EP 0191608 A3 19880727 - LUBRICATING GREASE FOR ROCK DRILL BITS AND BITS SO LUBRICATED
Title (en)
LUBRICATING GREASE FOR ROCK DRILL BITS AND BITS SO LUBRICATED
Publication
Application
Priority
GB 8503382 A 19850209
Abstract (en)
[origin: EP0191608A2] 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)
Citation (search report)
- [X] FR 1460413 A 19661125 - SHELL INT RESEARCH
- [Y] US 3223624 A 19651214 - MORWAY ARNOLD J, et al
- [YD] US 4358384 A 19821109 - NEWCOMB ALAN L
- [Y] US 3985662 A 19761012 - CAMPBELL IAN D, et al
- [Y] US 3791973 A 19740212 - GILANI S, et al
- [A] US 3929651 A 19751230 - MURRAY DONALD W, et al
- [A] EP 0084910 A2 19830803 - SHELL INT RESEARCH [NL]
- [A] FR 1040711 A 19531019 - SHELL REFINING & MARKETING CO
- [A] FR 2107892 A1 19720512 - MOBIL OIL CORP
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