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1. (WO1998049671) ACOUSTIC APPARATUS AND METHOD
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1998/049671 International Application No.: PCT/GB1998/001154
Publication Date: 05.11.1998 International Filing Date: 20.04.1998
Chapter 2 Demand Filed: 14.10.1998
IPC:
B06B 1/02 (2006.01) ,B06B 3/00 (2006.01) ,G10K 11/00 (2006.01) ,G10K 11/02 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
06
GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
B
GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
1
Processes or apparatus for generating mechanical vibrations of infrasonic, sonic or ultrasonic frequency
02
making use of electrical energy
B PERFORMING OPERATIONS; TRANSPORTING
06
GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
B
GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
3
Processes or apparatus specially adapted for transmitting mechanical vibrations of infrasonic, sonic or ultrasonic frequency
G PHYSICS
10
MUSICAL INSTRUMENTS; ACOUSTICS
K
SOUND-PRODUCING DEVICES;  METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
11
Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
G PHYSICS
10
MUSICAL INSTRUMENTS; ACOUSTICS
K
SOUND-PRODUCING DEVICES;  METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
11
Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
02
Mechanical acoustic impedances; Impedance matching, e.g. by horns; Acoustic resonators
Applicants:
BRITISH NUCLEAR FUELS PLC [GB/GB]; Risley Warrington Cheshire WA3 6AS, GB (AL, AM, AT, AU, AZ, BA, BB, BE, BF, BG, BJ, BR, BY, CA, CF, CG, CH, CI, CM, CN, CU, CY, CZ, DE, DK, EE, ES, FI, FR, GA, GB, GE, GH, GM, GN, GR, GW, HU, ID, IE, IL, IS, IT, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MC, MD, MG, MK, ML, MN, MR, MW, MX, NE, NL, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, SN, SZ, TD, TG, TJ, TM, TR, TT, UA, UG, UZ, VN, YU, ZW)
JENNINGS, Howard, Timothy [GB/GB]; GB (UsOnly)
Inventors:
JENNINGS, Howard, Timothy; GB
Agent:
GODDARD, David, John; Harrison Goddard Foote 1 Stockport Road Marple Stockport SK6 6BD , GB
Priority Data:
9708449.526.04.1997GB
Title (EN) ACOUSTIC APPARATUS AND METHOD
(FR) APPAREIL ACOUSTIQUE ET PROCEDE AFFERENT
Abstract:
(EN) A method and apparatus for removing contamination or corrosion, as defined, in a chamber or pipe is described. The apparatus comprises a horn and transducer assembly; said horn having two ends, a first end of which is in contact with an external surface of the chamber or pipe; an acoustic transducer in contact with the other end of the horn; and means for energising the acoustic transducer, whereby in use acoustic energy from the transducer is guided through the horn to the surface of the chamber or pipe and thereby into the liquid contained therein.
(FR) L'invention concerne un procédé et un appareil permettant d'éliminer une contamination ou une corrosion, selon la définition, dans une enceinte ou un tuyau. L'appareil comprend un ensemble pavillon et transducteur, le pavillon comportant deux extrémités et une extrémité étant en contact avec une surface extérieure de l'enceinte ou du tuyau; un transducteur acoustique en contact avec l'autre extrémité du pavillon; et un dispositif d'excitation du transducteur acoustique, de telle sorte que pendant l'utilisation, de l'énergie acoustique provenant du transducteur passe à travers le pavillon, à la surface de l'enceinte ou du tuyau et dans le liquide qui y est contenu.
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Designated States: AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, CA, CH, CN, CU, CZ, DE, DK, EE, ES, FI, GB, GE, GH, GM, GW, HU, ID, IL, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MD, MG, MK, MN, MW, MX, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, TJ, TM, TR, TT, UA, UG, US, UZ, VN, YU, ZW
African Regional Intellectual Property Organization (ARIPO) (GH, GM, KE, LS, MW, SD, SZ, UG, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
EP0978118AU1998070654