Pre-formed speaker grille cloth

Details Pre-formed speaker grille cloth Pre-formed speaker grille cloth

1993-12-29

1995-05-02

Lesmes, George F.

Acoustics

Diaphragm and enclosure

Recessed

428266, 428285, 428287, B32B 700, B32B 1500, B32B 2734

Patent

active

054121620

ABSTRACT:
A grille cloth for speaker assemblies is preformed into a desired shape and has sufficient rigidity to maintain this pre-formed shape while being supported in a non-tensional manner only at its periphery. The use of such a pre-formed fabric as a grille cloth eliminates a need for non-peripheral support while visually obscuring the components of the speaker assembly behind the grille cloth. The grille cloth is comprised of a polyester material which is substantially transparent to acoustic radiation in the audible frequency range while also being substantially opaque to visible light.

REFERENCES:
patent: 3727004 (1973-04-01), Bose
patent: 3941207 (1976-03-01), Croup
patent: 4140203 (1979-02-01), Niguchi et al.
patent: 4365114 (1982-12-01), Soma
patent: 4441577 (1984-04-01), Kurihara
patent: 4811406 (1989-03-01), Kawachi
patent: 4949386 (1990-08-01), Hill
patent: 5031720 (1991-07-01), Ohta et al.
Polk MM Series Brochure.
Sonance Speakers "Sonance II" Brochure.
Sonance Speakers "Sonance III" Brochure.
Sonance II, III, and Subwoofer Installation Instructions.
Sonance IV and Sonance I Brochure.
Sonance Speakers "Sonance Subwoofer" Brochure.

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