(19)
(11) EP 0 550 489 A1

(12)

(43) Date of publication:
14.07.1993 Bulletin 1993/28

(21) Application number: 91916127.0

(22) Date of filing: 26.09.1991
(51) International Patent Classification (IPC): 
B08B 3/ 12( . )
B29C 71/ 00( . )
B29C 35/ 02( . )
(86) International application number:
PCT/IT1991/000078
(87) International publication number:
WO 1992/005887 (16.04.1992 Gazette 1992/09)
(84) Designated Contracting States:
DE ES FR GB

(30) Priority: 27.09.1990 IT 19900083635

(71) Applicant: TECAR S.R.L.
I-20124 Milano (IT)

(72) Inventors:
  • PANNERI, Gianfranco
    I-21050 Bisuschio (IT)
  • MAGNI, Carlo
    I-21024 Biandronno (IT)

(74) Representative: Pellegri, Alberto, et al 
c/o Società Italiana Brevetti S.p.A. Via Puccini, 7
I-21100 Varese
I-21100 Varese (IT)

   


(54) CLEANING THE SURFACE OF A CONTINUOUSLY EXTRUDED RUBBER ARTICLE VULCANIZED IN A FLUIDIZED BED BY AN ULTRASONIC TREATMENT AND RECOVERING PELLETS OF THE VULCANIZATION BED ADHERED TO THE RUBBER SURFACE