Speech diaphragm and exhalation valve

Details Speech diaphragm and exhalation valve Speech diaphragm and exhalation valve

1992-04-16

1995-01-31

Asher, Kimberly L.

Surgery

Respiratory method or device

Means for transmitting, or facilitating, voice communication...

12820128, 12820524, 12820712, A62B 1802, A62B 1810, A62B 902

Patent

active

053851412

ABSTRACT:
A combined speech diaphragm and exhalation valve for a respirator is formed as a unitary sub-assembly whereby the speech diaphragm is movable in unison with the exhalation valve.

REFERENCES:
patent: 2038267 (1936-04-01), Bullard
patent: 3035574 (1962-05-01), Lytle et al.
patent: 3109425 (1963-11-01), Gongoll et al.
patent: 3348537 (1967-10-01), Miller et al.
patent: 3995627 (1976-12-01), O'Neill
patent: 4991577 (1991-02-01), Shigematsu

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