Abstract: The autonomous waterproof electronic signaling device disclosed comprises an activator; an audible signal emitter and a visual signal emitter, the audible signal emitter to emit a primary signal upon activation of the activator, the audible signal emitter comprising one or more of the following: a hydrophone, a siren, a speaker, or a transducer; and a head assembly, the head assembly positioned so as to alter at least a portion of the primary signal producing a notification signal. The visual signal emitter comprises at least one of incandescent bulbs, compact fluorescent bulbs, strobe bulbs, high intensity discharge (HID) bulbs, and light emitting diodes (LED) bulbs. The audible signal emitter and a visual signal emitter are operative singly or in combination, continuously or intermittently.

Abstract: The autonomous waterproof electronic signaling device disclosed comprises an activator; a signal emitter, said signal emitter to emit a primary signal upon activation of said activator, said signal emitter comprising one or more of the following: a hydrophone, a siren, a speaker, or a transducer; and a head assembly, said head assembly positioned so as to alter at least a portion of said primary signal producing a notification signal.

Abstract: The emergency underwater notification device disclosed, one of which would be carried by each diver on a team of divers at a dive site, comprises (a) an activator; (b) one or more primary signal emitters, each of which emits a primary notification signal upon activation of the activator, the primary signal emitter comprising one or more of the following: a light source, a hydrophone, a siren, a speaker, or an acoustic transducer; (c) one or more secondary signal emitters, each of the secondary signal emitters emitting a secondary communication signal upon activation of the activator; (d) a receiver capable of receiving communication signals; (e) one or more tertiary signal emitters, each of the tertiary signal emitters to emit a tertiary communication signal upon receipt by the receiver of either a secondary communication signal or a tertiary communication signal from another notification device; and (f) one or more quaternary signal emitters, each of the quaternary signal emitters to emit a quaternary notifi

Abstract: A Manually Agitated Underwater Signaling Device used for SCUBA divers, snorkelers and other water-sport enthusiasts. The Manually Agitated Underwater Signaling Device includes a water tight right circular cylindrical body containing one or more rigid spheres inside, an integrated slot for the connection of a lanyard to one end of the right circular cylindrical body and a spherical base integrated into the other end of the right circular cylindrical body. The right circular cylindrical body is comprised of two body halves, a right half and a left half. The right half includes a tongue ridge with an energy director around the perimeter forming a mating surface. The left half includes a recessed groove around its perimeter forming a mating surface that intersects with the right half when aligned together. The Manually Agitated Underwater Signaling Device includes an exterior surface texture to improve the grip.

Abstract: The emergency underwater notification device disclosed, one of which would be carried by each diver on a team of divers at a dive site, comprises (a) an activator; (b) one or more primary signal emitters, each of which emits a primary notification signal upon activation of the activator, the primary signal emitter comprising one or more of the following: a light source, a hydrophone, a siren, a speaker, or an acoustic transducer; (c) one or more secondary signal emitters, each of the secondary signal emitters emitting a secondary communication signal upon activation of the activator; (d) a receiver capable of receiving communication signals; (e) one or more tertiary signal emitters, each of the tertiary signal emitters to emit a tertiary communication signal upon receipt by the receiver of either a secondary communication signal or a tertiary communication signal from another notification device; and (f) one or more quaternary signal emitters, each of the quaternary signal emitters to emit a quaternary notifi