Acoustic tile
AssigneeHerman Miller, Inc.
InventorsDavid J. Schuelke, Randy H. Barnard, III, Kenneth E. Kleinke
Life of this patent
Estimating the term…
Abstract
An acoustic tile that provides soundproofing in a modular wall, such as is used in a modular panel office system, comprises a rigid rectangular metallic frame, a septum formed of a calcium carbonate-filled molded synthetic rubber polymer, a layer of low-density fiberglass and a layer of high-density fiberglass. The front of the frame is covered by fabric, and the back of the frame has fittings to attach the acoustic tile to a wall panel.
Claims23
An acoustic tile for mounting to a rigid frame to provide sound transmission attenuation and sound-deadening characteristics to a wall comprising one or more of said acoustic tiles, said tiles comprising:
- a relatively rigid frame defining an open central portion;
- a first acoustic layer of a high-density acoustic material conforming to the perimetric shape of the frame and mounted in the open central portion thereof, said first acoustic layer being relatively rigid and providing structural rigidity to said rigid frame;
- a second acoustic layer of a relatively compressible, low-density acoustic material, conforming to the perimetric shape of said frame and mounted in the open central portion thereof in facing relationship to said first acoustic layer;
- a septum formed of a flexible sound-transmission blocking material, also conforming to the perimetric shape of said frame, and mounted in the open central portion thereof in facing relationship to said second layer of acoustic material;
- said first acoustic layer, said second acoustic layer and said septum being of densities and thicknesses to provide sound-transmission class rating of at least 28.
An acoustic tile for mounting to a rigid frame to provide sound transmission attenuation and sound-deadening characteristics to a wall comprising one or more of said acoustic tiles, said tiles comprising:
- a relatively rigid frame defining an open central portion;
- a first acoustic layer of a high-density acoustic material conforming to the perimetric shape of the frame and mounted in the open central portion thereof, said first acoustic layer being relatively rigid and providing structural rigidity to said rigid frame;
- a second acoustic layer of relatively compressible, low-density acoustic material, conforming to the perimetrical shape of said frame and mounted in the open central portion thereof in facing relationship to said first acoustic layer;
- a septum formed of a flexible sound-transmission blocking material, also conforming to the perimetric shape of said frame, and mounted in the open central portion thereof in facing relationship to said second layer of acoustic material, said septum being made of a moldable rubbery polymer and being relatively yieldable to deform when forced against components in said wall.
Dependencies are inferred from the claim text.