Noise-reducing covering for vehicle interior

Details Noise-reducing covering for vehicle interior Noise-reducing covering for vehicle interior

1994-06-30

1996-09-10

Dang, Khanh

Acoustics

Sound-modifying means

Sound absorbing panels

181294, E04B 182

Patent

active

055548300

ABSTRACT:
The method according to the invention for the manufacture of a noise-transmission-reducing covering (1) with essentially an insulation composite (3) and a carpet covering (5) proposes to configure both the carpet covering (5) and the insulation composite (3) so that a sound field (17) can couple with a spongy mass layer (11) and be absorbed into this layer. A preferred embodiment has at least one suitable insulating barrier coating (19), in order at least to protect the spongy mass layer (11) from contamination.

REFERENCES:
patent: 3952126 (1976-04-01), Dycks
patent: 4515239 (1985-05-01), Blatt et al.
patent: 4574915 (1986-03-01), Gahlau et al.
patent: 4735284 (1988-04-01), Gahlau et al.
patent: 4825974 (1989-05-01), Huffman et al.
patent: 4940112 (1990-07-01), O'Neill
patent: 4966799 (1990-10-01), Lucca et al.
patent: 5088576 (1992-02-01), Potthuff et al.
International Search Report dated Sep. 11, 1991.

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