Grand piano-like keyboard instrument for selectively producing a

Details Grand piano-like keyboard instrument for selectively producing a Grand piano-like keyboard instrument for selectively producing a

1993-12-27

1997-02-11

Spyrou, Cassandra C.

Music

Instruments

Combined

84220, 84239, G10D 1500

Patent

active

056023510

ABSTRACT:
A piano-like keyboard instrument allowing a player to perform in either an acoustic sound mode and or an electronic sound producing mode. In the electronic sound producing mode, a stopper blocks sets of piano strings from hammers and an electronic sound producing unit generates electronic sounds. A key touch is maintained in the electronic sound producing mode. A gap regulating unit changes gaps between the toes of jacks and regulating buttons, depending upon which mode of operation is selected. Hammer shanks rebound on the stopper after the escapes of the jacks.

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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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