Music – Instruments
Patent
1982-12-03
1986-12-30
Isen, Forester W.
Music
Instruments
84 114, 84DIG24, 84291, G10H 300
Patent
active
046320024
ABSTRACT:
An improved, easily-transportable, electric double bass viol having a non-resonant body and rigidly supported fingerboard for enhanced string sustain and tonal brilliance, collapsible body extensions for providing the customary physical dimension and reference points found in traditional double basses to render the instrument easily playable by bassists trained on traditional double basses, and a piezoelectric bridge pickup structure having a piezoelectric element and flexible and inflexible portions such that string motion is transmitted to the piezoelectric element while acoustic energy in the body is substantially prevented from exciting the piezoelectric element, thereby eliminating unwanted acoustic feedback, while providing a tonal characteristic similar to an acoustic double bass.
REFERENCES:
patent: 3113990 (1963-12-01), Zanessi
patent: 3325580 (1967-06-01), Barcus et al.
patent: 3538807 (1970-11-01), Francis
patent: 3691285 (1972-09-01), Larrison
patent: 3769871 (1973-11-01), Cawthorn
patent: 3833751 (1974-09-01), Chapman
patent: 4147084 (1979-04-01), Underwood
patent: 4149442 (1979-04-01), Boshco
patent: 4192213 (1980-03-01), Steinberger
patent: 4235143 (1980-11-01), Hoexter
patent: 4242938 (1981-01-01), Van Zalinge
patent: 4254683 (1981-03-01), Nulman
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