(19)
(11) EP 0 281 050 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
02.08.1989 Bulletin 1989/31

(43) Date of publication A2:
07.09.1988 Bulletin 1988/36

(21) Application number: 88102982.1

(22) Date of filing: 29.02.1988
(51) International Patent Classification (IPC)4: B24D 13/02
(84) Designated Contracting States:
BE CH DE ES FR GB LI LU NL

(30) Priority: 06.03.1987 IT 1960887

(71) Applicant: Ravelli, Pierluigi
I-24069 Trescore Balneario Bergamo (IT)

(72) Inventor:
  • Ravelli, Pierluigi
    I-24069 Trescore Balneario Bergamo (IT)

(74) Representative: Modiano, Guido, Dr.-Ing. et al
Modiano & Associati S.r.l. Via Meravigli, 16
20123 Milano
20123 Milano (IT)


(56) References cited: : 
   
       


    (54) Abrasive grinding wheel, particularly for working stone materials such as marble, granite and the like


    (57) "The present invention relates to an abrasive grinding wheel for working stone materials such as marble, granite and the like comprising a supporting body (2) associable with a rotating operating assembly. The peculiarity of the invention resides in the fact that it comprises an elastically resilient mass (10) peripherally defining a region with a shape substantially complementary to the shape of the part (12) being machined. Portions (13,20) in abrasive material, constituted by a mixture of rubber and carborundum or possibly of sections (20) of emery cloths, are provided on said region.







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