(19)
(11) EP 0 981 430 A1

(12)

(43) Date of publication:
01.03.2000 Bulletin 2000/09

(21) Application number: 99905130.3

(22) Date of filing: 10.03.1999
(51) International Patent Classification (IPC)7: B29C 35/02, B29B 13/08
(86) International application number:
PCT/IB9900/389
(87) International publication number:
WO 9946/098 (16.09.1999 Gazette 1999/37)
(84) Designated Contracting States:
AT BE CH DE DK ES FI FR GB GR IE IT LI NL PT SE

(30) Priority: 12.03.1998 IT BO980155

(71) Applicants:
  • DIOLAITI, Luigi
    I-48011 Alfonsine (IT)
  • Rivi, Giuliano
    42019 Scandiano (IT)

(72) Inventors:
  • RIVI, Giuliano
    I-42019 Scandiano (IT)
  • DIOLAITI, Erminio
    I-40137 Bologna (IT)

(74) Representative: Lanzoni, Luciano 
c/o BUGNION S.p.A.Via Goito, 18
40126 Bologna
40126 Bologna (IT)

   


(54) METHOD AND APPARATUS FOR FORMING ITEMS MADE OF PLASTIC MATERIAL WHEREBY THE PLASTIC MATERIAL IS HEATED BY ULTRASONIC VIBRATIONS