Panel shaped element, specifically for sound absorbing structure

Details Panel shaped element, specifically for sound absorbing structure Panel shaped element, specifically for sound absorbing structure

1994-03-11

1995-06-06

Gellner, M. L.

Acoustics

Sound-modifying means

Sound absorbing panels

E04B 182

Patent

active

054224462

ABSTRACT:
A sound absorbing panel having a front surface and rear surface, the front surface having a plurality of parallel grooves therein, the rear surface having for each groove in the front surface, a row of bores aligned with respect to the groove, each bore extending into the sound absorbing panel toward the groove with a first diameter to a depth below the depth of the grooves, and thereafter extending with a second smaller diameter into the groove, thereby communicating with the respective one of the grooves, the second diameter being smaller than the width of the grooves.

REFERENCES:
patent: 4539245 (1985-09-01), Sarin et al.
patent: 5024290 (1991-06-01), Birker
patent: 5362931 (1994-11-01), Fries

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