Patents Assigned to Castrol Limited
  • Publication number: 20180274408
    Abstract: A method for controlling fluid distribution in a fluid circulation system associated with an engine, the fluid circulation system being coupled to a replaceable fluid container comprising a fluid supply port configured to couple to a fluid supply line of the fluid circulation system, and a fluid return port configured to couple to a fluid return line of the fluid circulation system, and a breather port configured to couple to a breather output of the fluid circulation system, the method comprising causing the fluid to flow into the replaceable fluid container from the fluid circulation system whilst inhibiting outflow of the fluid from the replaceable fluid container into the fluid circulation system, so as to collect the fluid in the replaceable fluid container, and related apparatus configured to control fluid distribution in a fluid circulation system associated with an engine, and causing a gas to flow from the replaceable fluid container through the breather port whilst inhibiting outflow of the fluid fr
    Type: Application
    Filed: September 23, 2016
    Publication date: September 27, 2018
    Applicant: Castrol Limited
    Inventors: Steven Paul GOODIER, Oliver Paul TAYLOR, Michael BAKER, John GAMSTON, Krishan ARORA
  • Patent number: 10017709
    Abstract: The present invention provides a multiple function dispersant viscosity index improver, a method of making the multiple function dispersant viscosity index improver, and a lubricating oil comprising the multiple function dispersant viscosity index improver. The multiple function dispersant viscosity index improver comprises two different functional groups, each directly grafted to a polymer backbone having graftable sites. The first functional group comprises the reaction product of an acylating agent and a first amine, the first amine comprising an aromatic primary amine, and the second functional group comprises the reaction product of an acylating agent and a second amine, the second amine comprising an aliphatic primary amine. The first functional group provides the dispersant viscosity index improver with soot handling performance attributes and the second functional group provides the dispersant viscosity index improver with sludge and varnish control performance attributes.
    Type: Grant
    Filed: April 13, 2017
    Date of Patent: July 10, 2018
    Assignee: Castrol Limited
    Inventors: Richard P. Sauer, Nicholas W. Groeger
  • Patent number: 9938867
    Abstract: A cartridge for replenishing a vehicle fluid, a fluid reservoir system comprising same and a holder, a holder, a vehicle engine comprising the fluid reservoir system and a vehicle comprising said engine in which, the cartridge comprises: a housing comprising a first part and a second part; a fluid reservoir in the housing; a port arranged on the first part of the housing to couple the reservoir in fluidic communication with a fluid system of the vehicle; wherein the second part of the housing is configured to rotate with respect to the first part of the housing to secure the cartridge with respect to the fluid system to hold the reservoir in fluidic communication, via the port, with the fluid system of the vehicle, wherein the second part of the housing is configured such that rotating the second part of the housing does not rotate the port.
    Type: Grant
    Filed: November 19, 2013
    Date of Patent: April 10, 2018
    Assignee: Castrol Limited
    Inventors: Peter Stuart Brett, Steven Paul Goodier, Piers Sebastian Harding, Gary Keith Jepps, Thomas James McPherson, Michael Paul Sheldon, Matthew Paul Wright
  • Patent number: 9890901
    Abstract: A replaceable fluid container for a vehicle, for example a vehicle engine, the container comprising: a housing comprising a fluid reservoir; at least one fluid port arranged on the housing to couple the reservoir in fluidic communication with a fluid system of the vehicle; a vent port arranged on the housing to couple the reservoir in fluidic communication with the vehicle for allowing gas to be passed into and out from the reservoir; a vent tube connected at a first end, to said vent port and arranged within the reservoir to pass through fluid contained in the reservoir when the container is connected with the fluid reservoir in fluidic communication with the fluid system of the vehicle, with a second end of the vent tube in a headspace above the fluid in the reservoir, to allow gas communication between the vent port and the headspace, in which the vent tube comprises a vent valve at the second end of the vent tube adapted to close to prevent ingress of fluid and gas from the reservoir into the vent tube wh
    Type: Grant
    Filed: November 19, 2013
    Date of Patent: February 13, 2018
    Assignee: Castrol Limited
    Inventors: Peter Stuart Brett, Steven Paul Goodier, Piers Sebastian Harding, Gary Keith Jepps, Thomas James McPherson
  • Patent number: 9878822
    Abstract: A replaceable fluid container for a vehicle, the container comprising: a housing comprising a fluid reservoir; an outlet port arranged on the housing to couple the reservoir in fluidic communication with a fluid system of the vehicle for supplying fluid from the reservoir to the vehicle; an inlet port arranged on the housing to couple the reservoir for receiving fluid from the engine to the reservoir; and a vent port arranged on the housing to couple the reservoir for allowing gas to be passed into and out from the reservoir, wherein the inlet, outlet and vent ports are arranged on a common end of the housing and are arranged such that the distance between the vent port and the nearest of the inlet port and outlet port is greater than the distance between the inlet port and the outlet port.
