(19)
(11) EP 1 697 698 B8

(12) CORRECTED EUROPEAN PATENT SPECIFICATION
Note: Bibliography reflects the latest situation

(15) Correction information:
Corrected version no 1 (W1 B1)

(48) Corrigendum issued on:
28.08.2013 Bulletin 2013/35

(45) Mention of the grant of the patent:
24.07.2013 Bulletin 2013/30

(21) Application number: 04813755.8

(22) Date of filing: 10.12.2004
(51) International Patent Classification (IPC): 
G01N 29/12(2006.01)
G01L 19/00(2006.01)
 G01F 25/00(2006.01)
(86) International application number:
PCT/US2004/041490
(87) International publication number:
WO 2005/066590 (21.07.2005 Gazette 2005/29)

(54)

DIAGNOSTICS OF IMPULSE PIPING IN AN INDUSTRIAL PROCESS

DIAGNOSTIK FÜR IMPULS-PIPING IN EINEM INDUSTRIELLEN PROZESS

DIAGNOSTIC DE CONDUITE DE TRANSMISSION D'IMPULSIONS DANS UN PROCEDE INDUSTRIEL

(84) Designated Contracting States:
CH DE GB LI

(30) Priority: 23.12.2003 US 744809

(43) Date of publication of application:
06.09.2006 Bulletin 2006/36

(73) Proprietor: Rosemount, Inc.
Chanhassen, MN 55317 (US)

(72) Inventors:
  • BROWN, Gregory, C.
    Chanhassen, MN 55317 (US)
  • SCHUMACHER, Mark, S.
    Minneapolis, MN 55419 (US)

(74) Representative: Cross, Rupert Edward Blount 
Boult Wade Tennant Verulam Gardens 70 Gray's Inn Road
London WC1X 8BT
London WC1X 8BT (GB)


(56) References cited: : 
WO-A-03/048713
US-B1- 6 654 697
 US-A- 5 680 109
   
  • MORGAN E S: "EXPERIENCE WITH THE ACOUSTIC RANGER - A SOUND METHOD FOR TUBE INSPECTION" MATERIALS EVALUATION, COLUMBUS, OH, US, vol. 39, September 1981 (1981-09), pages 926-930, XP001090916 ISSN: 0025-5327
  • KOYAMA H; WATANABE K: "Gas pipeline monitoring by acoustic method" TRANSACTIONS OF THE SOCIETY OF INSTRUMENT AND CONTROL ENGINEERS, vol. 29, no. 3, 1993, pages 295-301, XP008047230 JAPAN
  • EIJI TAYA, HIDEKI KUWAYAMA: "Detecting Blockage in Process Connections of Differential Pressure Transmitters" SICE 95 - PROCEEDINGS OF THE 34TH SICE ANNUAL CONFERENCE, July 1995 (1995-07), pages 1605-1608, XP002328598 SAPPORO
  • MITCHELL ET AL: "On-line detection of blockages in pressure sensing systems" ASME/JSME NUCLEAR ENGINEERING CONFERENCE, vol. 2, March 1993 (1993-03), pages 775-781, XP008047231 NEW YORK
   
Note: Within nine months from the publication of the mention of the grant of the European patent, any person may give notice to the European Patent Office of opposition to the European patent granted. Notice of opposition shall be filed in a written reasoned statement. It shall not be deemed to have been filed until the opposition fee has been paid. (Art. 99(1) European Patent Convention).