Artificial larynx

Details Artificial larynx Artificial larynx

1974-10-18

1976-08-31

Claffy, Kathleen H.

A61F 120, Q10L 110

Patent

active

039782867

ABSTRACT:
A speech aid device has a housing with a tubular main body enclosing a battery and an electric motor. An obliquely directed side arm of the housing has a diaphragm resiliently mounted at the free end. A striker is guided for reciprocable movement along the side arm axis to beat against the other face of the diaphragm and is driven by the motor through a gear box and an eccentric drive. A tension spring is included in the drive and a compression spring opposes the striker return movement, so that the striker is floatingly mounted by the springs. A feature of the drive is a resilient link between the motor and hammer.

REFERENCES:
patent: 1172712 (1916-02-01), Hutchinson
patent: 2056295 (1936-10-01), Riesz
patent: 2058212 (1936-10-01), Burchett
patent: 2916920 (1959-12-01), Planer et al.
patent: 3072745 (1963-01-01), Barney
patent: D190812 (1877-05-01), Boren

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