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EP 0563771 A3 19931201 - UPRICHT PIANO MECHANISM OF THE ESCAPE TYPE

Title (en)

UPRICHT PIANO MECHANISM OF THE ESCAPE TYPE

Publication

EP 0563771 A3 19931201 (FR)

Application

EP 93104839 A 19930324

Priority

LU 88093 A 19920401

Abstract (en)

[origin: EP0563771A2] An escapement-type action for an upright piano is provided. Each hammer is so balanced as to be in a state of unstable equilibrium on its pivot (90) in or very nearly in the position of impact of its head (113) on the string or strings (5). <IMAGE>

IPC 1-7

G10C 3/16

IPC 8 full level

G10C 3/16 (2006.01)

CPC (source: EP US)

G10C 3/161 (2013.01 - EP US); G10C 3/18 (2013.01 - EP); G10C 3/24 (2013.01 - EP US); G10C 3/26 (2013.01 - EP US); G10C 9/00 (2013.01 - EP)

Citation (search report)

[X] FR 2652186 A1 19910322 - SIMON FRANZ, et al
[Y] DE 223086 C
[Y] DE 107352 C
[A] FR 4749 E 19050928 - JAKOB SCHAAF [DE]
[A] GB 213997 A 19240415 - WILLIAM FINNIMORE
[A] DE 629925 C 19360516 - KARL FEYERABEND

Designated contracting state (EPC)

BE DE DK ES FR GB IT NL

DOCDB simple family (publication)

EP 0563771 A2 19931006; EP 0563771 A3 19931201; LU 88093 A1 19931206

DOCDB simple family (application)

EP 93104839 A 19930324; LU 88093 A 19920401