(19)
(11) EP 0 394 365 A1

(12)

(43) Date of publication:
31.10.1990 Bulletin 1990/44

(21) Application number: 89903334.0

(22) Date of filing: 06.02.1989
(51) International Patent Classification (IPC): 
B23F 23/ 12( . )
B24B 53/ 053( . )
(86) International application number:
PCT/US1989/000446
(87) International publication number:
WO 1989/008006 (08.09.1989 Gazette 1989/21)
(84) Designated Contracting States:
AT BE CH DE FR GB IT LI LU NL SE

(30) Priority: 24.02.1988 WO 1988US00522
31.05.1988 US 19880205041

(71) Applicant: THE GLEASON WORKS
Rochester New York 14692 (US)

(72) Inventors:
  • DODD, Harry, D.
    Rochester, NY 14625 (US)
  • PEDERSEN, Harry
    Rochester, NY 14625 (US)

(74) Representative: Harrison, David Christopher, et al 
MEWBURN ELLIS York House 23 Kingsway
London WC2B 6HP
London WC2B 6HP (GB)

   


(54) ROTARY DRESSING ROLLER AND METHOD AND APPARATUS FOR DRESSING CUP-SHAPED GRINDING WHEELS