Piano key assembly

Details Piano key assembly Piano key assembly

2007-03-06

2007-03-06

Lockett, Kimberly (Department: 2837)

Music

Instruments

Stringed

Reexamination Certificate

active

11113205

ABSTRACT:
A piano key mechanism for a pianoforte with improved dynamic performance has weights placed within each keystick in the region between the pivot point of each key and a point midway between the pivot point and the ivory end of the keystick. The arrangement of weights reduces the overall inertia of the keysticks thus improving the dynamic performance of the musical instrument and results in an average of the downweight and upweight which is heavier than the conventionally accepted value for that key on a keyboard.

REFERENCES:
patent: 633915 (1899-09-01), Smith
patent: 1589745 (1926-06-01), Federle
patent: 2031748 (1936-02-01), Vietor
patent: 5585582 (1996-12-01), Stanwood
patent: 5796024 (1998-08-01), Stanwood
patent: 6096959 (2000-08-01), Davide
patent: 6531651 (2003-03-01), Kanemitsu et al.

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