(19)
(11)
EP 0 771 249 A1
(12)
(43)
Date of publication:
07.05.1997
Bulletin 1997/19
(21)
Application number:
95918090.0
(22)
Date of filing:
11.05.1995
(51)
International Patent Classification (IPC):
B24B
1/
00
( . )
B24B
49/
02
( . )
B24B
41/
00
( . )
(86)
International application number:
PCT/GB1995/001069
(87)
International publication number:
WO 1996/003255
(
08.02.1996
Gazette 1996/07)
(84)
Designated Contracting States:
DE ES FR IT
(30)
Priority:
23.07.1994
GB 19940014880
(71)
Applicant:
WESTERN ATLAS U.K. LIMITED
Aylesbury, Buckinghamshire HP20 2RQ (GB)
(72)
Inventor:
PICKLES, John, David
Skipton North Yorkshire BD23 5PN (GB)
(74)
Representative:
Nash, Keith Wilfrid
KEITH W. NASH & Co. Pearl Assurance House 90-92 Regent Street
Cambridge CB2 1DP
Cambridge CB2 1DP (GB)
(54)
GRINDING METHOD AND APPARATUS