(19)
(11) EP 3 414 511 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:
17.03.2021 Bulletin 2021/11

(45) Mention of the grant of the patent:
30.12.2020 Bulletin 2020/53

(21) Application number: 17750583.1

(22) Date of filing: 01.02.2017
(51) International Patent Classification (IPC): 
F28G 1/16(2006.01)
F28G 15/02(2006.01)
 F28G 15/00(2006.01)
B08B 3/02(2006.01)
(86) International application number:
PCT/US2017/015968
(87) International publication number:
WO 2017/139146 (17.08.2017 Gazette 2017/33)

(54)

CLEANING TUBESHEETS OF HEAT EXCHANGERS

REINIGUNG DER ROHRBÖDEN VON WÄRMETAUSCHERN

NETTOYAGE DE PLAQUES TUBULAIRES D'ÉCHANGEURS THERMIQUES

(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

(30) Priority: 09.02.2016 US 201615019389

(43) Date of publication of application:
19.12.2018 Bulletin 2018/51

(73) Proprietor: Thermal Engineering International (USA) Inc.
Cerritos, CA 90703 (US)

(72) Inventor:
  • NITKEN, Joseph, A.
    Louisville, KY 40223 (US)

(74) Representative: Hoefer & Partner Patentanwälte mbB 
Pilgersheimer Straße 20
81543 München
81543 München (DE)


(56) References cited: : 
WO-A1-2014/158377
US-A1- 2006 185 691
US-A1- 2014 158 169
 US-A- 4 905 900
US-A1- 2013 312 794
   
       
    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).