Hands-free megaphone

Details Hands-free megaphone Hands-free megaphone

2005-09-06

2005-09-06

Tran, Sinh (Department: 2644)

Electrical audio signal processing systems and devices

Megaphones

Reexamination Certificate

active

06940984

ABSTRACT:
The megaphone includes a headset1incorporating a microphone5which is connected via a flexible cable8to a body pack2.The body pack includes a housing9which incorporates a battery compartment, an amplifier, a siren and an on/off switch. The housing9is mounted on a belt3together with an audio output horn12.

REFERENCES:
patent: 5353975 (1994-10-01), Libertucci
patent: 5933511 (1999-08-01), Garth, Sr.
patent: 6015160 (2000-01-01), Spector
patent: 6490362 (2002-12-01), Clegg et al.
patent: 2349035 (2000-10-01), None

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