# US 8,772,613 B2 · Guitar with double carve sound board

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- Number: US 8,772,613 B2
- Document ID: US8772613B2
- Status: Granted
- Kind: B2
- Application number: 12/661,328
- Filed: 2010-03-15
- Published: 2011-09-15
- Granted: 2014-07-08
- Earliest claimed: 2010-03-15
- Assignees: Gibson Brands, Inc.
- Applicants: Richard Gembar
- Inventors: Richard Gembar
- Web page: https://patentgrep.com/patent/US8772613B2

## CPC

- G10D 1/08: Guitars
- G10D 3/02: Resonating means, horns or diaphragms
- G10D 3/06: Necks; Fingerboards, e.g. fret boards
- G10D 3/22: Material for manufacturing stringed musical instruments; Treatment of the material
- G10D: STRINGED MUSICAL INSTRUMENTS; WIND MUSICAL INSTRUMENTS; ACCORDIONS OR CONCERTINAS; PERCUSSION MUSICAL INSTRUMENTS; AEOLIAN HARPS; SINGING-FLAME MUSICAL INSTRUMENTS; MUSICAL INSTRUMENTS NOT OTHERWISE PROVIDED FOR (organs, harmoniums or similar wind musical instruments with associated blowing apparatus G10B; pianos, harpsichords, spinets or similar stringed musical instruments with one or more keyboards G10C; automatic musical instruments G10F; electrophonic musical instruments in which tones are generated by electromechanical means G10H)

## Abstract

A stringed musical instrument body with a front plate having an integral cavity defined by a tail end inner edge, a neck end inner edge, a bass side inner edge, and a treble side inner edge is provided. The cavity cooperates with a back plate to form a resonance chamber. A method for making the stringed musical instrument body is also presented. In many instances, the stringed musical instrument is a guitar.

## Claims

### Claim 1

A body for a stringed musical instrument comprising:
a wooden front plate having an exterior and an interior, wherein the interior comprises a tail end inner edge, a neck end inner edge, a bass side inner edge, and a treble side inner edge, further wherein the tail end inner edge, neck end inner edge, bass side inner edge and treble side inner edge define an integral cavity, and
a back plate,
wherein the integral cavity and the back plate cooperate to form a resonance chamber.

### Claim 2 (depends on 1)

The body of claim 1 wherein the resonance chamber is an inverted horseshoe shape.

### Claim 3 (depends on 2)

The body of claim 2 wherein the tail end inner edge, neck end inner edge, bass side inner edge, and treble side inner edge are slanted such that the integral cavity gradually increases in depth.

### Claim 4 (depends on 2)

The body of claim 2 wherein the tail end inner edge, neck end inner edge, bass side inner edge, and treble side inner edge are straight such that the integral cavity is uniform in depth.

### Claim 5 (depends on 1)

The body of claim 1 further wherein the neck end inner edge defines a bridge support.

### Claim 6 (depends on 5)

The body of claim 5 wherein the bridge support comprises at least one edge protrusion.

### Claim 7 (depends on 6)

The body of claim 6 wherein the edge protrusion is rounded in shape.

### Claim 8 (depends on 1)

The body of claim 1 wherein the integral cavity extends from the tail end inner edge to a center axis of the front plate.

### Claim 9 (depends on 1)

The body of claim 1 further comprising a sidewall.

### Claim 10 (depends on 1)

The body of claim 1 wherein the exterior of the front plate is curved.

### Claim 11 (depends on 1)

The body of claim 1 wherein the resonance chamber is symmetrical around a longitudinal axis.

### Claim 12 (depends on 1)

The body of claim 1 wherein the front plate comprises a single piece of material.

### Claim 13 (depends on 1)

The body of claim 1 wherein a maximum depth of the integral cavity is greater than fifty percent (50%) of a maximum depth of the front plate.

### Claim 14 (depends on 1)

The body of claim 1 wherein a narrowest depth of a solid portion of the front plate is about 0.18 inch.

### Claim 15 (depends on 1)

The body of claim 1 wherein a widest depth of a solid portion of the front plate is about 0.75 inch.

### Claim 16 (depends on 1)

The body of claim 1 wherein the front plate comprises maple.

### Claim 17

A stringed musical instrument comprising:
a body having a wooden front plate with an exterior and an interior, wherein the interior of the front plate comprises a tail end inner edge, a neck end inner edge, a bass side inner edge, and a treble side inner edge, further wherein the tail end inner edge, neck end inner edge, bass side inner edge and treble side inner edge define an integral cavity and a back plate, wherein the integral cavity and the back plate cooperate to form a resonance chamber;
a neck attached with the body, the neck configured to receive at least one string at a first end; and
a bridge fitted with the front plate, the bridge configured to receive at least one string at a second end opposite the first end, wherein the at least one string is extended over at least a portion of the neck and the body.

### Claim 18

A method of constructing a body for a stringed musical instrument, comprising the steps of:
constructing an integral cavity in an interior of a wooden front plate, wherein the integral cavity is defined by a tail end inner edge, a neck end inner edge, a bass side inner edge, and a treble side inner edge; and
attaching a back plate to the constructed front plate such that the integral cavity and the back plate cooperate to form a resonance chamber.