(19)
(11) EP 4 469 659 A1

(12)

(43) Date of publication:
04.12.2024 Bulletin 2024/49

(21) Application number: 23704602.4

(22) Date of filing: 04.01.2023
(51) International Patent Classification (IPC): 
E21D 23/04(2006.01)
(52) Cooperative Patent Classification (CPC):
E21D 23/04; E21D 23/049
(86) International application number:
PCT/US2023/060063
(87) International publication number:
WO 2023/147203 (03.08.2023 Gazette 2023/31)
(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: 25.01.2022 GB 202200922

(71) Applicant: Caterpillar Inc.
Peoria, IL 61629-6450 (US)

(72) Inventor:
  • SCHUMACHER, Randal
    Woongarrah, New South Wales 2259 (AU)

(74) Representative: Molnia, David et al
Df-mp Dörries Frank-Molnia & Pohlman Patentanwälte Rechtsanwälte PartG mbB Theatinerstrasse 16
80333 München
80333 München (DE)

   


(54) ROOF SUPPORT UNIT FOR A MINING MACHINE