Aesthetic acoustical air distribution duct system

Details Aesthetic acoustical air distribution duct system Aesthetic acoustical air distribution duct system

1982-09-30

1984-04-10

Makay, Albert J.

98 40D, 98DIG10, F24F 706

Patent

active

044414021

ABSTRACT:
The duct system includes rectangular duct sections suspended from a ceiling of a room, discharging conditioned air from the top, and being formed of fabricated acoustical fibrous board sound absorbent with respect to sounds emanating from sources in the room outside of the duct sections.

REFERENCES:
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patent: 3212529 (1965-10-01), Ullman et al.
patent: 3308743 (1967-03-01), Waeloner et al.
patent: 3513065 (1970-05-01), Pearson
patent: 3515052 (1970-06-01), Branides
patent: 4034826 (1977-07-01), Andrews
patent: 4286419 (1981-09-01), Treffers

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