Underwater Breathing Apparatus

摘要

The said invention or apparatus is for users to swim and be totally submerged underwater with an adequate supply of air for extended periods of time. The apparatus is a sealed water resistant enclosure supporting a hollow air intake pipe with and attached hollow air intake sphere mounted on the top. The bottom half of the air intake sphere has many holes to allow air into air intake riser and drain unwanted water out. The apparatus does not require regulators, pressure vessels, diaphragm pumps or compressors, internal combustion engines or external power sources. A low pressure blower and filter assembly with a rechargeable and easily replaceable lithium ion battery are mounted inside the buoyant water resistant enclosure. Air is drawn into the low pressure blower suction and through an air filter delivering constant air flow to the swimmer through an attached flexible air supply hose. The apparatus uses three check valves to constrain air flow supply unidirectional to the swimmer while venting excess air. The apparatus has a hand pump to vacate unwanted water from the mouth piece or mask and draw in purging air while the swimmer is submerged. For stability the apparatus has a designed center of gravity below the meta center of the underwater portion of the buoyant water resistant enclosure giving a positive GM and strong self-righting moment in calm or rough seas. For safety the apparatus has a grab handle and a tether line connection from the bottom of the buoyant water resistant enclosure. The tether line is attached to the swimmer.

主权项

1. A portable underwater breathing apparatus providing an effective alternative to conventional snorkeling equipment, as it would allow an individual to breathe underwater for extended periods of time. Comprising a buoyant water resistant enclosure containing a low pressure air blower and air filter element. Attached to the low pressure air blower output is a flexible hose connected to the interior base of the water resistant enclosure. Attached to the exterior base of the water resistant enclosure is a flexible hose to deliver air to the swimmer. Mounted on the other end of the flexible hose is a mouthpiece or full face mask. Attached to the low pressure air blower inlet is a flexible hose connected to the interior top of the water resistant enclosure. Attached to the exterior top of the water resistant enclosure is an air intake pipe. Mounted on top of the air intake pipe is an air intake sphere. The air intake pipe is attached to the interior top of the air intake sphere with a screen positioned annular and at the top of the air intake pipe. The air intake sphere has air holes in the lower half allowing air in and water to drain out. The weight distribution from the apparatus creates a center of gravity below the Meta center of the underwater portion of the water resistant enclosure.