Method for the manufacture of a light-weight sheet

Details Method for the manufacture of a light-weight sheet Method for the manufacture of a light-weight sheet

2006-06-13

2010-02-16

Donels, Jeffrey (Department: 2832)

Acoustics

Sound-modifying means

Sound absorbing panels

C181S213000, C181S222000, C181S286000

Reexamination Certificate

active

07661510

ABSTRACT:
The invention is directed to a method for manufacturing a sandwich like constructed light weight sheet with sound absorption characteristics, by which an acoustically absorbing cover layer, a substantially grid shape configured first intermediate layer and a bottom layer are bound together, wherein the light weight sheet has a defined surface.

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patent: 2009/0050404 (2009-02-01), Corin
patent: A-3935120 (1991-04-01), None

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