Noise reduction lining

Details Noise reduction lining Noise reduction lining

1983-09-14

1985-05-07

Fuller, Benjamin R.

Acoustics

Sound-modifying means

Sound absorbing panels

181286, 181288, E04B 182

Patent

active

045152390

ABSTRACT:
The invention relates to a noise reduction lining of the kind for use in passenger compartments of automobiles for absorbing engine noise of five or six cylinder combustion engines, and comprises between a cover layer and a base layer an absorption layer of open-pored elastic material into which is embedded a perforsted extinction layer.

REFERENCES:
patent: 2285423 (1942-06-01), Esser
patent: 3058704 (1962-10-01), Bergstedt

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