Reflex horn speaker with a waterproofing device

Details Reflex horn speaker with a waterproofing device Reflex horn speaker with a waterproofing device

1980-11-12

1983-05-24

Rubinson, G. Z.

Acoustics

Anatomic or prosthetic relation

Ear and mouth

1791155BS, 181149, H05K 500

Patent

active

043852114

ABSTRACT:
A reflex horn speaker with a waterproofing device for use on a ship or the like is disclosed. The reflex horn speaker comprising a sound generator, an inner cylindrical horn, a conical reflector concentrically arranged around the inner horn, and an outer cylindrical horn concentrically arranged around the reflector, is provided with a waterproofing device such as a valve, mounted to the closed front end of the reflector, which can open or close the front opening of the inner horn in order to prevent water and/or moisture from coming in the inner horn when it is not used.

REFERENCES:
patent: Re23724 (1953-10-01), Seabert
patent: 2290968 (1942-07-01), Igluck
patent: 2981359 (1961-04-01), Carlisle
patent: 3260990 (1966-07-01), Massa
patent: 4071111 (1978-01-01), Croup

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