Keyboard musical instrument having jacks changeable in escape sp

Details Keyboard musical instrument having jacks changeable in escape sp Keyboard musical instrument having jacks changeable in escape sp

1995-06-05

1996-12-10

Stanzione, Patrick J.

Music

Instruments

Combined

84220, 84236, 84719, G10D 1500

Patent

active

055833063

ABSTRACT:
A keyboard musical instrument selectively generates acoustic sounds and electronic sounds depending upon a mode selected by a player, and has a hammer stopper for interrupting hammers before strikes at strings and an escape accelerator for accelerating an escape of a jack from the hammer assembly in the silent mode earlier than an escape in the acoustic sound mode, thereby preventing the hammer assembly from capture between the jack and the hammer stopper without deterioration of the piano key touch.

REFERENCES:
patent: 2250065 (1941-07-01), Koehl
patent: 4633753 (1987-01-01), Takahashi
patent: 4704931 (1987-11-01), Nagai et al.
patent: 4744281 (1988-05-01), Isozaki
patent: 4970929 (1990-11-01), Ishida
patent: 5115705 (1992-05-01), Monte et al.
patent: 5247129 (1993-09-01), Nozaki et al.
patent: 5374775 (1994-12-01), Kawamura et al.

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