# US 7,612,686 B1 · Emergency underwater notification device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 7,612,686 B1 - Document ID: US7612686B1 - Status: Granted - Kind: B1 - Application number: 11/602,590 - Filed: 2006-11-21 - Granted: 2009-11-03 - Earliest claimed: 2003-11-03 - Inventors: Michael John Bustamante; Anthony M. Scott; Brian A. Amond - Web page: https://patentgrep.com/patent/US7612686B1 ## CPC - H04B 13/02: Transmission systems in which the medium consists of the earth or a large mass of water thereon, e.g. earth telegraphy - H04B 11/00: Transmission systems employing ultrasonic, sonic or infrasonic waves - H04B: TRANSMISSION ## 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 notification signal upon receipt by the receiver of either a secondary communication signal or a tertiary communication signal from another notification device, the quaternary signal emitter comprising one or more of the following: a light source, a hydrophone, a siren, a speaker, or an acoustic transducer. ## Claims ### Claim 1 A notification device comprising: (a) an activator; (b) one or more primary signal emitters, said one or more primary signal emitters to each emit a primary notification signal upon activation of the activator; (c) one or more secondary signal emitters, said one or more secondary signal emitters to each emit a secondary communication signal upon activation of the activator, said secondary communication signal employing a group identification signal to facilitate the selective response of a group of devices; (d) one or more receivers capable of receiving communication signals; (e) one or more tertiary signal emitters, said one or more tertiary signal emitters to each 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, said tertiary communication signal employing a group identification signal to facilitate the selective response of a group of devices; and (f) one or more quaternary signal emitters, said one or more quaternary signal emitters to each emit a quaternary notification signal upon receipt by the receiver of either a secondary communication signal or a tertiary communication signal from another notification device. ### Claim 2 (depends on 1) The notification device of claim 1 wherein said primary signal emitter emits a primary notification signal comprising light waves. ### Claim 3 (depends on 1) The notification device of claim 1 wherein said primary signal emitter emits a primary notification signal comprising sound waves. ### Claim 4 (depends on 1) The notification device of claim 1 wherein said secondary signal emitters emit a secondary communication signal comprising electromagnetic waves. ### Claim 5 (depends on 1) The notification device of claim 1 wherein said tertiary signal emitters emit a tertiary communication signal comprising electromagnetic waves. ### Claim 6 A notification device comprising: (a) an activator; (b) one or more primary signal emitters, said one or more primary signal emitters to each emit a primary notification signal upon activation of the activator; (c) one or more corresponding secondary signal emitters, said one or more corresponding secondary signal emitters to each emit a corresponding secondary communication signal in relation to said one or more primary signal emitters upon activation of the activator; (d) one or more receivers capable of receiving communication signals; (e) one or more corresponding tertiary signal emitters, said one or more corresponding tertiary signal emitters to each emit a corresponding tertiary communication signal in relation to said one or more primary signal emitters upon receipt by the receiver of either a corresponding secondary communication signal or a corresponding tertiary communication signal from another notification device; and (f) one or more corresponding quaternary signal emitters, said one or more corresponding quaternary signal emitters to each emit a corresponding quaternary notification signal in relation to said one or more primary signal emitters upon receipt by the receiver of either a corresponding secondary communication signal or a corresponding tertiary communication signal from another notification device. ### Claim 7 (depends on 6) The notification device of claim 6 wherein said primary signal emitter emits a primary notification signal comprising light waves. ### Claim 8 (depends on 6) The notification device of claim 6 wherein said primary signal emitter emits a primary notification signal comprising sound waves. ### Claim 9 (depends on 6) The notification device of claim 6 wherein said secondary signal emitters emit a secondary communication signal comprising electromagnetic waves. ### Claim 10 (depends on 6) The notification device of claim 6 wherein said tertiary signal emitters emit a tertiary communication signal comprising electromagnetic waves. ### Claim 11 (depends on 6) The notification device of claim 6 wherein a corresponding secondary communication signal comprises a group identification signal. ### Claim 12 (depends on 6) The notification device of claim 6 wherein a corresponding tertiary communication signal comprises a group identification signal. ### Claim 13 An underwater notification device comprising: (a) an activator; (b) one or more primary signal emitters, said one or more primary signal emitters to each emit a primary notification signal upon activation of the activator; (c) one or more corresponding secondary signal emitters, said one or more corresponding secondary signal emitters to each emit a corresponding secondary communication signal in relation to said one or more primary signal emitters upon activation of the activator, said corresponding secondary communication signal employing a group identification signal to facilitate the selective response of a group of devices; (d) one or more receivers capable of receiving communication signals; (e) one or more corresponding tertiary signal emitters, said one or more corresponding tertiary signal emitters to each emit a corresponding tertiary communication signal in relation to said one or more primary signal emitters upon receipt by the receiver of either a corresponding secondary communication signal or a corresponding tertiary communication signal from another notification device, said corresponding tertiary communication signal employing a group identification signal to facilitate the selective response of a group of devices; and (f) one or more corresponding quaternary signal emitters, said one or more corresponding quaternary signal emitters to each emit a corresponding quaternary notification signal in relation to said one or more primary signal emitters upon receipt by the receiver of either a corresponding secondary communication signal or a corresponding tertiary communication signal from another notification device. ### Claim 14 (depends on 13) The underwater notification device of claim 13 wherein said primary signal emitter emits a primary notification signal comprising light waves. ### Claim 15 (depends on 13) The underwater notification device of claim 13 wherein said secondary signal emitters emit a secondary communication signal comprising electromagnetic waves. ### Claim 16 (depends on 13) The underwater notification device of claim 13 further comprising a detachable remote repeater, said remote repeater emitting primary notification signals and corresponding secondary communication signals upon receipt of corresponding secondary communication signals from said underwater notification device. ### Claim 17 (depends on 13) The underwater notification device of claim 13 wherein said underwater notification device is buoyant and wherein said underwater notification device further comprises an attached lanyard. ### Claim 18 (depends on 13) The underwater notification device of claim 13 further comprising a telemetry recording device logging dive conditions and incidents occurring from the time said telemetry recording device is turned on. ### Claim 19 (depends on 13) The underwater notification device of claim 13 further comprising a telemetry recording device logging dive conditions and incidents occurring from the time said underwater notification device is activated by a user diver in distress. ### Claim 20 (depends on 13) The underwater notification device of claim 13 further comprising an emergency position locator device. ### Claim 21 (depends on 13) The underwater notification device of claim 13 further comprising a dive computer.