EP 1062055 A1 20001227 - COLLAPSIBLE ANNULAR ACOUSTIC TRANSMISSION ANTENNA
Title (en)
COLLAPSIBLE ANNULAR ACOUSTIC TRANSMISSION ANTENNA
Title (de)
DEMONTIERBARE RINGFÖRMIGE AKUSTISCHE SENDEANTENNE
Title (fr)
ANTENNE D'EMISSION ACOUSTIQUE ANNULAIRE DEMONTABLE
Publication
Application
Priority
- FR 9900523 W 19990309
- FR 9802912 A 19980310
Abstract (en)
[origin: FR2776161A1] The assembly has ring stacks piezoelectric elements segments formed with inner fixing sections or outer constraining hoops. The construction does not need a common construction structure to hold the transducers which would otherwise add weight.
IPC 1-7
IPC 8 full level
B06B 1/06 (2006.01); G01S 7/521 (2006.01)
CPC (source: EP US)
B06B 1/0633 (2013.01 - EP US)
Designated contracting state (EPC)
DE GB IT
DOCDB simple family (publication)
FR 2776161 A1 19990917; FR 2776161 B1 20000526; AU 2732399 A 19990927; AU 747667 B2 20020516; DE 69917235 D1 20040617; DE 69917235 T2 20050504; EP 1062055 A1 20001227; EP 1062055 B1 20040512; JP 2002505953 A 20020226; JP 4031198 B2 20080109; US 6345014 B1 20020205; WO 9946059 A1 19990916
DOCDB simple family (application)
FR 9802912 A 19980310; AU 2732399 A 19990309; DE 69917235 T 19990309; EP 99907670 A 19990309; FR 9900523 W 19990309; JP 2000535464 A 19990309; US 62385100 A 20000911