(19)
(11) EP 3 642 490 A1

(12)

(43) Date of publication:
29.04.2020 Bulletin 2020/18

(21) Application number: 18821001.7

(22) Date of filing: 22.06.2018
(51) International Patent Classification (IPC): 
F04D 29/24(2006.01)
(86) International application number:
PCT/IN2018/050411
(87) International publication number:
WO 2018/235105 (27.12.2018 Gazette 2018/52)
(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: 22.06.2017 IN 201741022007

(71) Applicant: CRI Pumps Private Limited
Saravanampatti, Coimbatore 641035 (IN)

(72) Inventors:
  • IGNACY, Manuvel Jawahar
    Saravanampatti Coimbatore 641035 (IN)
  • PERIYADURAI, Kalimuthu
    Saravanampatti Coimbatore 641035 (IN)

(74) Representative: Lavoix 
2, place d'Estienne d'Orves
75441 Paris Cedex 09
75441 Paris Cedex 09 (FR)

   


(54) HELICAL IMPELLER