Soundboard of composite fibre material construction for...

Details Soundboard of composite fibre material construction for... Soundboard of composite fibre material construction for...

2007-04-24

2007-04-24

Lockett, Kimberly (Department: 2837)

Music

Instruments

Stringed

Reexamination Certificate

active

11195142

ABSTRACT:
The invention relates to a soundboard of composite fibre material construction for acoustic stringed instruments, comprising a core plate and a fibre laminate which is provided on at least one of the two outer faces of the core plate and is composed of long fibres embedded in a carrier material, the core plate having a lower average density than the fibre laminate. In this case a part of the core plate including the two end regions of the central zone of the core plate has a longitudinal compression strength which is greater than the longitudinal compression strength of the remaining part of the core plate. In this way a construction is achieved which is particularly stable under compression whilst at the same time having an improved acoustic quality.

REFERENCES:
patent: 4353862 (1982-10-01), Kaman, II
patent: 4408516 (1983-10-01), John
patent: 6750385 (2004-06-01), Sugden
patent: 20113495 (2001-12-01), None
patent: 1 182 642 (2001-08-01), None
patent: WO91/00589 (1999-01-01), None

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