    Type: Grant
    Filed: November 19, 2013
    Date of Patent: January 30, 2018
    Assignee: Castrol Limited
    Inventors: Andrew Philip Barnes, Peter Stuart Brett, Steven Paul Goodier, Piers Sebastian Harding, Gary Keith Jepps, Mark O'Malley, Thomas James McPherson
  • Patent number: 9869219
    Abstract: A fluid reservoir system for a vehicle engine, which engine comprises a fluid circulation system, the reservoir system comprising a container for fluid, in which the container comprises at least one fluid inlet port, at least one fluid outlet port and at least one vent port and in which, each of said ports comprises a self-sealing coupling adapted to connect to a corresponding coupling on the vehicle engine to thereby connect said container in fluidic communication with the fluid circulation system of the engine and in which the reservoir system comprises at least one latch which is adapted to retain said container in fluidic communication with said vehicle engine fluid circulation system and is remotely operable to disconnect said container from said vehicle engine fluid circulation system and in which the system comprises at least one actuator which is connected to one or more of said latches and is adapted to operate said one or more latches and said container is elongate; said inlet, outlet and vent ports
    Type: Grant
    Filed: November 19, 2013
    Date of Patent: January 16, 2018
    Assignee: Castrol Limited
    Inventors: Andrew Philip Barnes, Peter Stuart Brett, Steven Paul Goodier, Mark O'Malley
  • Patent number: 9828564
    Abstract: The use as an anti-wear additive and/or friction modifier in a non-aqueous lubricant composition and/or in a fuel composition of at least one long chain fatty acid ester of a hydroxy carboxylic acid in which the long chain fatty acid has at least 4 carbon atoms and the ester is an oil-soluble ester of a mono- or poly-hydroxy carboxylic acid having 1 to 4 groups which are independently carboxylic acid groups or lower hydrocarbyl esters thereof and in which, when the hydroxy carboxylic acid is a mono-hydroxy carboxylic acid, the ester has a long chain fatty acid ester moiety of the hydroxy group of the hydroxy carboxylic acid and, when the hydroxy carboxylic acid is a poly-hydroxy carboxylic acid, the ester has independently long chain fatty acid ester moieties of one or two of the hydroxy groups of the poly-hydroxy carboxylic acid. Also, a non-aqueous lubricant composition and a fuel composition for an internal combustion engine which comprises at least one of said long chain fatty acid esters.
    Type: Grant
    Filed: July 30, 2015
    Date of Patent: November 28, 2017
    Assignee: Castrol Limited
    Inventor: Kevin Richard West
  • Publication number: 20170122151
    Abstract: The present invention relates to a replaceable fluid container for an engine comprising: a first reservoir for holding a fluid; a second reservoir for holding a composition to be added to the fluid; a fluid coupling adapted to provide fluidic communication between the first reservoir and a fluid circulation system of the engine; and a dose controller to provide a dose of the composition into the fluid for circulation in a fluid circulation system of the engine.
    Type: Application
    Filed: May 21, 2015
    Publication date: May 4, 2017
    Applicant: Castrol Limited
    Inventors: Peter Stuart Brett, Steven Paul Goodier, Mark O'Malley, Oliver Paul Taylor
  • Patent number: 9624451
    Abstract: The present invention provides a multiple function dispersant viscosity index improver, a method of making the multiple function dispersant viscosity index improver, and a lubricating oil comprising the multiple function dispersant viscosity index improver. The multiple function dispersant viscosity index improver comprises two different functional groups, each directly grafted to a polymer backbone having graftable sites. The first functional group comprises the reaction product of an acylating agent and a first amine, the first amine comprising an aromatic primary amine, and the second functional group comprises the reaction product of an acylating agent and a second amine, the second amine comprising an aliphatic primary amine. The first functional group provides the dispersant viscosity index improver with soot handling performance attributes and the second functional group provides the dispersant viscosity index improver with sludge and varnish control performance attributes.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: April 18, 2017
    Assignee: Castrol Limited
    Inventors: Richard P. Sauer, Nicholas W. Groeger
  • Patent number: 9217117
    Abstract: A non-aqueous lubricating composition containing a major amount of an oil of lubricating viscosity and a minor amount, in the range of 0.02% to 5% by weight, of at least one compound represented by the structural formula (I): wherein R4 represents H or a C1 to C9 hydrocarbyl group or x, y and z are independently integers in the range 1 to 6; and R1, R2 and R3 each independently represent a C1 to C10 hydrocarbyl or substituted hydrocarbyl group.
