Acoustics – Sound-modifying means – Sound absorbing panels
Reexamination Certificate
2011-07-19
2011-07-19
San Martin, Edgardo (Department: 2832)
Acoustics
Sound-modifying means
Sound absorbing panels
C181S204000, C181S290000, C296S039300
Reexamination Certificate
active
07980358
ABSTRACT:
The invention relates to a lightweight sound insulating lining (1) for a body component of a motor vehicle, in particular in the form of a lightweight front wall lining, comprising a sound absorbing layer, a sound insulating layer which is directly connected to the sound absorbing layer and substantially air tight, as well as an adjoining foam layer (1.3), wherein the sound absorbing layer (1.1) is made of a porous absorber, preferably a fiber fleece or a foam, which has an air permeability in the range of 150 to 2000 liters/m2s at a test pressure of 100 Pa. The sound insulating layer (1.2) is formed by an integral skin layer of the foam layer (1.3) with a thickness of at least 0.5 mm, and is integrally joined to the porous absorber by back-foaming the porous absorber substantially without foam penetration therethrough. Furthermore, a method for manufacturing such a lining is disclosed.
REFERENCES:
patent: 3816233 (1974-06-01), Powers
patent: 3936555 (1976-02-01), Smith, II
patent: 4101704 (1978-07-01), Hiles
patent: 4438166 (1984-03-01), Gluck et al.
patent: 4476183 (1984-10-01), Holtrop et al.
patent: 4529639 (1985-07-01), Peoples et al.
patent: 5064714 (1991-11-01), Yamaguchi et al.
patent: 5094318 (1992-03-01), Maeda et al.
patent: 5518806 (1996-05-01), Eder et al.
patent: 5554831 (1996-09-01), Matsukawa et al.
patent: 5817408 (1998-10-01), Orimo et al.
patent: 5925207 (1999-07-01), Itoh et al.
patent: 5932331 (1999-08-01), Jones et al.
patent: 6572723 (2003-06-01), Tilton et al.
patent: 6659223 (2003-12-01), Allison et al.
patent: 6669265 (2003-12-01), Tilton et al.
patent: 6695374 (2004-02-01), Gebreselassie et al.
patent: 6802389 (2004-10-01), Tompson et al.
patent: 6846169 (2005-01-01), Kobayashi et al.
patent: 6955845 (2005-10-01), Poole et al.
patent: 7055649 (2006-06-01), Tompson et al.
patent: 7070848 (2006-07-01), Campbell
patent: 7080712 (2006-07-01), Tsuiki et al.
patent: 7318498 (2008-01-01), Woodman et al.
patent: 7320739 (2008-01-01), Thompson et al.
patent: 7566475 (2009-07-01), Connelly et al.
patent: 7585559 (2009-09-01), Schroeder et al.
patent: 2005/0093203 (2005-05-01), Kobayashi et al.
patent: 2006/0118355 (2006-06-01), Blomeling et al.
patent: 2006/0289231 (2006-12-01), Priebe et al.
patent: 2007/0065644 (2007-03-01), Blomeling
patent: 2007/0287001 (2007-12-01), Carlson et al.
patent: 2008/0264555 (2008-10-01), Blomeling
patent: 2010/0108437 (2010-05-01), Bayle et al.
patent: 27 35 153 (1979-02-01), None
patent: 197 42 198 (1998-04-01), None
patent: 10 2004 054 646 (2006-06-01), None
patent: 10 2005 056 840 (2007-04-01), None
International Search Report, Mar. 9, 2008.
Gross Thomas
Hansen Michael
Soltau Dirk
Ulbrich Dagmar
Bayer MaterialScience AG
Collard & Roe P.C.
Martin Edgardo San
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