(19)
(11) EP 3 320 179 A1

(12)

(43) Date of publication:
16.05.2018 Bulletin 2018/20

(21) Application number: 16823582.8

(22) Date of filing: 06.07.2016
(51) International Patent Classification (IPC): 
E21D 21/00(2006.01)
(86) International application number:
PCT/CA2016/050789
(87) International publication number:
WO 2017/008147 (19.01.2017 Gazette 2017/03)
(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:
MA MD

(30) Priority: 10.07.2015 US 201562191040 P

(71) Applicant: Epiroc Canada Inc.
Mississauga, ON L5T 1W5 (CA)

(72) Inventors:
  • DUFFY, Mike
    North Bay, Ontario P1C 1K9 (CA)
  • BUREAU, Mario
    St-Jean-sur-Richelieu, QC J2X 0C8 (CA)
  • CRANFORD, Chris
    North Bay, Ontario P1B8G5 (CA)

(74) Representative: Ehrnström, Tony 
Epiroc Rock Drills AB Patents
701 91 Örebro
701 91 Örebro (SE)

   


(54) SHEAR AND TENSILE REINFORCEMENT FOR INFLATABLE BOLT