(19)
(11) EP 2 214 869 A1

(12)

(43) Date of publication:
11.08.2010 Bulletin 2010/32

(21) Application number: 07862294.1

(22) Date of filing: 28.11.2007
(51) International Patent Classification (IPC): 
B24C 3/32(2006.01)
(86) International application number:
PCT/US2007/024504
(87) International publication number:
WO 2009/070135 (04.06.2009 Gazette 2009/23)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR
Designated Extension States:
AL BA HR MK RS

(71) Applicant: Pipe Restoration Technologies, L.L.C.
Las Vegas, NV 89126 (US)

(72) Inventors:
  • GILLANDERS, Larry
    Chilliwack, BC V2P 3M8 (CA)
  • WILLIAMS, Steve
    Stockton, CA 95206-1144 (US)
  • LABORDE, John
    Placentia, CA 95870-4847 (US)

(74) Representative: McKeown, Yvonne Mary et al
C/o MacLachlan & Donaldson 47 Merrion Square
Dublin 2
Dublin 2 (IE)

   


(54) METHODS AND SYSTEMS FOR ABRASIVE CLEANING AND BARRIER COATING/SEALING OF PIPES