Patents Assigned to Castrol Limited
  • Patent number: 11952552
    Abstract: An industrial fluid additive composition comprises one or more sequestering agents one or more compounds of formula (A): (A) wherein R1 and R2 are independently selected from substituted hydrocarbyl moieties containing from 1 to 10 carbon atoms or unsubstituted hydrocarbyl moieties containing from 1 to 10 carbon atoms.
    Type: Grant
    Filed: October 25, 2022
    Date of Patent: April 9, 2024
    Assignee: Castrol Limited
    Inventor: Thomas Peter Hardt
  • Patent number: 11732212
    Abstract: This disclosure relates generally to metalworking fluids. This disclosure relates more particularly to water-soluble metalworking fluids that include high viscosity polymers, and that can be used in metal cold rolling operations.
    Type: Grant
    Filed: December 4, 2019
    Date of Patent: August 22, 2023
    Assignee: Castrol Limited
    Inventor: Robert Paul Hudson
  • Patent number: 11535810
    Abstract: A method for removing aromatic compounds from a hydrocarbon fluid comprises contacting the hydrocarbon fluid with a solid-phase polymeric material. The solid-phase polymeric material comprises a cross-linked polymer which contains aromatic groups. The method may be used to prevent the build-up of sludge and soot in a lubricant system in an internal combustion engine. A polymer bead comprising a solid-phase polymeric material is also provided.
    Type: Grant
    Filed: April 13, 2017
    Date of Patent: December 27, 2022
    Assignee: Castrol Limited
    Inventors: Peter Cormack, Timothy McCabe, James Edward Moss, Richard Pearson, John Michael Redshaw, Kevin Richard West
  • Patent number: 11499118
    Abstract: An industrial fluid additive composition comprises one or more sequestering agents one or more compounds of formula (A): (A) wherein R1 and R2 are independently selected from substituted hydrocarbyl moieties containing from 1 to 10 carbon atoms or unsubstituted hydrocarbyl moieties containing from 1 to 10 carbon atoms.
    Type: Grant
    Filed: October 4, 2018
    Date of Patent: November 15, 2022
    Assignee: CASTROL LIMITED
    Inventor: Thomas Peter Hardt
  • Patent number: 11492566
    Abstract: The present invention provides a lubricant composition comprising a base oil of lubricating viscosity, wherein the base oil comprises an ether base stock of formula (A), where: Ra and Rb are aliphatic hydrocarbyl groups and may be the same or different; the lubricant composition further comprising at least one aminic anti-oxidant and at least one phenolic anti-oxidant. In some embodiments, the ether base stock has the formula (1), where: R1 R2, R3, R4, R5 and R6 are as defined herein. The lubricant composition may be used for lubricating a surface in an internal combustion engine as well as for improving the fuel economy performance and/or piston cleanliness performance of an engine and/or a vehicle, such as an automotive vehicle associated with an internal combustion engine.
    Type: Grant
    Filed: December 14, 2017
    Date of Patent: November 8, 2022
    Assignee: Castrol Limited
    Inventors: Angela Breakspear, Gordon David Lamb, John Michael Redshaw, Kevin Richard West, Rebecca Frances Jennings
  • Patent number: 11407958
    Abstract: A lubricant composition comprises an anti-wear and or/friction modifying additive which is an ester of a fatty acid and a polyol. At least 50% by weight of the additive is in the form of a mono-ester, and is preferably a mono-glyceride. The lubricant composition may be used in an internal combustion engine.
