(19)
(11)
EP 0 986 680 A1
(12)
(43)
Date of publication:
22.03.2000
Bulletin 2000/12
(21)
Application number:
97926118.7
(22)
Date of filing:
13.06.1997
(51)
International Patent Classification (IPC)
7
:
E04B
1/21
,
B28B
7/00
,
B28B
7/02
,
B28B
23/00
(86)
International application number:
PCT/GB9701/602
(87)
International publication number:
WO 9802/625
(
22.01.1998
Gazette 1998/03)
(84)
Designated Contracting States:
BE DE FR IE NL
(30)
Priority:
16.07.1996
GB 9614960
13.08.1996
GB 9616989
(71)
Applicant:
R. O'Rourke and son Limited
Grays,Essex RM20 4YB (GB)
(72)
Inventors:
2'ROURKE, Raymond Gabriel,Fiddlers Reach
Essex RM20 4YB (GB)
BANKS, Colin Richard,Trimulgherry Cottage
Bedfordshire SG17 5ES (GB)
(74)
Representative:
Kidd, Piers Burgess et al
Marks & Clerk,57-60 Lincoln's Inn Field
London WC2A 3LS
London WC2A 3LS (GB)
(54)
IMPROVEMENTS IN OR RELATING TO CONCRETE STRUCTURES