(19)
(11) EP 1 175 982 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
15.05.2002 Bulletin 2002/20

(43) Date of publication A2:
30.01.2002 Bulletin 2002/05

(21) Application number: 01119708.4

(22) Date of filing: 17.10.1997
(51) International Patent Classification (IPC)7: B28B 1/10, B28B 3/00, B28B 5/02, B28B 13/02, B30B 11/14
(84) Designated Contracting States:
DE ES FR IT PT

(30) Priority: 22.11.1996 IT MO960151
16.01.1997 IT MO970004
16.01.1997 IT MO970005

(62) Application number of the earlier application in accordance with Art. 76 EPC:
97945854.4 / 0939691

(71) Applicant: Ronflette S.A.
2233 Luxembourg (LU)

(72) Inventors:
  • Camorani, Carlo Antonio
    42014 Roteglia di Castellarano (IT)
  • Algeri, Maris
    42014 Roteglia di Castellarano (IT)

(74) Representative: Gotra, Stefano et al
BUGNION S.p.A. Via Emilia Est 25
41100 Modena
41100 Modena (IT)

   


(54) Manufacturing of powdered material


(57) A method for pressing powder material (1, 10) to obtain tiles (14, 14a) comprises the steps of: distributing powders (6, 8) on flexible conveyor means (3) and advancing said powders (6, 8) along an advancing direction (V) through a pressing station, peripherally containing said powders (6, 8) on said conveyor means (3) by containing means (71, 72, 72a) in said pressing station, pressing said powders (6, 8) in said pressing station by pressing simultaneously the powder material of the intended tiles (14, 14a), said containing means acting on the powders (6, 8) to be pressed during said advancing and those containing means continuing to act during said pressing; said containing means (71, 72, 72a) further comprises powders (71, 72, 72a) located in a zone peripherally exceeding the intended tiles (14, 14a); an apparatus for pressing powdered material (1, 10) to form tiles (14, 14a) comprises flexible conveyor means (3) for receiving powders (6, 8) thereon from distributing means (2, 2a, 7) and for advancing said powders along an advancing direction (V) through a pressing station, containing means for peripherally containing said powders (6, 8) on said conveyor means (3), pressing means (3, 40, 55, 59a) for pressing said powders (6, 8) in said pressing station and pressing simultaneously on the powder material of the intended tiles (14, 14a), said containing means being arranged to act on the powders (6, 8) to be pressed during said advancing and said containing means continuing to act during said pressing; said containing means further comprises powders (72, 72a) arranged in a zone peripherally exceeding the intended tiles (14, 14a).






Search report