(19)
(11) EP 1 073 805 A1

(12)

(43) Date of publication:
07.02.2001 Bulletin 2001/06

(21) Application number: 98919857.7

(22) Date of filing: 24.04.1998
(51) International Patent Classification (IPC)7E04B 2/70, E04G 21/00
(86) International application number:
PCT/US9808/187
(87) International publication number:
WO 9955/977 (04.11.1999 Gazette 1999/44)
(84) Designated Contracting States:
CH DE DK FR GB LI SE

(71) Applicant: Flex-Ability Concepts, L.L.C.
Oklahoma City, OK 73114 (US)

(72) Inventor:
  • WHEELER, Franklin, L.
    Nicoma Park, OK 73066 (US)

(74) Representative: Nicholls, Michael John 
J.A. KEMP & CO.14, South SquareGray's Inn
London WC1R 5LX
London WC1R 5LX (GB)

   


(54) APPARATUS AND METHODS OF FORMING A CURVED STRUCTURE