(19)
(11) EP 2 951 351 A1

(12)

(43) Date of publication:
09.12.2015 Bulletin 2015/50

(21) Application number: 14706360.6

(22) Date of filing: 24.01.2014
(51) International Patent Classification (IPC): 
E01H 1/08(2006.01)
(86) International application number:
PCT/US2014/012941
(87) International publication number:
WO 2014/120571 (07.08.2014 Gazette 2014/32)
(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: 01.02.2013 US 201313757114
03.01.2014 US 201461923286 P

(71) Applicant: National Association For Stock Car Auto Racing, Inc.
Daytona Beach, Florida 32114 (US)

(72) Inventors:
  • KRUEGER, Donald E.
    Stony Point, NC 28678 (US)
  • SUTTON, John K.
    Concord, North Carolina 28025 (US)
  • HORTON, Michael D.
    Concord, North Carolina 28027 (US)
  • ROGERS, Shawn
    Huntersville, North Carolina 28078 (US)
  • TATE, IV, John Austin
    Charlotte, North Carolina 28203 (US)
  • KAPROTH, Jerome
    Mooresville, NC 28127 (US)
  • POPIELA, Christopher Allen
    Charlotte, North Carolina 28203 (US)

(74) Representative: Papula Oy 
P.O. Box 981
00101 Helsinki
00101 Helsinki (FI)

   


(54) APPARATUSES, SYSTEMS, AND METHODS FOR CLEARING A SURFACE USING AIR