Vocal communication snorkel

Details Vocal communication snorkel Vocal communication snorkel

1994-08-30

1996-02-20

Dang, Khanh

Acoustics

Anatomic or prosthetic relation

Dentiphone

181 21, 12820111, 367132, G10K 1100

Patent

active

054930790

ABSTRACT:
A vocal communication snorkel includes a hollow body having a breather tube, adapted to extend above the water, coupled thereto and a mouthpiece adapted to be held by the lips of a snorkeler. The body has a pair of inwardly curved, spherically shaped diaphragms of thin plastic material that are tuned to resonance within the frequency band of 1500 to 3000 Hertz in water. The mouthpiece includes a passageway that is coupled to the body and a pair of flexible lips, that are closable by the lips of the snorkeler for articulating plosive sounds. A readily collapsible bubble, formed in the passageway and engageable by the lower lip of the snorkeler, facilitates closure of the passageway under pressure from the snorkeler's lower lip.

REFERENCES:
patent: 2844212 (1958-07-01), Hogan et al.
patent: 3174129 (1965-03-01), Laughlin et al.
patent: 3210723 (1965-10-01), Martelli et al.
patent: 3348539 (1967-10-01), McDonald
patent: 3828887 (1974-08-01), Alexander
patent: 4031888 (1977-06-01), Walters
patent: 4071110 (1978-01-01), Payne
patent: 4183422 (1980-01-01), Williams
patent: 4527657 (1985-07-01), Payne
patent: 4852682 (1989-08-01), Benjamin
"Mighty Mouth" by Jack McKenney, Skin Diver/Jul. 1969, pp. 38, 39, and 76.

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