(19)
(11) EP 0 698 153 A1

(12)

(43) Date of publication:
28.02.1996 Bulletin 1996/09

(21) Application number: 94913683.0

(22) Date of filing: 22.04.1994
(51) International Patent Classification (IPC): 
B28B 1/ 08( . )
E01C 19/ 40( . )
E04G 21/ 08( . )
B28B 1/ 093( . )
E04G 21/ 06( . )
(86) International application number:
PCT/GB1994/000859
(87) International publication number:
WO 1994/025681 (10.11.1994 Gazette 1994/25)
(84) Designated Contracting States:
AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE

(30) Priority: 30.04.1993 US 19930055004

(71) Applicant: WILLIAMS, John Francis
London WC2E 7PB (GB)

(72) Inventor:
  • FACE, Samuel, Allen, Jr.
    Norfolk, VI 23508 (US)

(74) Representative: Jehan, Robert, et al 
Williams, Powell & Associates, 34 Tavistock Street
London WC2E 7PB
London WC2E 7PB (GB)

   


(54) METHOD AND APPARATUS FOR STAGED VIBRATION OF CONCRETE