Artificial larynx

Details Artificial larynx Artificial larynx

1979-10-22

1981-05-05

Crowder, Clifford D.

A61F 120

Patent

active

042649897

ABSTRACT:
An improved acoustical artificial larynx comprises a sound chamber having an air inlet, an outlet for vibrating air, a mouth air discharge communicating with said outlet, a tone-producing element having an edge that is vibratable in the human voice range in response to air flow from said inlet, and spreader means for said vibratable edge. The latter element acts as a whispering control and has other utility. Additionally, the pitch can be modulated and, uniquely, the range of that modulation is adjustable.

REFERENCES:
patent: 1836816 (1931-12-01), Riesz
patent: 1840112 (1932-01-01), Lane
patent: 1867350 (1932-07-01), Burchett
patent: 1910966 (1933-05-01), Riesz et al.
patent: 2405850 (1946-08-01), Roberts
patent: 2405851 (1946-08-01), Roberts

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