Housing lining

Details Housing lining Housing lining

1994-02-02

1995-04-25

Dang, Khanh

Acoustics

Sound-modifying means

Sound absorbing panels

181293, E04B 182

Patent

active

054101115

ABSTRACT:
A housing lining is disclosed with a self-supporting and airborne sound-absorbing layer of fibers. The fibers are compressed and glued together at least in the region of the edge surrounding the layer on the outside, to form an essentially pore-free supporting frame. The supporting frame may be provided with a cup-shaped bulge which comprises sound absorption surfaces which have a sound impedance of 20 to 200 Rayl.

REFERENCES:
patent: 4242398 (1980-12-01), Segawa et al.
patent: 4420526 (1983-12-01), Schilling et al.
patent: 4584232 (1985-04-01), Frank et al.
patent: 4715473 (1987-12-01), Tschudin-Mahrer
patent: 4867271 (1989-09-01), Tschudin-Mahrer
patent: 5298694 (1994-03-01), Thompson et al.

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