Music – Instruments – Electrical musical tone generation
Patent
1989-05-12
1990-07-17
Perkey, W. B.
Music
Instruments
Electrical musical tone generation
G10H 318, G10H 324
Patent
active
049413880
ABSTRACT:
A sustaining device is disclosed for prolonging the vibration of a string of a stringed musical instrument, such as an electrical guitar having a magnetic pickup responsive to a change in the magnetic field caused by vibration of the string. The sustaining device includes the magnetic string driver disposed in magnetic proximity to the pickup. an amplifier is coupled between the pickup and the driver for amplifying current from the pickup to the driver to impart sufficient magnetic drive energy to the driver to produce sustained vibration of the string. An unbalancing device is provided for creating a magnetic imbalance between the pickup and the driver to minimize direct magnetic feedback between the pickup and the driver. This unbalancing device can take the form of an unbalanced pickup, an unbalanced driver, or a shunt plate disposed between the pickup and the driver.
REFERENCES:
patent: 472019 (1892-03-01), Ohmart
patent: 1002036 (1911-08-01), Clement
patent: 1893895 (1933-01-01), Hammond
patent: 2001723 (1935-05-01), Hammond
patent: 2600870 (1952-06-01), Hathaway et al.
patent: 2896491 (1959-07-01), Lover
patent: 3185755 (1965-05-01), Williams et al.
patent: 3612741 (1971-10-01), Marshall
patent: 3742113 (1973-06-01), Cohen
patent: 3813473 (1974-05-01), Terymenko
patent: 4075921 (1978-02-01), Heet
patent: 4236433 (1980-12-01), Holland
patent: 4484508 (1984-11-01), Nourney
patent: 4852444 (1989-08-01), Hoover et al.
Osborne, Description of Infinite Guitar Sustain Device, 1987.
Lawrence, "Kramer Floyd Rose Sustainer Solid Body Guitar", Guitar World, Jul. 1989.
Osborne, Description of a 1971 Les Paul Recording Guitar.
Hoover Alan A.
Osborne Gary T.
Indiano E. Victor
Perkey W. B.
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