(19)
(11) EP 3 455 413 A1

(12)

(43) Date of publication:
20.03.2019 Bulletin 2019/12

(21) Application number: 17796692.6

(22) Date of filing: 09.05.2017
(51) International Patent Classification (IPC): 
E02B 7/42(2006.01)
 E02B 8/00(2006.01)
(86) International application number:
PCT/US2017/031761
(87) International publication number:
WO 2017/196849 (16.11.2017 Gazette 2017/46)
(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:
MA MD

(30) Priority: 12.05.2016 US 201662335362 P

(71) Applicant: FDH Infrastructure Services, LLC
Raleigh NC 27616 (US)

(72) Inventors:
  • LINDYBERG, Robert
    Raleigh North Carolina 27615 (US)
  • KHAN, Rakesh
    Wake Forest North Carolina 27587 (US)
  • KARSHENAS, Afshin
    Raleigh North Carolina 27606 (US)
  • BRENNON, Fuqua
    Raleigh North Carolina 27604 (US)
  • FERGUSON, Travis
    Raleigh North Carolina 27615 (US)

(74) Representative: Bartle Read 
Liverpool Science Park 131 Mount Pleasant
Liverpool L3 5TF
Liverpool L3 5TF (GB)

   


(54) ROD DE-TENSIONING DEVICE AND METHODS OF OPERATING THE SAME