    Type: Grant
    Filed: May 17, 2013
    Date of Patent: December 22, 2015
    Assignee: CASTROL LIMITED
    Inventors: Samir Chahine, James Edward Moss
  • Patent number: 9200229
    Abstract: A non-aqueous lubricating composition containing a major amount of an oil of lubricating viscosity and a minor amount in the range of 0.02% to 5% by weight, of at least one compound having the structural formula (I): wherein m and n are each independently an integer in the range 1 to 6, R1 and R2 each independently represent a C1 to C10 hydrocarbyl or substituted hydrocarbyl group, and R3 represents a C10 to C26 hydrocarbyl group.
    Type: Grant
    Filed: May 17, 2013
    Date of Patent: December 1, 2015
    Assignee: CASTROL LIMITED
    Inventors: Samir Chahine, James Edward Moss
  • Publication number: 20150292371
    Abstract: A fluid reservoir system for a vehicle engine, which engine comprises a fluid circulation system, the reservoir system comprising a container for fluid, in which the container comprises at least one fluid inlet port, at least one fluid outlet port and at least one vent port and in which, each of said ports comprises a self-sealing coupling adapted to connect to a corresponding coupling on the vehicle engine to thereby connect said container in fluidic communication with the fluid circulation system of the engine and in which the reservoir system comprises at least one latch which is adapted to retain said container in fluidic communication with said vehicle engine fluid circulation system and is remotely operable to disconnect said container from said vehicle engine fluid circulation system and in which the system comprises at least one actuator which is connected to one or more of said latches and is adapted to operate said one or more latches and said container is elongate; said inlet, outlet and vent ports
    Type: Application
    Filed: November 19, 2013
    Publication date: October 15, 2015
    Applicant: Castrol Limited
    Inventors: Andrew Philip Barnes, Peter Stuart Brett, Steven Paul Goodier, Mark O'Malley
  • Publication number: 20150291317
    Abstract: A cartridge for replenishing a vehicle fluid, a fluid reservoir system comprising same and a holder, a holder, a vehicle engine comprising the fluid reservoir system and a vehicle comprising said engine in which, the cartridge comprises: a housing comprising a first part and a second part; a fluid reservoir in the housing; a port arranged on the first part of the housing to couple the reservoir in fluidic communication with a fluid system of the vehicle; wherein the second part of the housing is configured to rotate with respect to the first part of the housing to secure the cartridge with respect to the fluid system to hold the reservoir in fluidic communication, via the port, with the fluid system of the vehicle, wherein the second part of the housing is configured such that rotating the second part of the housing does not rotate the port.
    Type: Application
    Filed: November 19, 2013
    Publication date: October 15, 2015
    Applicant: Castrol Limited
    Inventors: Peter Stuart Brett, Steven Paul Goodier, Piers Sebastian Harding, Gary Keith Jepps, Thomas James McPherson, Michael Paul Sheldon, Matthew Paul Wright
  • Publication number: 20150292372
    Abstract: A replaceable fluid container for an engine comprising: a reservoir for holding a fluid; a fluid coupling adapted to provide fluidic communication between the reservoir and a fluid circulation system of an engine; and a data provider arranged such that positioning the container to permit fluidic communication between the reservoir and the fluid circulation system of the engine arranges the data provider for data communication with an engine control device of the engine. There is also provided a method of facilitating control of an engine and an engine control system, apparatus and a vehicle.
