(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)
7
:
E04B
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