Acoustic insulation board consisting of foam

Details Acoustic insulation board consisting of foam Acoustic insulation board consisting of foam

1987-12-30

1989-09-19

Fuller, B. R.

Acoustics

Sound-modifying means

Sound absorbing panels

181286, 181294, E04B 182

Patent

active

048672718

ABSTRACT:
An acoustic insulating board of foam with structured bulge-forming surface in the form of regions (I, II) of different thickness. In order to obtain differing acoustic efficiency, the acoustic insulating board comprises plurality of individual boards (1) arranged one above the other, which boards are compressed in the regions (I) of lesser thickness and are fused together on their surface. In the regions (II) of larger thickness, the boards lie loosely on one another so that a top side facing in the direction of the structural bulging of a central individual board (1) is profiled in the regions of greater thickness.

REFERENCES:
patent: 3833086 (1974-09-01), Giraudeau
patent: 4242398 (1980-12-01), Segawa et al.
patent: 4273213 (1981-06-01), Munz
patent: 4281739 (1981-08-01), Keiser
patent: 4493471 (1985-01-01), McInnis
patent: 4705139 (1987-11-01), Gahlau et al.

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