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US 6,284,957 B1Granted
Carbon fiber cello
OwnerLuis G. Leguiainventor
Life of this patent
Estimating the term…
Abstract
A carbon fiber cello has upper, middle, and lower bouts which smoothly merge into each other, a neck, back and sides which are molded in one piece from carbon fibers in which the back and sides are joined by smooth, round corners. The interior resonant cavity is free of protusions with the exception of the bass bar, soundpost, endpin support, and endpin.
Claims27
A cello, comprising:
- a body and a neck;
- said neck integrally including a peg box;
- said body comprising a soundboard, a back, and sides;
- said soundboard being molded of carbon fibers, being smoothly outwardly arched longitudinally and transversely, and including a pair of f-holes extending therethrough;
- said back being smoothly outwardly arched longitudinally and transversely;
- said sides converging from the perimeter of said soundboard to the perimeter of said back with said back and said sides merging together via smoothly rounded corners;
- said neck, back, and sides being integrally molded of carbon fibers as a single unit, and said soundboard being fixedly attached to said sides to form said body;
- said body enclosing a resonant cavity bounded by a top formed by said soundboard, a bottom formed by said back, and a sidewall formed by said sides, said sidewall being configured to comprise an upper bout contour and a lower bout contour integrally joined together by a middle bout contour, said contour of said upper bout being smoothly, convexly curved and including a pair of spaced-apart end portions, said contour of said lower bout being smoothly, convexly curved and including a pair of spaced-apart end portions, and said contour of said middle bout comprising a pair of smoothly curved, inwardly bowed, concave midsections, each of said pair of concave midsections being disposed on opposite sides of said middle bout, and each of said pair of concave midsections including first and second end portions, said first end portions of said pair of concave midsections being smoothly and integrally joined to a respective one of said pair of end portions of said upper bout contour, and said second end portions of said pair of concave midsections being smoothly and integrally joined to a respective one of said pair of end portions of said lower bout contour, wherein all of the junctures of said end portions of said upper and lower bout contours with said end portions of said middle bout contours are characterized by a smooth change from convexity to concavity with no external cornices nor internal corners;
- an endpin support integrally formed within said body;
- an endpin housing;
- an endpin adjustably secured to and guided by said endpin housing and said endpin support;
- a set of tuning pegs adjustably mounted to said peg box;
- a fingerboard fixed to said neck;
- a nut located proximate the juncture of said fingerboard and said peg box;
- a bridge supported by said soundboard;
- a set of strings extending over said bridge and said nut, and tunably attached to said set of pegs;
- a bass bar affixed to the inner surface of said soundboard;
- and
- a soundpost fit between said soundboard and said back.
16 more elements
A carbon fiber cello, comprising:
- a neck, back, and sides being integrally molded in one piece of carbon fibers, said back being slightly concave and rounded, and said back and said sides being joined together by smoothly rounded edges;
- a soundboard molded of carbon fibers, said soundboard being upwardly bowed and including a pair of f-holes;
- said soundboard being mounted to said sides opposite to said back to form a cello body having an upper bout and a lower bout integrally joined together by a pair of smoothly curved, inwardly bowed midsections with no cornices, said body enclosing a resonant cavity;
- a carbon fiber endpin holder mounted on the inner wall of said side;
- a carbon fiber saddle mounted on said front adjacent said endpin holder;
- a hollow carbon fiber bass bar mounted to said front within said cavity;
- a hollow, carbon fiber bridge placed on said front outside of said cavity;
- a carbon fiber sound post, said sound post being placed within said cavity between said front and said back in the vicinity of the right foot of said bridge;
- a fingerboard molded of carbon fibers, said fingerboard being upwardly arched with three depending ridges on the underside for strength, said fingerboard being glued to said neck;
- and
- a nut mounted on said fingerboard adjacent the end of fingerboard remote from said body.
8 more elements
A musical instrument of the violin family, said violin family consisting of a violin, a viola, a cello, and a string bass, comprising:
- a body and a neck;
- said neck integrally including a peg box;
- said body comprising a soundboard, a back, and sides;
- said soundboard being molded of carbon fibers, being smoothly outwardly arched longitudinally and transversely, and including a pair of f-holes extending therethrough;
- said back being smoothly outwardly arched longitudinally and transversely;
- said sides converging from the perimeter of said soundboard to the perimeter of said back with said back and said sides merging together via smoothly rounded corners;
- said neck, back, and sides being integrally molded of carbon fibers as a single unit, and said soundboard being fixedly attached to said sides to form said body;
- said body enclosing a resonant cavity bounded by a top formed by said soundboard, a bottom formed by said back, and a sidewall formed by said sides, said sidewall being configured to comprise an upper bout contour and a lower bout contour integrally joined together by a middle bout contour, said contour of said upper bout being smoothly, convexly curved and including a pair of spaced-apart end portions, said contour of said lower bout being smoothly, convexly curved and including a pair of spaced-apart end portions, and said contour of said middle bout comprising a pair of smoothly curved, inwardly bowed, concave midsections, each of said pair of concave midsections being disposed on opposite sides of said middle bout, and each of said pair of concave midsections including first and second end portions, said first end portions of said pair of concave midsections being smoothly and integrally joined to a respective one of said pair of end portions of said upper bout contour, and said second end portions of said pair of concave midsections being smoothly and integrally joined to a respective one of said pair of end portions of said lower bout contour, wherein all of the junctures of said end portions of said upper and lower bout contours with said end portions of said middle bout contours are characterized by a smooth change from convexity to concavity with no external cornices nor internal corners;
- an endpin support integrally formed within said body;
- an endpin housing;
- an endpin adjustably secured to and guided by said endpin housing and said endpin support;
- a set of tuning pegs adjustably mounted to said peg box;
- a fingerboard fixed to said neck;
- a nut located proximate the juncture of said fingerboard and said peg box;
- a bridge supported by said soundboard;
- a set of strings extending over said bridge and said nut, and tunably attached to said set of pegs;
- a bass bar affixed to the inner surface of said soundboard;
- and
- a soundpost fit between said soundboard and said back.
16 more elements
Dependencies are inferred from the claim text.