Tunable resonator plug

Details Tunable resonator plug Tunable resonator plug

1991-10-18

1993-02-23

Shoop, Jr., William M.

Music

Instruments

Rigid vibrators

84386, G10D 1308

Patent

active

051892367

ABSTRACT:
An improved resonator tuning plug for the resonators of keyboard percussion instruments. An inexpensive plug suitable for the entire range of the keyboard instrument, offering quick tuning changes and secure locking of position. A thickness of material shaped to a slip fit within the resonator is slotted on one surface in such a manner that pressure applied to a tapered center hole expands the circumference and produces a pneumatic seal. The tuning plug is invertible so that tonal characteristics of the air column are further adjustable.

REFERENCES:
patent: 4570525 (1986-02-01), Suzuki
patent: 4770080 (1988-09-01), Jivoin
patent: 4941386 (1990-07-01), Stevens

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