Acoustics – Diaphragm and enclosure – With sound-absorbing means
Reexamination Certificate
2007-09-18
2007-09-18
San Martin, Edgardo (Department: 2837)
Acoustics
Diaphragm and enclosure
With sound-absorbing means
C181S199000, C381S353000, C381S354000
Reexamination Certificate
active
11107211
ABSTRACT:
A loudspeaker cabinet with a laminated internal brace which has a first rigid layer coupled to a first exterior panel of the cabinet, a second rigid layer coupled to an a second exterior panel of the cabinet, and a damping layer affixed between the rigid layers where they overlap. Vibration, flexure, and expansion/contraction of the cabinet are damped by shearing forces applied to the damping layer as the rigid layers move in opposite, parallel directions.
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Calderwood Richard C.
Martin Edgardo San
STEP Technologies Inc.
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