(19)
(11) EP 4 457 085 A1

(12)

(43) Date of publication:
06.11.2024 Bulletin 2024/45

(21) Application number: 22826618.5

(22) Date of filing: 14.12.2022
(51) International Patent Classification (IPC): 
B29C 65/20(2006.01)
E06B 3/96(2006.01)
 B29C 65/78(2006.01)
(52) Cooperative Patent Classification (CPC):
B29C 65/2061; B29C 66/5241; B29C 66/52441; B29C 66/8432; B29C 66/322; B29C 66/324; B29C 66/02241; B29C 2793/0081; B29C 66/73921; B29L 2031/005; B29C 66/7212; B29C 66/71; E06B 3/9604; B29C 66/72523; B29C 65/7841; B29C 66/1142; B29C 66/1162; E06B 1/28; E06B 3/22
 
C-Sets:
  1. B29C 66/7212, B29K 2309/08;
  2. B29C 66/71, B29K 2027/06;
(86) International application number:
PCT/IB2022/062205
(87) International publication number:
WO 2023/126734 (06.07.2023 Gazette 2023/27)
(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 ME MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA
Designated Validation States:
KH MA MD TN

(30) Priority: 30.12.2021 IT 202100033077

(71) Applicant: Graf Synergy S.r.L.
41015 Nonantola (MO) (IT)

(72) Inventor:
  • VACCARI, Andrea
    41015 Nonantola (MO) (IT)

(74) Representative: Luppi, Emanuele 
Brunacci & Partners S.r.l. Via Pietro Giardini, 625
41125 Modena (MO)
41125 Modena (MO) (IT)

   


(54) PROCESS AND MACHINE FOR THE REVERSE-BUTT WELDING OF PROFILED ELEMENTS MADE OF PLASTIC MATERIAL