(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)7E04B 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