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Machine translation
1. (WO1979000497) UNDERWATER COMMUNICATIONS DEVICE
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1979/000497    International Application No.:    PCT/US1979/000011
Publication Date: 09.08.1979 International Filing Date: 10.01.1979
IPC:
B63C 11/26 (2006.01), G10K 13/00 (2006.01)
Applicants:
Inventors:
Priority Data:
868826 12.01.1978 US
Title (EN) UNDERWATER COMMUNICATIONS DEVICE
(FR) DISPOSITIF POUR COMMUNIQUER SOUS L"EAU
Abstract: front page image
(EN)A communications device for use under water by a human speaker. A tubular base member (3) has a mouthpiece (4) located at one open end thereof and an inflatable air bag (1) mounted about another open end thereof. The speaker places the mouthpiece over and around his mouth to form an air seal and partially inflates the air bag, then talking into the device with voiced sounds being transmitted to the surrounding water through suitable transmitting means attached to the base member, preferably the air bag itself. The air bag receives air used by the speaker when speaking and may also return expelled air in a closed system, thereby effectively preventing the escape of air bubbles which interfere with communications. The air bag is preferably an elongated, flexible, elastic balloon which has a groove and fold structure.
(FR)Le dispositif est destine a etre utilise pour la communication sous-marine au moyen de la voix. Le corps (3) du dispositif est tubulaire et presente une embouchure (4) a l"une de ses extremites ouvertes ainsi qu"un sac a air gonflable (1) monte a l"autre extremite. L"utilisateur place l"embouchure autour de la bouche de maniere a former un joint etanche a l"air et gonfle partiellement le sac a air en parlant dans le dispositif. Les sons de la voix sont transmis a l"eau environnante par des moyens fixes audit corps, de preference par le sac lui-meme. Le sac a air recoit l"air emis par l"utilisateur en parlant puis peut retourner l"air expulse dans un circuit ferme de maniere a eviter l"echappement de bulles qui entravent la communication. Le sac a air est forme de preference d"un ballon elastique, flexible et allonge, qui presente une conformation plissee et rainuree.
Designated States:
Publication Language: English (EN)
Filing Language: English (EN)