Stringed instrument construction

Details Stringed instrument construction Stringed instrument construction

Filed on

2007-04-19

Date issued

2009-06-23

Examiner

Donels, Jeffrey (Department: 2837)

Patent Class

Music

SubClass

Instruments

SubSubClass

Stringed

Other Related Categories

C084S267000

Type

Reexamination Certificate

Status

active

Patent number

07550660

Description

ABSTRACT:
An improved hollow-bodied stringed instrument body having a substantially free edge in the lower bout which reduces the coupling of the resonances of the front plate, back plate, and enclosed volume of air. A selected number of holes of a selected shape create a substantially free edge in the lower bout of the front plate. This substantially free edge reduces the large-amplitude displacement of these plates that occurs due to low frequency resonance coupling. Placement of the free edge allows high frequency resonance of the front plate, which is not due to coupling, to contribute to the tone of the instrument. Reducing the large-amplitude displacement of the plates reduces bass-heavy tone and feedback.

REFERENCES:
patent: 4317402 (1982-03-01), McPherson, Sr.
patent: 6046392 (2000-04-01), Saul

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