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US 5,210,383 AGranted
Sound absorbent device for a room
OwnerArthur M. Noxoninventor
Life of this patent
Estimating the term…
Abstract
A tubular sound absorbent device includes the cylindrical wall closed by top and bottom end walls to define an internal chamber. Located within the chamber are various sound wave attenuating devices including those of tubular configuration as well as those of frust-conical shape. The sound wave attenuating components may also include perforated tubes entirely confined within the sound absorbent unit or with a tube extending outwardly for termination in a companion structure.
Claims6
A sound absorbent structure for placement in a room, said structure comprising,
- end walls and a continuous wall therebetween defining an elongate chamber, said wall being of a fibrous nature and acoustically permeable to sound wave frequencies below 250 HZ, and
- sound wave attentuating means of elongate tubular configuration and spaced inwardly from said continuous wall and at least partially disposed in said chamber and having an orifice in unrestricted communication with the chamber to reduce back pressure in the structure for the purpose of effecting a suitable pressure drop across said continuous wall.
Dependencies are inferred from the claim text.