Sound absorbing pipe

Details Sound absorbing pipe Sound absorbing pipe

1987-05-07

1990-02-13

Fuller, B. R.

Acoustics

Sound-modifying means

Sound absorbing fence or screen

181205, 181284, 181290, 181293, G10K 1100

Patent

active

048998460

ABSTRACT:
A sound absorbing pipe comprising a circumferential wall, open portions disposed at regular intervals in the circumferential wall having a predetermined area ratio and sound absorbing material disposed in a hollow formed in an interior portion of the pipe.

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patent: 4572327 (1986-02-01), Dean
Rundfunktechnische Mitteilungen, Band 27, Nr. 2, Mar./Apr. 1983, Seiten 62-70, Norderstedt, DE H Wollherr, "Gestaltung des Abhorbereiches in einem Tonubertragunswagen".
Rundfunk Technische Mitteilungen, Band 29, Nr. 6, Dec./1985, Seiten 278-286, Norderstedt, DE T. J. Schultz, "Acoustical Uses for Perforated Metals".

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