(19)

(11)

EP 1 003 673 A1

(12)

(43) Date of publication: 31.05.2000 Bulletin 2000/22 (21) Application number: 98967063.3 (22) Date of filing: 17.09.1998

(51) International Patent Classification (IPC)7: B65B 51/08 (86) International application number: PCT/US9819/392 (87) International publication number: WO 9925/615 (27.05.1999 Gazette 1999/21)

(84) Designated Contracting States: AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 19.09.1997 US 59329 P (71) Applicant: BURFORD CORP. Maysville, OK 73057 (US)	(72) Inventors: Stoddard, Luther B. Blanchard, OK 73010 (US) Burford, Charles E. Athens, TX 75751 (US) Pack, Jerry Dale Pauls Valley, OK 73075 (US) (74) Representative: Howick, Nicholas Keith et al CARPMAELS & RANSFORD43 Bloomsbury Square London WC1A 2RA London WC1A 2RA (GB)