Patents by Inventor Paul John Duffield
Paul John Duffield has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10322201Abstract: An assembly for evaporating a volatile material is described, the assembly comprising a device and a refill which are detachable from one another: wherein the device comprises a magnetic induction coil configured to operate with an alternating current passed therethrough at a frequency of between substantially 20 KHz to substantially 500 KHz and one or more volatile fluid emanation channels containing at least one piece of heat-conducting, non-magnetic metal foil and/or deposited heat-conducting, non-magnetic metal; and wherein the refill comprises at least one magnetic susceptor having a coercivity of substantially 50 ampere/meter (HC) to substantially 1500 ampere/meter (HC) and a substantially liquid-tight sealed reservoir containing the volatile material; wherein, in use, the magnetic susceptor(s) is arranged to heat the material predominately by magnetic hysteresis when the magnetic susceptor(s) is at least partially positioned in the induced magnetic field generated, in use, when said alternating currentType: GrantFiled: August 7, 2014Date of Patent: June 18, 2019Assignee: RECKITT BENCKISER (BRANDS) LIMITEDInventor: Paul John Duffield
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Patent number: 10293069Abstract: An assembly for evaporating a volatile fluid is described, the assembly including a device and a refill which are detachable from one another: wherein the device includes a magnetic induction coil configured to operate with an alternating current passed therethrough at a frequency of between substantially 20 KHz to substantially 500 KHz and a volatile fluid transport part receiving area containing at least one piece of heat-conducting, non-magnetic metal foil and/or deposited heat-conducting, non-magnetic metal; and wherein the refill includes a reservoir for the volatile fluid, a volatile fluid transport part to draw the fluid from the reservoir, and at least one magnetic susceptor having a coercivity of substantially 50 ampere/meter (Hc) to substantially 1500 ampere/meter (Hc).Type: GrantFiled: June 14, 2018Date of Patent: May 21, 2019Assignee: RECKITT BENCKISER (BRANDS) LIMITEDInventor: Paul John Duffield
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Publication number: 20180289849Abstract: An assembly for evaporating a volatile fluid is described, the assembly comprising a device and a refill which are detachable from one another: wherein the device comprises a magnetic induction coil configured to operate with an alternating current passed therethrough at a frequency of between substantially 20 KHz to substantially 500 KHz and a volatile fluid transport means receiving area containing at least one piece of heat-conducting, non-magnetic metal foil and/or deposited heat-conducting, non-magnetic metal; and wherein the refill comprises a reservoir for the volatile fluid, a volatile fluid transport means to draw the fluid from the reservoir, and at least one magnetic susceptor having a coercivity of substantially 50 ampere/metre (Hc) to substantially 1500 ampere/metre (Hc).Type: ApplicationFiled: June 14, 2018Publication date: October 11, 2018Inventor: Paul John DUFFIELD
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Patent number: 10071179Abstract: An assembly adapted to evaporate a volatile fluid having a device and a refill which are detachable from one another: the device includes a magnetic induction coil configured to operate with an alternating current passed therethrough at a frequency of between substantially 20 KHz to substantially 500 KHz and a volatile fluid transport part receiving area containing at least one piece of heat-conducting, non-magnetic metal foil and/or deposited heat-conducting, non-magnetic metal; and the refill includes a reservoir for the volatile fluid, a volatile fluid transport part to draw the fluid from the reservoir, and at least one magnetic susceptor having a coercivity of substantially 50 ampere/meter (HC) to substantially 1500 ampere/meter (HC).Type: GrantFiled: August 7, 2014Date of Patent: September 11, 2018Assignee: RECKITT BENCKISER (BRANDS) LIMITEDInventor: Paul John Duffield
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Patent number: 9254953Abstract: A device for cleaning a surface comprises a pressurized container containing a cleaning composition; a nozzle through which the composition is arranged to be dispensed, in use, upon an actuation of a valve; a shroud attached to the container and surrounding the nozzle. The shroud has a hollow generally cylindrical portion adjacent to the nozzle for guiding the dispensed product in the direction in which it leaves the nozzle, and a flared portion at the end of the cylindrical portion furthest from the nozzle forming a spreading plate for guiding the dispensed product laterally when in contact, in use, with a surface to be cleaned. The nozzle is arranged to be actuated by movement of the container towards the shroud. The device comprises a reservoir. The nozzle and shroud are configured so that, in use, the cleaning composition is directed across the surface to be cleaned and into the reservoir.Type: GrantFiled: December 18, 2008Date of Patent: February 9, 2016Assignee: Reckitt & Colman (Overseas) LimitedInventors: Paul John Duffield, Madeleine Chadwick
