Sound absorbing structural element

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 4479992
SERIAL NO

06532803

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A sound insulating panel is provided having a support layer of honeycomb material, and a pair of covering layers, at least one of which is air-permeable. The support, honeycomb layer has a compressive strength greater than the compressive strength of each of the covering layers, in a direction transverse to the faces thereof, and has a tensile strength which is lesser, in the general direction parallel to the faces, than that each of the covering layers. The support layer is compacted over a part of its extent to a substantially closed layer of reduced thickness, this being, preferably, in the region of the border. A method of making an insulating construction element as described.

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Patent Owner(s)

Patent OwnerAddress
MATEC HOLDING AGCH-8700 KÜSNACHT

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ferrand, Guy Triel sur Seine, FR 3 40
H/a/, eseker Willy Alheim-Heinebach, DE 1 30
Vignal, Robert Gaillon/F/Moncient, FR 1 30

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