(19)
(11) EP 4 149 748 A1

(12)

(43) Date of publication:
22.03.2023 Bulletin 2023/12

(21) Application number: 21803935.2

(22) Date of filing: 08.05.2021
(51) International Patent Classification (IPC): 
B31B 70/00(2017.01)
B31B 155/00(2017.01)
 B31B 150/00(2017.01)
(52) Cooperative Patent Classification (CPC):
B31B 70/003; B31B 70/005; B31B 70/006; B31B 70/10; B31B 70/85; B31B 70/56; B31B 70/98
(86) International application number:
PCT/IB2021/053924
(87) International publication number:
WO 2021/229395 (18.11.2021 Gazette 2021/46)
(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
Designated Extension States:
BA ME
Designated Validation States:
KH MA MD TN

(30) Priority: 11.05.2020 IN 202011019753

(71) Applicant: LOHIA CORP LIMITED
Kanpur, Uttar Pradesh 208022 (IN)

(72) Inventor:
  • LOHIA, Gaurav
    Kanpur 208 022 (IN)

(74) Representative: Müller-Boré & Partner Patentanwälte PartG mbB 
Friedenheimer Brücke 21
80639 München
80639 München (DE)

   


(54) AN APPARATUS AND A METHOD FOR OPENING ENDS OF TUBULAR WEB PIECES TO MAKE BLOCK BOTTOM BAGS