Acoustic board

Details Acoustic board Acoustic board

1992-06-30

1993-02-09

Gellner, Michael L.

Acoustics

Sound-modifying means

Sound absorbing panels

181288, 181292, 181293, E04B 182

Patent

active

051855046

ABSTRACT:
This invention relates to an acoustic board and in particular to one which includes a framework, a front panel formed with a plurality of larger openings and smaller openings and fitted on one side of the framework, a rear panel fitted on another side of said framework thereby forming a space between the front panel and the rear panel, a plurality of sound collecting cylinders having an open front end and a closed second end and each fitted within respective larger openings of the front panel and having the open end aligned with the larger openings of the front panel, and a plurality of silencers formed with a plurality of elongated perforations and extended through and supported in an opening provided in the second end of the sound collecting cylinder.

REFERENCES:
patent: 5004070 (1991-04-01), Wang

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