Keyboard instrument key, e.g. for piano

A key, for a keyboard instrument, has a surface of ceramic, glass-ceramic or glass. Preferably the ceramic is a 0.1-3 mm thick overlay of alumina, zirconia, zirconia-reinforced alumina, alumina-reinforced zirconia, aluminium titanate, mullite or zirconium silicate ceramic.

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Bibliographische Detailangaben
Hauptverfasser:	HOFFMEISTER, HANS., 16727 MARWITZ, DE, JUNGHANS, CLAAS, 10587 BERLIN, DE, TERRY, HAMLYN GRAHAM, 10587 BERLIN, DE
Format:	Patent
Sprache:	eng ; ger
Schlagworte:	ACOUSTICS MUSICAL INSTRUMENTS PHYSICS PIANOS, HARPSICHORDS, SPINETS OR SIMILAR STRINGED MUSICALINSTRUMENTS WITH ONE OR MORE KEYBOARD
Online-Zugang:	Volltext bestellen
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Beschreibung
Zusammenfassung:	A key, for a keyboard instrument, has a surface of ceramic, glass-ceramic or glass. Preferably the ceramic is a 0.1-3 mm thick overlay of alumina, zirconia, zirconia-reinforced alumina, alumina-reinforced zirconia, aluminium titanate, mullite or zirconium silicate ceramic.