    Type: Grant
    Filed: October 29, 2019
    Date of Patent: August 9, 2022
    Assignee: Castrol Limited
    Inventors: Thakor Kikabhai, Laura De Laguno Gorria, Bernadeta Anna Pochopien, Peter Timothy Seden
  • Patent number: 11022012
    Abstract: A method of filling and/or draining a replaceable fluid container for an engine or vehicle, wherein the replaceable fluid container comprises a fluid reservoir and a plurality of container ports, wherein replaceable fluid container is configured to be docked with a dock associated with the vehicle or engine with the plurality of container ports positioned on and coupled to at least one port of the dock to place the fluid reservoir in fluidic communication with a fluid circulation system associated with the vehicle or engine, wherein each of the plurality of container ports has an operational function, wherein the operational function of at least one of the plurality container ports is that of being a fluid outlet port to allow the supply of fluid from the fluid reservoir, the method comprising modifying the operational function of at least one of the plurality of container ports to assist filling and/or draining of the reservoir, a related filling and/or draining interface plate configured to interface betwee
    Type: Grant
    Filed: September 23, 2016
    Date of Patent: June 1, 2021
    Assignee: Castrol Limited
    Inventors: Donald Butterworth, Daniel Cadigan, William Rosanio
  • Patent number: 11014761
    Abstract: A conveyor condition monitor, for use with a conveyor comprising a plurality of trollies (12) running along a conveyor rail (14) and linked to one another by a chain link system, is disclosed. The monitor comprises a conveyor monitoring station (3) and a first deformation sensor (5a, 5b). The deformation sensor (5b) is in communication with the conveyor monitor, and is adapted to notify the conveyor monitor of the presence of a deformed (13b) trolley (12) in the conveyor.
    Type: Grant
    Filed: June 26, 2017
    Date of Patent: May 25, 2021
    Assignee: Castrol Limited
    Inventors: Scott Alan Johnson, Richard Allen Moen, William Thomas Preble
  • Patent number: 10982166
    Abstract: This invention relates to the use of a boron-containing additive in a non-aqueous lubricant composition as an inhibit or of lead corrosion associated with ashless, organic ester, anti-wear additives and/or friction modifiers.
    Type: Grant
    Filed: December 17, 2015
    Date of Patent: April 20, 2021
    Assignee: Castrol Limited
    Inventors: Aldo Guiducci, Gordon Lamb, Kevin West
  • Patent number: 10935538
    Abstract: A method for assessing the condition of an oil using a portable computer coupled to a camera comprises: separating wear particles from a sample of the oil; capturing an image of the separated wear particles using the camera; and analysing the image and generating information about the condition of the oil using the portable computer. The method may be used for tracking the condition of an oil in a machine over a period of time. The methods are particularly useful for assessing the condition of an industrial oil e.g. a lubricating oil that has been used to lubricate moving parts in a machine.
    Type: Grant
    Filed: May 16, 2017
    Date of Patent: March 2, 2021
    Assignee: Castrol Limited
    Inventors: Sander Gaemers, Bryan Rabenau, Marcel Jerusalem
  • Patent number: 10907111
    Abstract: This invention relates to the use of a metallic or non-metallic detergent which is a hydrocarbyl-substituted salicylic acid or a derivative thereof in a non-aqueous lubricant composition as an inhibitor of lead corrosion associated with ashless, organic ester, anti-wear additives and/or friction modifiers.
    Type: Grant
    Filed: December 17, 2015
    Date of Patent: February 2, 2021
    Assignee: Castrol Limited
    Inventors: Aldo Guiducci, Gordon Lamb, Kevin West
  • Patent number: 10752418
    Abstract: A fluid storage and dispensing system that safely and efficiently stores all grades of motor oil is provided. The system is configured to accurately dispense motor oil into vehicles. The system may also be used for the storage of and dispensing of other fluids.
    Type: Grant
    Filed: June 23, 2017
    Date of Patent: August 25, 2020
    Assignee: Castrol Limited
    Inventors: Ame Cameron, Greg Saxon
  • Patent number: 10704451
    Abstract: In one embodiment, there is provided a heat exchanger for equipment, having: at least one phase change material; and at least one heat exchange interface for heat exchange between the phase change material and a fluid flowing within, into and/or from a replaceable fluid container for the equipment, the replaceable fluid container having at least one fluid port adapted to couple to a fluid circulation system of the equipment when the replaceable container is coupled to a dock.
