Guitar with dual sound chambers
OwnerWilbur J. Justusinventor
Life of this patent
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Abstract
A guitar is formed with a one-piece molded fiberglass body having nested oppositely facing inner and outer concavities. A sound board is bonded to one side of the body to enclose the outer concavity and a substantially smaller back is bonded to the other side of the body to enclose the smaller concavity. The inner concavity has a peripheral rim which is recessed to receive the back allowing the back and exterior of the body to be uniformly coated to give the appearance of blending together as a single piece. An optional sound transmitting post may extend between the back and a central portion of the inner concavity. The inner concavity is provided with small openings or f-holes for sound communication between the concavities and the sound board has the conventional central opening.
Claims10
A guitar or similar plucked string instrument having a body portion with at least two distinct sound chambers and comprising a contour molded one piece fiberglass member having nested oppositely opening concavities each terminating in first and second spaced apart generally planar rims for receiving a relatively flat sound board and a relatively flat back respectively, a relatively flat sound board having a centrally located air passing opening and a periphery mateable with the first rim, and a relatively flat opening-free back having a periphery mateable with the second rim.
The method of fabricating a stringed musical instrument comprising the steps of;
- molding a contoured fiberglass body portion to have a pair of nested oppositely opening cavities with one of the cavities encircling the other of the cavities like a moat and with each cavity having a generally flat outer peripheral rim;
- enclosing said one cavity by bonding a generally flat sound board to the one cavity rim;
- enclosing said other cavity by bonding a generally flat back to the other cavity rim;
- affixing a neck portion to both the sound board and the body portion;
- and
- uniformly coating the back and the exterior portion of the body.
Dependencies are inferred from the claim text.