Acoustics – Diaphragm – Critically defined material or coating
Reexamination Certificate
2011-03-29
2011-03-29
Enad, Elvin (Department: 2832)
Acoustics
Diaphragm
Critically defined material or coating
C181S157000, C181S169000, C442S333000, C428S292100, C428S292400
Reexamination Certificate
active
07913808
ABSTRACT:
A water-resistant composite paper, suitable for use as a loudspeaker component, is made from a composition including wood pulp, hydrophobic fibers, and stiffening fibers that retain stiffness when wet. In some examples, fibrillated acrylic fibers and glass fibers are used.
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International Search Report and Written Opinion dated May 11, 2009, issue for International Application No. PCT/US2009/034278, filed Feb. 17, 2009.
International Preliminary Report on Patentability dated Oct. 7, 2010, PCT/US2009/034278, 7 pages.
Evans Robert E.
Fehervari Agota F.
Parrish Samuel D.
Schad Martin J.
Temple Mark P.
Bose Corporation
Enad Elvin
Phillips Forrest M
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