Marine engine lubrication

Solid anti-friction devices – materials therefor – lubricant or se – Lubricants or separants for moving solid surfaces and... – Organic -co- compound

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C508S502000, C508S503000

Reexamination Certificate

active

08076276

ABSTRACT:
A trunk piston marine engine lubricating oil composition for a medium-speed compression-ignited marine engine comprises, in a major amount, an oil of lubricating viscosity containing 50 mass % or more of a Group II basestock, and, in respective minor amounts, (A) an overbased metal hydrocarbyl-substituted hydroxybenzoate detergent having a basicity index of 5.5 or greater, and (B) an overbased metal hydrocarbyl-substituted hydroxybenzoate detergent having a basicity index of 2 or less. The ratio of the mass of metal in detergent (A) to the mass of metal in detergent (B) is 10 or less.

REFERENCES:
patent: 2004/0121918 (2004-06-01), Rea et al.
patent: 2004/0138076 (2004-07-01), Muir et al.
patent: 2005/0119140 (2005-06-01), Chambard et al.
patent: 1889896 (2008-02-01), None
patent: 23590093 (2001-08-01), None
patent: 2005263861 (2005-09-01), None

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Marine engine lubrication does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Marine engine lubrication, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Marine engine lubrication will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-4306605

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.