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US 6,664,452 B1Granted
Acoustic guitar having a composite soundboard
AssigneeC. F. Martin & Company, Inc.
InventorTimothy A. Teel
Life of this patent
Estimating the term…
Abstract
An acoustic guitar having a hollow body constructed with a pre-finished graphite soundboard and a pre-finished high pressure laminate backboard and sidewall. The graphite soundboard provides the acoustic guitar with a unique appearance and enhances durability without adversely affecting the tonal qualities of the guitar. A bracing pattern particularly for use with the graphite soundboard is also provided.
Claims20
An acoustic guitar, comprising:
- a hollow body and an elongate neck extending from said hollow body;
- said hollow body having a composite soundboard with a substantially planar underside and a soundhole extending therethrough, said composite soundboard being a laminate sheet material made of multiple layers of epoxy impregnated graphite fibers, said graphite fibers being unidirectionally-oriented within each layer;
- said composite soundboard having wooden bracing adhesively secured to and depending from said underside of said composite soundboard;
- said wooden bracing including an X-shaped cross brace with four legs defining four quadrants on said soundboard, a pair of said legs define a first quadrant in which said soundhole is located, and the other pair of said legs define an opposite quadrant on the soundboard remote from said neck;
- and
- said wooden bracing including an A-frame brace located in said first quadrant on said soundboard between said soundhole and said neck, said A-frame brace cooperating with said cross brace to completely surround and reinforce said soundhole.
3 more elements
An acoustic guitar, comprising:
- a hollow body and an elongate neck extending from said hollow body;
- said hollow body having a composite soundboard with a substantially planar underside and a soundhole extending therethrough;
- said composite soundboard being a laminate sheet material made of multiple layers of epoxy impregnated graphite fibers, said graphite fibers being unidirectionally-oriented within each layer;
- and
- said hollow body having a backboard spaced from the soundboard and a sidewall extending between and connecting said soundboard and backboard, each of said backboard and sidewall being constructed of a pre-finished high pressure laminate material.
2 more elements
Dependencies are inferred from the claim text.