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Patent number: 8479752Abstract: A device for cleaning a surface comprises a pressurized container containing a cleaning composition; a nozzle through which the composition is arranged to be dispensed, in use, upon an actuation of a valve; a shroud attached to the container and surrounding the nozzle. The shroud has a hollow generally cylindrical portion adjacent to the nozzle for guiding the dispensed product in the direction in which it leaves the nozzle, and a flared portion at the end of the cylindrical portion furthest from the nozzle forming a spreading plate for guiding the dispensed product laterally when in contact, in use, with a surface to be cleaned. The nozzle is arranged to be actuated by movement of the container towards the shroud. The device comprises a reservoir. The nozzle and shroud are configured so that, in use, the cleaning composition is directed across the surface to be cleaned and into the reservoir.Type: GrantFiled: December 18, 2008Date of Patent: July 9, 2013Assignee: Reckitt & Colman (Overseas) LimitedInventors: Paul John Duffield, Madeleine Chadwick
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Patent number: 8142731Abstract: A device for providing a relatively constant rate of dissolution of a solid article (2) within it has one or more opening (22) to allow the passage of water. There is a flow pathway between said one or more openings and the solid article, which flow pathway is obturated by a water-permeable packing (26), through which water must pass, in entering or leaving the device.Type: GrantFiled: June 13, 2006Date of Patent: March 27, 2012Assignee: Reckitt Benckiser (UK) LimitedInventors: Fabio Costiniti, Paul John Duffield, Andrew Robert Edwards, Mark Laing, Joceline Langford, Kerry Anne Lawrence
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Publication number: 20110250241Abstract: A rigid, water-soluble container is made of an injection molded poly(vinyl alcohol) and/or a cellulose ether, which container encases a fabric care, surface care or dishwashing composition; and a capsule container comprising at least two components made of one or more material(s) that can be molded and which are water soluble or water dispersible or in which a substantial part of the surface of these components is water soluble or water dispersible so as to leave perforations throughout the wall when the capsular container is placed in contact with an aqueous environment. The container has one to six compartments, preferably one, two or three, the content of the various compartments being accessible to the aqueous environment when the capsular container is exposed to such an aqueous environment.Type: ApplicationFiled: May 24, 2011Publication date: October 13, 2011Applicants: AQUASOL LTD., RECKITT BENCKISER (UK) LIMITEDInventors: Paul John DUFFIELD, Geoffrey Robert HAMMOND, David Brian EDWARDS, William John McCARTHY, Arnold Heyworth BECKETT, Anthony Douglas JACKMAN
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Publication number: 20110041882Abstract: A device for cleaning a surface comprises a pressurised container containing a cleaning composition; a nozzle through which the composition is arranged to be dispensed, in use, upon an actuation of a valve; a shroud attached to the container and surrounding the nozzle. The shroud has a hollow generally cylindrical portion adjacent to the nozzle for guiding the dispensed product in the direction in which it leaves the nozzle, and a flared portion at the end of the cylindrical portion furthest from the nozzle forming a spreading plate for guiding the dispensed product laterally when in contact, in use, with a surface to be cleaned. The nozzle is arranged to be actuated by movement of the container towards the shroud. The device comprises a reservoir. The nozzle and shroud are configured so that, in use, the cleaning composition is directed across the surface to be cleaned and into the reservoir.Type: ApplicationFiled: December 18, 2008Publication date: February 24, 2011Applicant: Reckitt & Colman (Overseas) LimitedInventors: Paul John Duffield, Madeleine Chadwick
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Patent number: 7891515Abstract: A water-soluble container comprising a first compartment containing a first composition, a second compartment containing a second composition and a rigid spacer located in the first compartment and/or the second compartment, such that a wall or wall section of the first and/or second compartment is prevented from contacting a wall or wall section of the other compartment.Type: GrantFiled: August 5, 2003Date of Patent: February 22, 2011Assignee: Reckitt Benckiser (UK) LimitedInventors: Philippe Bourgoin, Paul John Duffield, Fabienne Miler, Ralf Wiedemann
