The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 04, 2014
Filed:
Feb. 08, 2012
Joanne L. Jones, Nottingham, GB;
William R. S. Barton, Belper, GB;
Daniel J. Saccomando, Sheffield, GB;
Stephen J. Cook, Belper, GB;
Shaun P. Carney, Aston on Trent, GB;
Alexandra Mayhew, Wirksworth, GB;
Joanne L. Jones, Nottingham, GB;
William R. S. Barton, Belper, GB;
Daniel J. Saccomando, Sheffield, GB;
Stephen J. Cook, Belper, GB;
Shaun P. Carney, Aston on Trent, GB;
Alexandra Mayhew, Wirksworth, GB;
The Lubrizol Corporation, Wickliffe, OH (US);
Abstract
The present invention relates to a lubricating composition, particularly marine diesel engine lubricating compositions, comprising: (a) an oil of lubricating viscosity; (b) an asphaltene dispersant comprising an amide group, which may also contain a succinimide group, and which may optionally be used in combination with additional asphaltene dispersants that contain a cyclic headgroup that contains a nitrogen atoms where the additional asphaltene dispersants may also include a succinimide group; and (c) a detergent derived from an alkyl phenol. The invention further provides methods of using such compositions in the operation of engine, particularly marine diesel engines.