    Type: Grant
    Filed: December 16, 2016
    Date of Patent: July 7, 2020
    Assignee: Castrol Limited
    Inventor: Timothy Hugh Lake
  • Patent number: 10697336
    Abstract: In one embodiment, there is provided a dock for a replaceable fluid container for an engine, the fluid container having: a fluid reservoir; and at least one fluid port having a coupling adapted to couple with a fluid circulation system associated with the engine; the dock having: a fastening mechanism configured to cooperate with the container such that, as the container is inserted into the dock, the fastening mechanism acts first to seat the fluid container in the dock but in an undocked condition and then, as the container is inserted further into the dock, acts to bring the fluid container into an engaged condition in which the fluid container is docked with a docking interface of the dock.
    Type: Grant
    Filed: May 21, 2015
    Date of Patent: June 30, 2020
    Assignee: Castrol Limited
    Inventors: Christopher Dawson, Steven Paul Goodier, Gary Howard, Adrian Michael Woodward
  • Patent number: 10690025
    Abstract: A replaceable fluid container for an engine or a vehicle, comprising: a fluid reservoir, at least one fluid port adapted to couple with a fluid circulation system; and an actuator, configured to be operated between a first condition and a second condition, wherein the actuator is configured, in the first condition, to enable the fluid container to be inserted into and/or held in a dock, in a seated but undocked condition, and inhibit docking of the fluid container to the dock; and wherein the actuator is further configured, when operated from the first condition to the second condition with the fluid container being in the seated but undocked condition, to enable the fluid container to dock in an engaged condition with the dock, associated docks and associated methods of supplying a fluid to a vehicle or an engine and of decoupling a fluid container from a fluid circulation system of a vehicle or an engine.
    Type: Grant
    Filed: September 23, 2016
    Date of Patent: June 23, 2020
    Assignee: Castrol Limited
    Inventors: Steven Paul Goodier, Oliver Paul Taylor, Peter Stuart Brett, Mike Fairs, Piers Sebastian Harding, Christopher Dawson
  • Patent number: 10690026
    Abstract: A replaceable fluid container for an engine or a vehicle, comprising: a fluid reservoir, at least one fluid port adapted to couple with a fluid circulation system; and an actuator, configured to be operated between a first condition and a second condition, wherein the actuator is configured, in the first condition, to enable the fluid container to be inserted into and/or held in a dock, in a seated but undocked condition, and inhibit docking of the fluid container to the dock; and wherein the actuator is further configured, when operated from the first condition to the second condition with the fluid container being in the seated but undocked condition, to enable the fluid container to dock in an engaged condition with the dock, associated docks and associated methods of supplying a fluid to a vehicle or an engine and of decoupling a fluid container from a fluid circulation system of a vehicle or an engine.
    Type: Grant
    Filed: May 4, 2019
    Date of Patent: June 23, 2020
    Assignee: Castrol Limited
    Inventors: Steven Paul Goodier, Oliver Paul Taylor, Peter Stuart Brett, Mike Fairs, Piers Sebastian Harding, Christopher Dawson
  • Patent number: D919435
    Type: Grant
    Filed: July 17, 2019
    Date of Patent: May 18, 2021
    Assignee: CASTROL LIMITED
    Inventors: Richard Currie, Brian Lodge, Roger Morris, Simon Clegg, Amzar Yee Chee Seng, Roger Chua Peng Tian
  • Patent number: D919436
    Type: Grant
    Filed: May 1, 2019
    Date of Patent: May 18, 2021
    Assignee: CASTROL LIMITED
    Inventors: Richard Currie, Brian Lodge, Roger Morris, Simon Clegg, Amzar Yee Chee Seng, Roger Chua Peng Tian
  • Patent number: D981853
    Type: Grant
    Filed: March 17, 2021
    Date of Patent: March 28, 2023
    Assignee: CASTROL LIMITED
    Inventors: Richard Currie, Sener Karagulle
  • Patent number: D982447
    Type: Grant
    Filed: March 17, 2021
    Date of Patent: April 4, 2023
    Assignee: CASTROL LIMITED
    Inventors: Richard Currie, Sener Karagulle