EP 0191608 A2 19860820 - Lubricating grease for rock drill bits and bits so lubricated.
Title (en)
Lubricating grease for rock drill bits and bits so lubricated.
Title (de)
Schmierfett für Steinbohrerspitzen und so geschmierte Bohrerspitzen.
Title (fr)
Graisse lubrifiante pour trépan de rocher et trépans ainsi lubrifiés.
Publication
Application
Priority
GB 8503382 A 19850209
Abstract (en)
A lubricating grease suitable for use in rock drill bits comprises: (1) a major proportion of a mineral or synthetic hydrocarbon base oil, (2) from 3 to 15% wt by weight of the grease of a lithium complex soap as the sole thickener, and (3) from 5 to 20% wt by weight of the grease of molybdenum disulphide particles as extreme pressure additive. Such a grease has the required lubrificating qualities and the required flow properties for use in rock drill bits having a grease reservoir (e.g. a pressure equalisation chamber) and channels connecting the reservoir to the bearing surfaces.
IPC 1-7
IPC 8 full level
C10M 169/06 (2006.01); C10N 10/02 (2006.01); C10N 10/12 (2006.01); C10N 30/06 (2006.01); C10N 40/00 (2006.01); C10N 50/10 (2006.01)
CPC (source: EP)
C10M 117/00 (2013.01); C10M 125/22 (2013.01); C10M 169/06 (2013.01); C10M 2201/065 (2013.01); C10M 2201/066 (2013.01); C10M 2201/084 (2013.01); C10M 2207/106 (2013.01); C10M 2207/1206 (2013.01); C10M 2207/123 (2013.01); C10M 2207/125 (2013.01); C10M 2207/129 (2013.01); C10M 2207/1406 (2013.01); C10M 2207/16 (2013.01); C10M 2207/18 (2013.01); C10M 2207/22 (2013.01); C10M 2207/2613 (2013.01); C10M 2207/2626 (2013.01); C10M 2223/045 (2013.01); C10N 2010/02 (2013.01); C10N 2010/04 (2013.01); C10N 2040/00 (2013.01); C10N 2040/30 (2013.01); C10N 2040/32 (2013.01); C10N 2040/34 (2013.01); C10N 2040/36 (2013.01); C10N 2040/38 (2020.05); C10N 2040/40 (2020.05); C10N 2040/42 (2020.05); C10N 2040/44 (2020.05); C10N 2040/50 (2020.05)
Designated contracting state (EPC)
DE FR GB NL SE
DOCDB simple family (publication)
EP 0191608 A2 19860820; EP 0191608 A3 19880727; GB 8503382 D0 19850313; JP S61183393 A 19860816; NO 860435 L 19860811
DOCDB simple family (application)
EP 86300831 A 19860206; GB 8503382 A 19850209; JP 2220586 A 19860205; NO 860435 A 19860207