    Type: Application
    Filed: November 19, 2013
    Publication date: October 15, 2015
    Applicant: Castrol Limited
    Inventors: Andrew Philip Barnes, Peter Stuart Brett, Steven Paul Goodier, Mark O'Malley
  • Patent number: 9127232
    Abstract: The use as an anti-wear additive and/or friction modifier in a non-aqueous lubricant composition and/or in a fuel composition of at least one long chain fatty acid ester of a hydroxy carboxylic acid in which the long chain fatty acid has at least 4 carbon atoms and the ester is an oil-soluble ester of a mono- or poly- hydroxy carboxylic acid having 1 to 4 groups which are independently carboxylic acid groups or lower hydrocarbyl esters thereof and in which, when the hydroxy carboxylic acid is a mono-hydroxy carboxylic acid, the ester has a long chain fatty acid ester moiety of the hydroxy group of the hydroxy carboxylic acid and, when the hydroxy carboxylic acid is a poly-hydroxy carboxylic acid, the ester has independently long chain fatty acid ester moieties of one or two of the hydroxy groups of the poly-hydroxy carboxylic acid. Also, a non-aqueous lubricant composition and a fuel composition for an internal combustion engine which comprises at least one of said long chain fatty acid esters.
    Type: Grant
    Filed: October 20, 2011
    Date of Patent: September 8, 2015
    Assignee: CASTROL LIMITED
    Inventor: Kevin Richard West
  • Publication number: 20150218479
    Abstract: The use as an ashless anti-wear additive in a non-aqueous lubricating composition and/or in a fuel composition, of at least one compound represented by the structural formula (I): wherein R4 represents H or a C1 to C9 hydrocarbyl group or formula (II) x, y and z are independently integers in the range 1 to 6; and R1, R2 and R3 each independently represent H or a C1 to C10 hydrocarbyl group. Also, a non-aqueous lubricating composition and a fuel composition for an internal combustion engine which comprise at least one of said compounds represented by structural formula (I).
    Type: Application
    Filed: May 17, 2013
    Publication date: August 6, 2015
    Applicant: CASTROL LIMITED
    Inventors: Samir Chahine, James Edward Moss
  • Patent number: 9080120
    Abstract: The use of an oil-soluble mono-, di-, or tri-glyceride of at least one hydroxy polycarboxylic acid, or a derivative thereof, as an anti-wear additive and/or friction modifier in a non-aqueous lubricant composition and/or in a fuel composition. Also, a non-aqueous lubricant composition and a fuel composition for an internal combustion engine which comprise at least one additive which is an oil-soluble mono-, di-, or tri-glyceride of at least one hydroxy polycarboxylic acid, or a derivative thereof.
    Type: Grant
    Filed: June 21, 2011
    Date of Patent: July 14, 2015
    Assignee: Castrol Limited
    Inventors: Ieuan Stephen Adams, Rana Ali, John Philip Davies, Kevin Richard West
  • Publication number: 20140274834
    Abstract: The present invention provides a multiple function dispersant viscosity index improver, a method of making the multiple function dispersant viscosity index improver, and a lubricating oil comprising the multiple function dispersant viscosity index improver. The multiple function dispersant viscosity index improver comprises two different functional groups, each directly grafted to a polymer backbone having graftable sites. The first functional group comprises the reaction product of an acylating agent and a first amine, the first amine comprising an aromatic primary amine, and the second functional group comprises the reaction product of an acylating agent and a second amine, the second amine comprising an aliphatic primary amine. The first functional group provides the dispersant viscosity index improver with soot handling performance attributes and the second functional group provides the dispersant viscosity index improver with sludge and varnish control performance attributes.
    Type: Application
    Filed: March 14, 2014
    Publication date: September 18, 2014
    Applicant: Castrol Limited
    Inventors: Richard P. Sauer, Nicholas W. Groeger
  • Patent number: 8703872
    Abstract: A multiple function polymer comprising a graft polymer of a polyolefin, a nitrogenous, ethylenically unsaturated, aliphatic or aromatic monomer having from 2 to about 50 carbon atoms, and an organo-metallic compound capable of reacting with said polyolefin is disclosed. Also disclosed is a process for making said multiple function graft polymer. Also disclosed is a lubricating oil comprising a lubricant base oil, the multiple function polymer, and optionally other dispersants. Also disclosed is a multiple function polymer comprising a graft polymer of a polyolefin, and an organo-metallic compound capable reacting with said polyolefin, and a process for making the same.
    Type: Grant
    Filed: March 9, 2006
    Date of Patent: April 22, 2014
    Assignee: Castrol Limited
    Inventor: Richard P. Sauer
  • Patent number: D815169
    Type: Grant
    Filed: June 11, 2015
    Date of Patent: April 10, 2018
    Assignee: Castrol Limited
    Inventors: Oliver Taylor, Peter Brett, Steven Goodier, Christopher Dawson, Michael Fairs