MOLDED SOUND ABSORBER WITH INCREASED SURFACE AREA
First Claim
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1. A sound absorber comprising:
- a molded sheet having a first side and a second side, the first side being substantially non-planar and the second side placeable adjacent to an automobile component surface wherein the first side has a surface area that is greater than an equivalent surface area of a planar surface.
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Abstract
A sound absorber includes a molded sheet having a first side and a second side. The first side of the molded sheet is substantially non-planar while the second side is such that the molded sheet can be placed proximate to an automobile component surface with the second surface adjacent to or opposing the automobile component surface. The first side has a surface area that is greater than an equivalent surface area of a planar surface. A method of forming the sound absorber includes compression molding of thermosetting materials.
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Citations
20 Claims
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1. A sound absorber comprising:
a molded sheet having a first side and a second side, the first side being substantially non-planar and the second side placeable adjacent to an automobile component surface wherein the first side has a surface area that is greater than an equivalent surface area of a planar surface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A method of molding a sound absorber having a molded sheet having a first side and a second side, the first side being substantially non-planar and the second side placeable adjacent to an automobile component surface wherein the first side has a surface area that is greater than an equivalent surface area of a planar surface, the method comprising:
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a) introducing a molding material into a heated mold cavity, the mold cavity having a surface that is the inverse of the first surface; and
b) applying sufficient heat or pressure to form the sound absorber.
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- 18. The method of claim 18 wherein the molded sheet has a cross section that is at least partially curved.
Specification