EP 0857088 A1 19980812 - DEVICE FOR TRANSFERRING ULTRASONIC ENERGY INTO A LIQUID OR PASTY MEDIUM
Title (en)
DEVICE FOR TRANSFERRING ULTRASONIC ENERGY INTO A LIQUID OR PASTY MEDIUM
Title (de)
GERÄT ZUR EINKOPPLUNG VON ULTRASCHALL IN EIN FLÜSSIGES ODER PASTÖSES MEDIUM
Title (fr)
DISPOSITIF POUR INJECTER DES ULTRASONS DANS UNE SUBSTANCE LIQUIDE OU PATEUSE
Publication
Application
Priority
- DE 19539195 A 19951020
- EP 9604502 W 19961017
Abstract (en)
[origin: US5994818A] PCT No. PCT/EP96/04502 Sec. 371 Date Jan. 21, 1999 Sec. 102(e) Date Jan. 21, 1999 PCT Filed Oct. 17, 1996 PCT Pub. No. WO97/15404 PCT Pub. Date May 1, 1997A device (10) for transferring ultrasonic energy into a liquid or pasty medium, the device consisting of the following functional elements: a) an AC generator (35) designed for frequencies between 1 kHz and 100 kHz, b) a magnetostrictive or piezoelectric transducer (20) controlled by the output voltage of the AC generator to execute high-frequency (longitudinal) mechanical oscillations, c) a cylindrical waveguide (23) which is excited by the transducer to execute longitudinal resonant oscillations and d) a tubular cavity resonator (24) which is acoustically coupled to the waveguide and which converts the longitudinal resonant oscillations into oscillations transverse to its longitudinal axis (26'), the oscillation energy of the resonator being transferred into the medium (11) which is to be exposed to the ultrasonic energy. The cavity resonator (24) is designed so that the resonance condition is fulfilled for both longitudinal and transverse natural oscillations of its case (36).
IPC 1-7
IPC 8 full level
B06B 3/00 (2006.01)
CPC (source: EP US)
B06B 3/00 (2013.01 - EP US)
Citation (search report)
See references of WO 9715404A1
Designated contracting state (EPC)
AT CH DE FR GB IT LI
DOCDB simple family (publication)
US 5994818 A 19991130; AT E181857 T1 19990715; DE 19539195 A1 19970424; DE 59602406 D1 19990812; EP 0857088 A1 19980812; EP 0857088 B1 19990707; WO 9715404 A1 19970501
DOCDB simple family (application)
US 5187699 A 19990121; AT 96934714 T 19961017; DE 19539195 A 19951020; DE 59602406 T 19961017; EP 9604502 W 19961017; EP 96934714 A 19961017