Acoustic damping material
First Claim
1. An acoustic damping material comprising at least one resilient sheet in the form of a film comprising a polyolefin, each of said at least one sheet having a first side and a second side, wherein at least a first portion of one of said first and second sides and a second portion of one of said first and second sides face each other to form a multi-layered structure, wherein said first and second portions are partially separated by a compressible material, thereby substantially trapping pockets of said compressible material between said first and said second portions, and wherein at least some of said pockets are in fluid communication with one another.
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Accused Products
Abstract
An acoustic damping material that includes at least one resilient sheet, wherein each of the sheets have a first side and a second side, and wherein at least two portions of the sides face each other to form a multi-layered structure, is provided. The resilient sheet may be made from any resilient polymer film, such as a polyolefin, and especially polyethylene. Also provided is an acoustic speaker system that has an exceptionally flat frequency response, especially at low audible frequencies. The system includes an enclosure, a speaker mounted to the enclosure, and acoustic damping material (according to this invention) inside the enclosure. An acoustic damping panel, which includes a frame and acoustic damping material fixed to the frame, is also provided.
32 Citations
58 Claims
- 1. An acoustic damping material comprising at least one resilient sheet in the form of a film comprising a polyolefin, each of said at least one sheet having a first side and a second side, wherein at least a first portion of one of said first and second sides and a second portion of one of said first and second sides face each other to form a multi-layered structure, wherein said first and second portions are partially separated by a compressible material, thereby substantially trapping pockets of said compressible material between said first and said second portions, and wherein at least some of said pockets are in fluid communication with one another.
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15. An acoustic speaker system comprising:
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a system enclosure; an acoustic speaker mounted to said enclosure; and acoustic damping material inside said enclosure, said material comprising at least one resilient sheet in the form of a film comprising polyolefin, each of said at least one sheet having a first side and a second side, wherein at least a first portion of one of said first and second sides and a second portion of one of said first and second sides face each other to form a multi-layered structure, wherein said first and second portions are partially separated by a compressible material, thereby substantially trapping pockets of said compressible material between said first and second portions, and wherein at least some of said pockets are in fluid communication with one another. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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- 31. For use in making an acoustic speaker system, a method for making acoustic damping material, said method comprising deforming at least one resilient sheet in the form of a film comprising polyolefin, each of said at least one sheet having a first side and a second side, wherein at least a first portion of one of said first and second sides and a second portion of one of said first and second sides face each other to form a multi-layered structure, wherein said first and second portions are partially separated by a compressible material, thereby substantially trapping pockets of said compressible material between said first and second portions, and wherein at least some of said pockets are in fluid communication with one another.
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40. An acoustic damping panel comprising:
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a frame; and acoustic damping material fixed to said frame, said material comprising at least one resilient sheet in the form of a film comprising a polyolefin, each of said at least one sheet having a first side and a second side, wherein at least a first portion of one of said first and second sides and a second portion of one of said first and second sides face each other to form a multi-layered structure, wherein said first and second portions are partially separated by a compressible material, thereby substantially trapping pockets of said compressible material between said first and second portions, and wherein at least some of said pockets are in fluid communication with one another. - View Dependent Claims (41, 42, 43, 44, 45)
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46. An acoustic speaker system comprising:
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a system enclosure; an acoustic speaker mounted to said enclosure; and acoustic damping material loaded inside said enclosure, said material comprising at least one resilient sheet in the form of a film comprising polyolefin. - View Dependent Claims (47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58)
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Specification