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Publication number: 20110000979Abstract: A device for cleaning a surface comprises a pressurised container containing a cleaning composition; a nozzle through which the composition is arranged to be dispensed, in use, upon an actuation of a valve; a shroud attached to the container and surrounding the nozzle. The shroud has a hollow generally cylindrical portion adjacent to the nozzle for guiding the dispensed product in the direction in which it leaves the nozzle, and a flared portion at the end of the cylindrical portion furthest from the nozzle forming a spreading plate for guiding the dispensed product laterally when in contact, in use, with a surface to be cleaned. The nozzle is arranged to be actuated by movement of the container towards the shroud. The device comprises a reservoir. The nozzle and shroud are configured so that, in use, the cleaning composition is directed across the surface to be cleaned and into the reservoir.Type: ApplicationFiled: December 18, 2008Publication date: January 6, 2011Applicant: Reckitt & Colman (Overseas) LimitedInventors: Paul John Duffield, Madelaine Chadwick
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Publication number: 20100021534Abstract: A rigid, water-soluble container is made of an injection molded poly(vinyl alcohol) and/or a cellulose ether, which container encases a fabric care, surface care or dishwashing composition; and a capsule container comprising at least two components made of one or more material(s) that can be molded and which are water soluble or water dispersible or in which a substantial part of the surface of these components is water soluble or water dispersible so as to leave perforations throughout the wall when the capsular container is placed in contact with an aqueous environment. The container has one to six compartments, preferably one, two or three, the content of the various compartments being accessible to the aqueous environment when the capsular container is exposed to such an aqueous environment.Type: ApplicationFiled: July 23, 2009Publication date: January 28, 2010Applicants: RECKITT BENCKISER (UK) LIMITED, AQUASOL LTD.Inventors: Paul John Duffield, Geoffrey Robert Hammond, David Brian Edwards, William John McCarthy, Arnold Heyworth Beckett, Anthony Douglas Jackman
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Patent number: 7638470Abstract: A liquid cleaning composition and a solid state catalyst are provided in combination. The solid state catalyst causes a chemical reaction in the liquid cleaning composition, when the liquid cleaning composition is brought into contact with it. The chemical reaction may increase the oxidising power of the liquid cleaning composition, or change its pH, or cause gas evolution, or release heat.Type: GrantFiled: July 18, 2005Date of Patent: December 29, 2009Assignee: Reckitt Benckiser (UK) LimitedInventors: Mark Coke, Paul John Duffield, Malcolm Tom McKechnie, Jane Warwick, Matthew White, James Young
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Publication number: 20090008820Abstract: A rigid, water-soluble container is made of an injection molded poly(vinyl alcohol) and/or a cellulose ether, which container encases a fabric care, surface care or dishwashing composition; and a capsule container comprising at least two components made of one or more material(s) that can be molded and which are water soluble or water dispersible or in which a substantial part of the surface of these components is water soluble or water dispersible so as to leave perforations throughout the wall when the capsular container is placed in contact with an aqueous environment. The container has one to six compartments, preferably one, two or three, the content of the various compartments being accessible to the aqueous environment when the capsular container is exposed to such an aqueous environment.Type: ApplicationFiled: July 10, 2008Publication date: January 8, 2009Applicants: Reckitt Benckiser (UK) Limited, Aquasol Ltd.Inventors: Paul John Duffield, Geoffrey Robert Hammond, David Brian Edwards, William John McCarthy, Arnold Heyworth Beckett, Anthony Douglas Jackman
