Acoustic laminate

Details Acoustic laminate Acoustic laminate

2011-01-25

2011-01-25

Edwards, N. (Department: 1798)

Acoustics

Sound-modifying means

Sound absorbing panels

C181S284000, C181S286000, C428S220000, C428S297400

Reexamination Certificate

active

07874402

ABSTRACT:
According to one aspect of the present invention there is provided an acoustic laminate including: a first layer of viscoelastic acoustic barrier material; a sound absorbing/decoupling batt affixed to the first layer of viscoelastic acoustic barrier material, the batt at rest defining a batt plane; the batt including a plurality of batt fibers; the batt further including retaining fibers, wherein the batt fibers and/or retaining fibers are disposed perpendicular to the batt plane and having end portions thereof disposed at a batt surface, the end portions affixed to the viscoelastic barrier material so that either the first layer of viscoelastic acoustic barrier material or the sound absorbing/decoupling batt itself may be retained in spaced relation from a mounting surface when the laminate is so mounted, the retention being achieved in any orientation by bearing a mass load of the batt or first layer of viscoelastic material along the axis of the affixed batt fibers and/or retaining fibers.

REFERENCES:
patent: 2807595 (1957-09-01), Brown
patent: 6109389 (2000-08-01), Hiers et al.
patent: 6296076 (2001-10-01), Hiers et al.
patent: 2006/0154057 (2006-07-01), Nonninger
patent: 2008/0116006 (2008-05-01), Doneux et al.
patent: 2008/0121461 (2008-05-01), Gross et al.

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