Composite sound barrier panel

Acoustics – Sound-modifying means – Sound absorbing panels

Reexamination Certificate

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Details

C181S210000, C052S144000, C428S537100

Reexamination Certificate

active

07913812

ABSTRACT:
A composite sound barrier panel includes a concrete substrate provided for strength and a noise attenuation layer bonded thereto. The noise attenuation layer in one embodiment is a concrete mixture of a fiber composite material and cement. In another embodiment, recycled wood chips are added to the mixture. A plurality of identical panels are pre-cast in a mold for use in forming a noise abatement wall, particularly between a residential neighborhood and a highway.

REFERENCES:
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patent: 4325457 (1982-04-01), Docherty et al.
patent: 4513040 (1985-04-01), Lankard
patent: 4607466 (1986-08-01), Allred
patent: 5678363 (1997-10-01), Ogorchock et al.
patent: 6827179 (2004-12-01), Drake et al.
patent: 2003/0097806 (2003-05-01), Brown
patent: 2006/0048997 (2006-03-01), Foster et al.
patent: 2006/0188740 (2006-08-01), Kuan
patent: 2007/0137139 (2007-06-01), Tierney et al.

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