Grill for audio loudspeakers and the like

Details Grill for audio loudspeakers and the like Grill for audio loudspeakers and the like

1975-09-15

1976-11-02

Stellar, George G.

Acoustics

Anatomic or prosthetic relation

Ear and mouth

181175, H04R 102

Patent

active

039899098

ABSTRACT:
A grill for a loudspeaker has a relatively thick metallic plate with a loudspeaker opening and a plurality of T-shaped bars across the opening, and a relatively thin metallic plate with a loudspeaker opening and a plurality of U-shaped bars across the opening. The plates are mounted together so that the U-shaped bars are located between but spaced from the T-shaped bars to provide physical protection to and good acoustic qualities for the loudspeaker. The relatively thick metallic plate provides a good heat sink for electronic equipment.

REFERENCES:
patent: 2580916 (1952-01-01), Hodge
patent: 2701617 (1955-02-01), Kock
patent: 3679023 (1972-07-01), Rankin
patent: 3909530 (1975-09-01), Gosswiller

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