B63C011/02
A62B018/10
A62B018/08
US Classification:
128/201110, 128/201270, 128/201280, 128/206290
Abstract:
A snorkel system for allowing an individual snorkeling to dive beneath the water surface without water entering the breather tube. The snorkel system includes a breathing tube having an upper opening, a mouthpiece attached to a lower end of the breathing tube, a housing attached about an upper portion of the breathing tube, and a plurality of apertures within a lower portion of the housing. The upper opening of the breathing tube is positioned a finite distance above the highest of the apertures for creating a pressurized air pocket within the housing that prevents water level from rising above the upper opening thereby preventing water from entering the upper opening when the housing is fully submerged. The plurality of apertures within the lower portion allow the water to escape when the housing is elevated above the water surface and allow for air to immediately enter the housing and therefore the breathing tube thereby allowing the individual to freely breathe.