The present invention relates to a floatable breathing device. The floatable breathing device provides includes a head unit, a snorkel, a plurality of receiving passageways, and an internal pathway. The head unit has buoyant properties and includes an ornamental shaped buoyant outer material and an inner shell positioned within the buoyant outer material. The inner shell forms a head receiving section and a protruding section. The head receiving section is received internal to the buoyant outer material and is configured to be contoured to a human head, the protruding section extending from the head receiving section to a vent opening in the outer buoyant material. The snorkel is connected to and extending through the head unit, while the plurality of receiving passageways are disposed about the inner shell and receiving the snorkel such that the snorkel extends through and exits a portion of the head unit at the vent opening. The internal pathway is positioned along a base of the outer buoyant material and extends between the internal shell and the buoyant outer material, passing to the interior of the interior shell through a cutout in a protruding portion thereof and terminating adjacent to the vent opening.

An underwater recreation system for diving instruction and method of its use. The method includes providing a series of learning steps with diving techniques and instructions to practice at incrementally deeper depths and providing a surface floating depth limitation device that restricts the learning user to the particular maximum depth of their learning step. The apparatus for carrying out the method of diving instruction includes a surface floating depth limitation device with the means to connect to the breathing hose of a surface supplied air supply.

Systems and methods to allow a user to be both towed by and control a personal flotation craft from behind and underneath while engaging in underwater exploration comprising one or more propulsion devices, an optionally foldable tow shaft and one or more directional controllers. Wherein the systems and methods may further comprises one or more remotely controllable speed modulators, controlled by a user from behind and underneath the personal flotation craft, while engaging in underwater exploration.

The present invention relates to a floatable breathing device. The floatable breathing device provides includes a head unit, a snorkel, a plurality of receiving passageways, and an internal pathway. The head unit has buoyant properties and includes an ornamental shaped outer housing and an inner housing positioned within the outer housing, the inner housing forms a head receiving section, the head receiving section is provided between outer surfaces of the outer housing and is configured to be contoured to a human head. The snorkel connects to and extends from the head unit. The plurality of receiving passageways are disposed about the outer housing and receiving the snorkel, the snorkel extending through and exiting a portion of the head unit above a predetermined waterline extending along a periphery of a lower portion of the head unit thereof and identifies buoyancy of the head unit in water. The internal pathway positioned along a base of the outer housing and extending through a center section of the head receiving section of the head unit.

The present invention relates to a floatable breathing device. The floatable breathing device a head unit, a mask and a snorkel. The head unit general includes an ornamental shaped outer housing, an insulated housing positioned within the outer housing and having an ornamental shape and buoyant properties, and a head receiving section provided between the outer housing and the insulated housing and contoured to a human head. The mask extends from the outer housing, while the snorkel extends through and exits a portion of the head unit above a predetermined waterline.

Diving gear includes an air pump having a rigid housing with an interior space and an opening closed by a bag-like flexible part to form a variable pump volume delimited by the housing and the flexible part. The air pump is configured so that, if surrounding water causes positive pressure, the flexible part is pressed into the interior space, thus reducing the pump volume, and, at least in sections, lies against a housing inner wall in an interior space contact portion. A diver can pull the flexible part out of the interior space counter to the positive pressure, thus increasing pump volume. An air duct is configured so that, during the suction, air flows from an interior space end region toward a start of the interior space at least into a maximum height region, preferably into the interior space start region, and into the interior space.

A diving device includes an air pump with a rigid housing including an interior and an opening closed by a sack-shaped flexible part to form a variable pump volume delimited by the housing and the flexible part. The air pump is designed such that if surrounding water causes overpressure, the flexible part is pressed into the interior, thereby reducing the pump volume, and rests against an inner wall of the housing at least partly in a contact section of the interior. The flexible part can be pulled out of the interior against the overpressure by the muscle force of a diver, thereby increasing the pump volume. The air supply line can be releasably secured to a support device, in particular a waist belt of the support device, centrally behind the back of the diver, and a quick ejection device is provided for releasably securing the air supply line.

The present invention relates to a floatable breathing device. The floatable breathing device a head unit, a mask and a snorkel. The head unit general includes an ornamental shaped outer housing, an insulated housing positioned within the outer housing and having an ornamental shape and buoyant properties, and a head receiving section provided between the outer housing and the insulated housing and contoured to a human head. The mask extends from the outer housing, while the snorkel extends through and exits a portion of the head unit above a predetermined waterline.

Methods and systems to provide breathing air to underwater divers in response to the divers' respiration at pressures less than 25 psi above atmospheric pressure during inspiration while delivering no or minimal air during exhalation, by controlling the actions of a pump during the time course of breathing. Methods and systems that sense a diver's need for breathing air, determine inhalation demand or exhalation state, and control the operation of a pump which delivers breathing gas to the diver via a tube. An integrated system for the same which incorporates at least an energy source, pump, air tube, breathing aperture, sensor, and logic processor is disclosed.

Diving system comprising a spherical float with an inhalation and exhalation system terminated with a diving snorkel, enabling air intake to the respiratory apparatus of a person being under water; characterised in that inside the spherical float (5) there is a centrally located pair of cylinders (1, 2) opposite to each other comprising air outlet holes (1, 2) with a plurality of side flow pipes (15, 15, 16, 16) and an air-supply pipe (3, 4) pushed over each cylinder (1, 2) joined in a put-over manner with a flexible tube (7) terminated with a diving snorkel (8) comprising an inhalation and exhalation tube (9) with a mouthpiece (10), separate inhalation (11) and exhalation (12) tubes; and comprising, in the lower part of the exhalation tube (12), below an outlet check valve (12) of the exhalation tube (12) comprising a control pump (14).