Breathing mouthpiece for underwater use

Details Breathing mouthpiece for underwater use Breathing mouthpiece for underwater use

1976-01-05

1977-06-28

Michell, Robert W.

Surgery

Truss

Pad

128136, 128147, A62B 700

Patent

active

040318885

ABSTRACT:
A mouthpiece reducing fatigue and permitting the wearer to communicate by speech under water, including a cupped housing shaped to fit over the wearer's mouth, the housing having a central breathing port, and a pair of bit elements affixed interiorly to the housing and extending into the wearer's mouth to be gripped by the molar teeth, thereby allowing substantial movement of the lips and limited movement of the front teeth in normal speech.

REFERENCES:
patent: 2857911 (1958-10-01), Bennett
patent: 3079916 (1963-03-01), Marsden
patent: 3123680 (1964-03-01), Minton, Jr. et al.
patent: 3347230 (1967-10-01), Cupp
patent: 3768465 (1973-10-01), Helmer

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