EP 1062654 A1 20001227 - METHOD AND DEVICE FOR HYDRAULICALLY TENSING OR RELAXING A MEMBRANE OF A MUSICAL INSTRUMENT
Title (en)
METHOD AND DEVICE FOR HYDRAULICALLY TENSING OR RELAXING A MEMBRANE OF A MUSICAL INSTRUMENT
Title (de)
VERFAHREN UND VORRICHTUNG ZUM HYDRAULICHEN SPANNEN ODER ENTSPANNEN EINER MEMBRAN EINES MUSIKINSTRUMENTES
Title (fr)
PROCEDE ET DISPOSITIF POUR TENDRE OU DETENDRE HYDRAULIQUEMENT LE DIAPHRAGME D'UN INSTRUMENT DE MUSIQUE
Publication
Application
Priority
- DE 0000173 W 20000114
- DE 19902702 A 19990114
Abstract (en)
[origin: US6483017B1] A method and apparatus for tensioning or relaxing a membrane of a musical instrument, such as a traditional frame drum. A pressurized fluid is guided into at least one variable pressure chamber formed by an expandable hollow body. The hollow body is positioned around the resonator of the instrument. The membrane is subjected to pressure between a membrane support and a membrane fixing device by means of the pressurized fluid in the chamber. Pressure is exerted evenly all around the circumference of the membrane. The membrane is fixed only by a band so that it can be tensed or relaxed very rapidly. The band is arranged to vibrate freely in relation to the resonance body while the membrane is subjected to pressure from the variably pressurized chamber.
IPC 1-7
IPC 8 full level
G10D 13/02 (2006.01)
CPC (source: EP US)
G10D 13/02 (2013.01 - EP US); G10D 13/16 (2020.02 - EP US)
Citation (search report)
See references of WO 0042597A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
US 6483017 B1 20021119; AT E312397 T1 20051215; AU 2535400 A 20000801; DE 10080077 B4 20041021; DE 10080077 D2 20020508; DE 19902702 A1 20000803; DE 20001152 U1 20000615; DE 50011794 D1 20060112; EP 1062654 A1 20001227; EP 1062654 B1 20051207; WO 0042597 A1 20000720
DOCDB simple family (application)
US 64617000 A 20000914; AT 00903549 T 20000114; AU 2535400 A 20000114; DE 0000173 W 20000114; DE 10080077 T 20000114; DE 19902702 A 19990114; DE 20001152 U 20000114; DE 50011794 T 20000114; EP 00903549 A 20000114