US 12,187,018 B2
Sound-absorbing article with perforations in backing, surface coverings comprising same, and systems and methods of making and using same
Stuart Colam, Henley on Thames (GB); Barrett Randolph Morton, Cartersville, GA (US); Andrew Robert Morelli, Woodstock, GA (US); and Jay Peter Vecsey, Canton, GA (US)
Assigned to Columbia Insurance Company, Omaha, NE (US)
Filed by Columbia Insurance Company, Omaha, NE (US)
Filed on Aug. 22, 2023, as Appl. No. 18/453,505.
Application 18/453,505 is a continuation of application No. 17/553,231, filed on Dec. 16, 2021, granted, now 11,780,204.
Claims priority of provisional application 63/126,102, filed on Dec. 16, 2020.
Prior Publication US 2023/0391043 A1, Dec. 7, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. B32B 3/26 (2006.01); B32B 5/02 (2006.01); B32B 27/12 (2006.01); B32B 27/32 (2006.01); B32B 27/34 (2006.01); B32B 27/36 (2006.01); B32B 38/04 (2006.01); G10K 11/168 (2006.01)
CPC B32B 3/266 (2013.01) [B32B 5/022 (2013.01); B32B 5/024 (2013.01); B32B 27/12 (2013.01); B32B 27/32 (2013.01); B32B 27/34 (2013.01); B32B 27/36 (2013.01); B32B 38/04 (2013.01); G10K 11/168 (2013.01); B32B 2038/047 (2013.01); B32B 2250/02 (2013.01); B32B 2307/10 (2013.01); B32B 2471/00 (2013.01)] 28 Claims
OG exemplary drawing
 
1. A sound-absorbing article comprising:
a backing having a thickness, the backing configured to receive face fibers that extend therefrom,
wherein the backing defines a plurality of perforations that fully extend through the thickness of the backing and are patterned to determine an acoustic property of the sound absorbing article,
wherein the plurality of perforations comprise:
a first plurality of perforations that are arranged in a first pattern,
a second plurality of perforations that are arranged in a second pattern that is different from the first pattern, and
a third plurality of perforations that are arranged in a third pattern,
wherein the first plurality of perforations are disposed over a first area, wherein the second plurality of perforations are disposed over a second area, wherein the first area is disposed within a perimeter defined by the second area such that the second area encloses the first area,
wherein the third plurality of perforations are disposed over a third area,
wherein the second area is disposed within a perimeter defined by the third area such that the third area encloses the second area,
wherein, within at least a portion of the backing, sequential perforations of the plurality of perforations are spaced center-to-center by between 5 mm and 100 mm.