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Publication number: 20080314911Abstract: A method of injection moulding an article from a water-soluble polymer, said method comprising: providing a mould comprising a male portion and a female portion defining a mould cavity, said portions being movable relative to one another to vary the volume of the mould cavity, injecting molten water-soluble polymer into the mould when the male portion and female portion are in a first position, and initiating relative movement of the male portion and female portion to reduce the volume of the mould cavity so as to force the molten water-soluble polymer already in the mould cavity into at least part of the remainder of the mould.Type: ApplicationFiled: November 15, 2006Publication date: December 25, 2008Applicant: RECKITT BENCKISER (UK) LIMITEDInventors: Paul John Duffield, Geoffrey Robert Hammond, Ralf Wiedemann
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Publication number: 20080296196Abstract: A rigid, water-soluble container is made of an injection molded poly(vinyl alcohol) and/or a cellulose ether, which container encases a fabric care, surface care or dishwashing composition; and a capsule container comprising at least two components made of one or more material(s) that can be molded and which are water soluble or water dispersible or in which a substantial part of the surface of these components is water soluble or water dispersible so as to leave perforations throughout the wall when the capsular container is placed in contact with an aqueous environment. The container has one to six compartments, preferably one, two or three, the content of the various compartments being accessible to the aqueous environment when the capsular container is exposed to such an aqueous environment.Type: ApplicationFiled: July 10, 2008Publication date: December 4, 2008Applicants: Reckitt Benckiser (UK) Limited, Aquasol Ltd.Inventors: Paul John DUFFIELD, Geoffrey Robert Hammond, David Brian Edwards, William John McCarthy, Arnold Heyworth Beckett, Anthony Douglas Jackman
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Publication number: 20080202172Abstract: A device for providing a relatively constant rate of dissolution of a solid article (2) within it has one or more opening (22) to allow the passage of water. There is a flow pathway between said one or more openings and the solid article, which flow pathway is obturated by a water-permeable packing (26), through which water must pass, in entering or leaving the device.Type: ApplicationFiled: June 13, 2006Publication date: August 28, 2008Applicant: RECKITT BENCKISER (UK) LIMITEDInventors: Fabio Costiniti, Paul John Duffield, Andrew Robert Edwards, Mark Laing, Joss Langford, Kerry Anne Lawrence
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Publication number: 20080136055Abstract: A method of making cleaning or water-softening tablets involves making a premix of cleaning or water-softening particulates and a lubricant, for example a sucrose ester or sorbitan ester; feeding the premix into a feed port of an extruder; feeding a binder, for example polyethylene glycol, into the extruder at or downstream of the feed port, the binder being a solid at room temperature but being mixed with the cleaning or water-softening particles as a liquid or becoming a liquid inside the extruder; and extruding the resulting mixture into strands which are separated into tablets.Type: ApplicationFiled: July 30, 2004Publication date: June 12, 2008Applicant: Reckitt Benckiser (UK) LimitedInventors: Steven Kenneth Cook, Paul John Duffield, Kerry Anne Hough, Carl Richard Smith
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Publication number: 20080118734Abstract: A method for forming an active material containing coating on a substrate, which method comprises the steps of: i) introducing one or more gaseous or atomised liquid and/or solid coating-forming materials which undergo chemical bond forming reactions within a plasma environment and one or more active materials which substantially do not undergo chemical bond forming reactions within a plasma environment, into an atmospheric or low pressure non-thermal equilibrium plasma discharge and/or an excited gas stream resulting therefrom, and ii) exposing the substrate to the resulting mixture of atomised coating-forming and at least one active material which are deposited onto the substrate surface to form a coating; wherein the substrate is not a wipe, cloth or sponge for household care or depilatory care or a water solute household cleaning unit dose product.Type: ApplicationFiled: May 13, 2005Publication date: May 22, 2008Applicant: DOW CORNING IRELAND LTD.Inventors: Andrew James Goodwin, Stuart Robert Leadley, Liam O'Neill, Paul John Duffield, Malcolm Tom McKechnie, Simon Pugh
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Patent number: 7219484Abstract: A process for preparing a laminated, thermoformed film which comprises: a. blowing a film-forming composition to form a bubble; b. collapsing the bubble to form a film stack comprising a plurality of layers; and c. heating said film stack in a mould to thermoform said film stack and to adhere the layers together.Type: GrantFiled: January 24, 2002Date of Patent: May 22, 2007Assignee: Reckitt Benckiser (UK) LimitedInventors: Paul John Duffield, Geoffrey Robert Hammond