Protective grille

Details Protective grille Protective grille

1975-06-30

1976-11-30

Brown, Thomas W.

H04R 102

Patent

active

039951251

ABSTRACT:
A grille for protecting a loudspeaker or the like comprises two substantially identical parts, each part being formed with bars defining a plurality of openings. When the two parts are placed together in back-to-back and head-to-toe relation, the openings in one part are out of register with the openings in the other part. This provides a plurality of circuitous paths through the grille for the passage of sound or the like, but there are no straight-line paths through the grille for the passage of vandalizing implements or the like.

REFERENCES:
patent: 2490563 (1949-12-01), Van Gastle
patent: 3909530 (1975-09-01), Gosswiller

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