US4805724A — Sound-absorbing panel

Claim 1

Independent Claim 69 words

Sound-absorbing panel, comprising a synthetic foam mat having a given size, a synthetic fiber web having substantially said given size, a riveted seam attaching said synthetic foam mat to said synthetic fiber web at least pointwise in a given pattern, and second means for attaching the sound-absorbing panel to a wall for damping sound radiation of the wall while maintaining a distance between the sound-absorbing panel and the wall.

Claim 2

Dependent Claim 69 words

Sound-absorbing panel, comprising a synthetic foam mat having a given size, a synthetic fiber web having substantially said given size, a riveted seam attaching said synthetic foam mat to said synthetic fiber web at least pointwise in a given pattern, and second means for attaching the sound-absorbing panel to a wall for damping sound radiation of the wall while maintaining a distance between the sound-absorbing panel and the wall.

Claim 3

Dependent Claim 18 words

Sound-absorbing panel according to claim 1, wherein said second attaching means are in the form of spacers (4).

Claim 4

Dependent Claim 32 words

Sound-absorbing panel according to claim 1, wherein said first attaching means attach said synthetic fiber web (1) to said synthetic foam mat (2) along given lines (3) defining substantially uniform areas therebetween.

Claim 5

Dependent Claim 33 words

Sound-absorbing panel according to claim 1, wherein said first attaching means attach said synthetic fiber web (1) to said synthetic foam mat (2) along given lines (3) in accordance with a square pattern.

Claim 6

Dependent Claim 23 words

Sound-absorbing panel according to claim 1, including a liquid synthetic material (6) sprayed on said synthetic foam mat forming a continuous, water-repellent skin.

Claim 7

Dependent Claim 14 words

Sound-absorbing panel according to claim 5, wherein said synthetic skin is a polyurethane skin.

Claim 8

Dependent Claim 35 words

Sound-absorbing panel according to claim 1, including a water-proof nylon web (7) covering said synthetic foam mat (2), and third means for connecting said water-proof nylon web to said synthetic foam mat at least pointwise.

Claim 9

Dependent Claim 29 words

Sound-absorbing panel according to claim 1, wherein said synthetic foam mat (2) is formed of a material from the group consisting of polyurethane foam, melamine foam and polyamide foam.

Claim 10

Dependent Claim 27 words

Sound-absorbing panel according to claim 1, wherein said synthetic foam mat (2) is formed of a material from the group consisting of glass wool and synthetic wool.

Claim 11

Dependent Claim 18 words

Sound-absorbing panel according to claim 1, wherein said synthetic fiber web (1) is formed of permanently deformable material.

Claim 12

Dependent Claim 16 words

Sound-absorbing panel according to claim 1, wherein said synthetic fiber web (1) is formed of polyester.

Claim 13

Dependent Claim 25 words

Sound-absorbing panel according to claim 1, wherein said distance between said synthetic fiber web (1) and the wall is substantially between 20 and 30 mm.

Claim 14

Dependent Claim 69 words

Sound-absorbing panel, comprising a synthetic foam mat having a given size, a synthetic fiber web having substantially said given size, a sewn seam attaching said synthetic foam mat to said synthetic fiber web at least pointwise in a given pattern, and second means for attaching the sound-absorbing panel to a wall for damping sound radiation of the wall while maintaining a distance between the sound-absorbing panel and the wall.

Claim 15

Dependent Claim 69 words

Sound-absorbing panel, comprising a synthetic foam mat having a given size, a synthetic fiber web having substantially said given size, a sewn seam attaching said synthetic foam mat to said synthetic fiber web at least pointwise in a given pattern, and second means for attaching the sound-absorbing panel to a wall for damping sound radiation of the wall while maintaining a distance between the sound-absorbing panel and the wall.

Claim 16

Dependent Claim 69 words

Sound-absorbing panel, comprising a synthetic foam mat having a given size, a synthetic fiber web having substantially said given size, a welded seam attaching said synthetic foam mat to said synthetic fiber web at least pointwise in a given pattern, and second means for attaching the sound-absorbing panel to a wall for damping sound radiation of the wall while maintaining a distance between the sound-absorbing panel and the wall.

Claim 17

Dependent Claim 69 words

Sound-absorbing panel, comprising a synthetic foam mat having a given size, a synthetic fiber web having substantially said given size, a welded seam attaching said synthetic foam mat to said synthetic fiber web at least pointwise in a given pattern, and second means for attaching the sound-absorbing panel to a wall for damping sound radiation of the wall while maintaining a distance between the sound-absorbing panel and the wall.

Claim 18

Dependent Claim 32 words

Sound-absorbing panel according to claim 13, wherein said first attaching means attach said synthetic fiber web (1) to said synthetic foam mat (2) along given lines (3) defining substantially uniform areas therebetween.

Claim 19

Dependent Claim 32 words

Sound-absorbing panel according to claim 14, wherein said first attaching means attach said synthetic fiber web (1) to said synthetic foam mat (2) along given lines (3) defining substantially uniform areas therebetween.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1992-02-21	1992-08-22	1993-02-21	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1996-02-21	1996-08-22	1997-02-21	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	2000-02-21	2000-08-22	2001-02-21	$7700.00	Window Closed / Lapsed

Sound-absorbing panel

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