Duct silencer

Details Duct silencer Duct silencer

1997-02-19

1998-03-17

Dang, Khanh

Acoustics

Sound-modifying means

Muffler, fluid conducting type

E04F 1704

Patent

active

057289808

ABSTRACT:
A silencer for gas flowing through a duct includes a plurality of acoustical flat panels mounted in a duct and spaced from each other across the width of the duct. Each of the panels includes a core of rigid acoustical material encapsulated and heat sealed in polyvinyl fluoride to form opposed sides and opposed edges, all having smooth exterior surfaces.

REFERENCES:
patent: 2802764 (1957-08-01), Slayter et al.
patent: 3726359 (1973-04-01), Dierl et al.
patent: 3841434 (1974-10-01), Culpepper, Jr.
patent: 4266602 (1981-05-01), White et al.
patent: 4558892 (1985-12-01), Daw et al.
patent: 5165730 (1992-11-01), McElroy

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