(19)
(11) EP 3 063 361 A1

(12)

(43) Date of publication:
07.09.2016 Bulletin 2016/36

(21) Application number: 14796987.7

(22) Date of filing: 31.10.2014
(51) International Patent Classification (IPC): 
E21B 17/08(2006.01)
E21B 19/00(2006.01)
(86) International application number:
PCT/US2014/063425
(87) International publication number:
WO 2015/066472 (07.05.2015 Gazette 2015/18)
(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

(30) Priority: 01.11.2013 US 201361898860 P

(71) Applicant: LORD Corporation
Cary, NC 27511 (US)

(72) Inventors:
  • PTAK, Keith R.
    Erie, Pennsylvania 16506 (US)
  • HORDUSKY, Bruce
    Erie, Pennsylvania 16506 (US)

(74) Representative: Hendry, Niall James 
Murgitroyd & Company Scotland House 165-169 Scotland Street
Glasgow G5 8PL
Glasgow G5 8PL (GB)

   


(54) IMPROVED RISER TENSIONER BEARING SYSTEM