Omindirectional modular siren

Details Omindirectional modular siren Omindirectional modular siren

1990-09-07

1992-09-08

Dwyer, James L.

Electrical audio signal processing systems and devices

Electro-acoustic audio transducer

381182, 381188, 381205, 381152, 381192, H04R 2500, H05K 500

Patent

active

051465086

ABSTRACT:
An omnidirectional siren having a plurality of hollow modules supported in vertical alignment on a single, central pole. Active modules each enclose a plurality of audio transducers (i.e., compression drivers) and a horn mechanism which guides sound waves from the drivers to an outlet in the lower surface of the module. The drivers are positioned peripherally within each module so that they can be easily accessed for repair or replacement through slots in the peripheral surface of the module.

REFERENCES:
patent: D305660 (1990-01-01), Howze
patent: 2550359 (1951-04-01), Levy
patent: 3842203 (1974-10-01), Weisberg
patent: 4023566 (1977-05-01), Martinmaas
patent: 4633229 (1986-12-01), Iacono et al.
patent: 4796009 (1989-01-01), Biersach
patent: 4847590 (1989-07-01), Gosswiller
patent: 4908601 (1990-03-01), Howze
patent: 4953223 (1990-08-01), Householder
Whelen Engineering Co. brochure, "High-Power Voice and Siren Sysetms," pp. 1, 8, and 9, 1988.
Kockum Sonics brochure, "TYFONIC Sound Emitter type ET 500," 4 pages (undated).
Federal Signal Corporation brochure, "SIRATONE Models EOWS 612 and 1212," Jan. 1988.
Federal Signal Corporation brochure, "Model 2 Omni-directional Siren," May 1990.

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