Method for producing a sound insulation component of variable thichness
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United States of America Patent
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Issued Date -
Aug 5, 2004
app pub date -
Dec 22, 2003
filing date -
Dec 23, 2002
priority date (Note) -
Abandoned
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Abstract
Method for producing a sound insulation component of the spring-mass type. Additions of heavy material are locally deposited on a layer of heavy material having a substantially constant thickness producing. The additions of heavy material form an excess thickness on said layer of heavy material having a substantially constant thickness, in order to form therewith a sound insulation layer having a variable thickness. Then, a resilient layer is deposited. The resilient layer forms a sound absorber on the sound insulation layer, and connecting the sound absorption layer and the sound insulation layer together.
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