US 5,471,976 AGranted

Mini diving system

OwnerRaymond K. Smithinventor

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Abstract

Disclosed is a mini diving device that provides diving in a limited depth of water of extended periods of time. The diving device (FIG. 1) is comprised of a low pressure regulator (FIG. 2). An air intake line which includes an expandable hose. Attached to the air intake line is a waterproof vessel container enclosing a battery operated air pump. The pump draws air from the surface of the water through a vertical extended tubing.

Claims2

Dependent claims

An underwater breathing device comprising an air delivery means and an air regulating means;

said air delivery means comprising a flexible accumulator tube which accumulates continuous low-pressure air at an adequate flow rate for direct breathing from a minimal-capacity electric air pump housed within a buoyant container and delivers said low-pressure air to said air regulating means for a person underwater, thereby avoiding a conventional rigid air storage tank;
and
said air regulating means utilizing a slideable low-pressure porting device, thereby avoiding the highly loaded regulator springs required at the intake valve of a conventional high-pressure regulator;
whereupon said underwater breathing device is accordingly sufficiently portable to be transportable through the mail or to accompany a passenger on an airplane,
said underwater breathing device further including an air-supply regulating means supplied with continuous low-pressure air for a person underwater, said regulator comprising a chamber with an intake port, mouthpiece port, exhaust port and a diaphram exposed to water pressure;
whereupon inhaling by a person underwater from said chamber through said mouthpiece port deflects said diaphram inwards, imparting axial motion to a movable sleeve to which said diaphram is secured, said sleeve coaxially and slidably secured to fixed tube connected to continuous low-pressure air through said intake port, said fixed tube and moveable sleeve pierced by a circumferential line of ports;
said axial motion of said movable sleeve aligning said circumferential ports, thereby releasing low-pressure air to said chamber and thence to said mouthpiece port;
whereupon exhaling by a person underwater into said chamber through said mouthpiece port deflects said diaphram outwards, causing axial motion of said moveable sleeve to which said diaphram is secured;
said axial motion of said moveable sleeve misaligning said circumferential ports, thereby blocking low-pressure air to said chamber;
whereupon exhaled air is expelled through said exhaust port;
said regulator thereby permitting input of low-pressure air at a pressure safe for breathing from a continuous air supply while accommodating intermittent breathing.

8 more elements

Dependencies are inferred from the claim text.

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Abstract

An underwater breathing device comprising an air delivery means and an air regulating means;

said air delivery means comprising a flexible accumulator tube which accumulates continuous low-pressure air at an adequate flow rate for direct breathing from a minimal-capacity electric air pump housed within a buoyant container and delivers said low-pressure air to said air regulating means for a person underwater, thereby avoiding a conventional rigid air storage tank;
and
said air regulating means utilizing a slideable low-pressure porting device, thereby avoiding the highly loaded regulator springs required at the intake valve of a conventional high-pressure regulator;
whereupon said underwater breathing device is accordingly sufficiently portable to be transportable through the mail or to accompany a passenger on an airplane,
said underwater breathing device further including an air-supply regulating means supplied with continuous low-pressure air for a person underwater, said regulator comprising a chamber with an intake port, mouthpiece port, exhaust port and a diaphram exposed to water pressure;
whereupon inhaling by a person underwater from said chamber through said mouthpiece port deflects said diaphram inwards, imparting axial motion to a movable sleeve to which said diaphram is secured, said sleeve coaxially and slidably secured to fixed tube connected to continuous low-pressure air through said intake port, said fixed tube and moveable sleeve pierced by a circumferential line of ports;
said axial motion of said movable sleeve aligning said circumferential ports, thereby releasing low-pressure air to said chamber and thence to said mouthpiece port;
whereupon exhaling by a person underwater into said chamber through said mouthpiece port deflects said diaphram outwards, causing axial motion of said moveable sleeve to which said diaphram is secured;
said axial motion of said moveable sleeve misaligning said circumferential ports, thereby blocking low-pressure air to said chamber;
whereupon exhaled air is expelled through said exhaust port;
said regulator thereby permitting input of low-pressure air at a pressure safe for breathing from a continuous air supply while accommodating intermittent breathing.

8 more elements