EP 1429875 A1 20040623 - DENSE-PHASE FLUID CLEANING SYSTEM UTILIZING ULTRASONIC TRANSDUCERS
Title (en)
DENSE-PHASE FLUID CLEANING SYSTEM UTILIZING ULTRASONIC TRANSDUCERS
Title (de)
ULTRASCHALL-REINIGUNGSSYSTEM UNTER VERWENDUNG EINES FLUIDES IN SEINER DICHTEN PHASE
Title (fr)
SYSTEME DE NETTOYAGE PAR FLUIDE A PHASE DENSE METTANT EN OEUVRE DES TRANSDUCTEURS ULTRASONIQUES
Publication
Application
Priority
- US 0230863 W 20020927
- US 32562001 P 20010928
- US 2550502 A 20020926
Abstract (en)
[origin: WO03028909A1] A cleaning system (20) utilizing a pressurized dense-phase cleaning fluid (22) includes a cleaning containment vessel (24) having a containment-vessel interior (26), and a pressurization source (44) in fluid communication with the containment-vessel interior (26) to produce a cleaning pressure therein. There is at least one ultrasonic energy source (32) directing ultrasonic energy into the containment-vessel interior (26). Where there are two ultrasonic energy sources (32), they desirably function at different frequencies. Each ultrasonic energy source (32) includes a transducer housing (34) having a transducer-housing interior (36), an ultrasonic transducer (38) within the transducer-housing interior (36) and directing a beam of ultrasonic energy through the transducer housing (34) and into the containment-vessel interior (26), and a gas-pressure source (44) in fluid communication with the transducer-housing interior (36). The gas-pressure source produces a pressure in the transducer-housing interior (36) substantially equal to the cleaning pressure.
IPC 1-7
IPC 8 full level
A61L 2/025 (2006.01); A61L 2/18 (2006.01); B08B 3/12 (2006.01); B08B 7/00 (2006.01)
CPC (source: EP)
A61L 2/025 (2013.01); A61L 2/183 (2013.01); B08B 3/12 (2013.01); B08B 7/0021 (2013.01)
Citation (search report)
See references of WO 03028909A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR
DOCDB simple family (publication)
DOCDB simple family (application)
US 0230863 W 20020927; EP 02800381 A 20020927