Sound absorbing structural element

Details Sound absorbing structural element Sound absorbing structural element

1983-09-15

1984-10-30

Van Balen, William J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Honeycomb-like

181288, 296211, 296214, 428119, 428157, 428192, B32B 312, B32B 302

Patent

active

044799926

ABSTRACT:
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.

REFERENCES:
patent: 1912931 (1933-06-01), Clay
patent: 2045733 (1936-06-01), Spafford
patent: 2742387 (1956-04-01), Giuliani
patent: 2793718 (1957-05-01), Pajak
patent: 3687223 (1972-08-01), Streck
patent: 3700067 (1972-10-01), Dobbs et al.
patent: 4091160 (1978-05-01), Koss
patent: 4093482 (1978-06-01), Ogata et al.
patent: 4111081 (1978-09-01), Hilliard et al.

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