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).

  • Patent number: 10322201
    Abstract: 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 current
    Type: Grant
    Filed: August 7, 2014
    Date of Patent: June 18, 2019
    Assignee: RECKITT BENCKISER (BRANDS) LIMITED
    Inventor: Paul John Duffield
  • Patent number: 10293069
    Abstract: 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: Grant
    Filed: June 14, 2018
    Date of Patent: May 21, 2019
    Assignee: RECKITT BENCKISER (BRANDS) LIMITED
    Inventor: Paul John Duffield
  • Publication number: 20180289849
    Abstract: 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: Application
    Filed: June 14, 2018
    Publication date: October 11, 2018
    Inventor: Paul John DUFFIELD
  • Patent number: 10071179
    Abstract: 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: Grant
    Filed: August 7, 2014
    Date of Patent: September 11, 2018
    Assignee: RECKITT BENCKISER (BRANDS) LIMITED
    Inventor: Paul John Duffield
  • Patent number: 9254953
    Abstract: 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: Grant
    Filed: December 18, 2008
    Date of Patent: February 9, 2016
    Assignee: Reckitt & Colman (Overseas) Limited
    Inventors: Paul John Duffield, Madeleine Chadwick
  • Patent number: 8479752
    Abstract: 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: Grant
    Filed: December 18, 2008
    Date of Patent: July 9, 2013
    Assignee: Reckitt & Colman (Overseas) Limited
    Inventors: Paul John Duffield, Madeleine Chadwick
  • Patent number: 8142731
    Abstract: 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: Grant
    Filed: June 13, 2006
    Date of Patent: March 27, 2012
    Assignee: Reckitt Benckiser (UK) Limited
    Inventors: Fabio Costiniti, Paul John Duffield, Andrew Robert Edwards, Mark Laing, Joceline Langford, Kerry Anne Lawrence
  • Publication number: 20110250241
    Abstract: 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: Application
    Filed: May 24, 2011
    Publication date: October 13, 2011
    Applicants: AQUASOL LTD., RECKITT BENCKISER (UK) LIMITED
    Inventors: Paul John DUFFIELD, Geoffrey Robert HAMMOND, David Brian EDWARDS, William John McCARTHY, Arnold Heyworth BECKETT, Anthony Douglas JACKMAN
  • Publication number: 20110041882
    Abstract: 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: Application
    Filed: December 18, 2008
    Publication date: February 24, 2011
    Applicant: Reckitt & Colman (Overseas) Limited
    Inventors: Paul John Duffield, Madeleine Chadwick
  • Patent number: 7891515
    Abstract: 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: Grant
    Filed: August 5, 2003
    Date of Patent: February 22, 2011
    Assignee: Reckitt Benckiser (UK) Limited
    Inventors: Philippe Bourgoin, Paul John Duffield, Fabienne Miler, Ralf Wiedemann
  • Publication number: 20110000979
    Abstract: 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: Application
    Filed: December 18, 2008
    Publication date: January 6, 2011
    Applicant: Reckitt & Colman (Overseas) Limited
    Inventors: Paul John Duffield, Madelaine Chadwick
  • Publication number: 20100021534
    Abstract: 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: Application
    Filed: July 23, 2009
    Publication date: January 28, 2010
    Applicants: 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
  • Patent number: 7638470
    Abstract: 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: Grant
    Filed: July 18, 2005
    Date of Patent: December 29, 2009
    Assignee: Reckitt Benckiser (UK) Limited
    Inventors: Mark Coke, Paul John Duffield, Malcolm Tom McKechnie, Jane Warwick, Matthew White, James Young
  • Publication number: 20090008820
    Abstract: 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: Application
    Filed: July 10, 2008
    Publication date: January 8, 2009
    Applicants: 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
  • Publication number: 20080314911
    Abstract: 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: Application
    Filed: November 15, 2006
    Publication date: December 25, 2008
    Applicant: RECKITT BENCKISER (UK) LIMITED
    Inventors: Paul John Duffield, Geoffrey Robert Hammond, Ralf Wiedemann
  • Publication number: 20080296196
    Abstract: 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: Application
    Filed: July 10, 2008
    Publication date: December 4, 2008
    Applicants: 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
  • Publication number: 20080202172
    Abstract: 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: Application
    Filed: June 13, 2006
    Publication date: August 28, 2008
    Applicant: RECKITT BENCKISER (UK) LIMITED
    Inventors: Fabio Costiniti, Paul John Duffield, Andrew Robert Edwards, Mark Laing, Joss Langford, Kerry Anne Lawrence
  • Publication number: 20080136055
    Abstract: 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: Application
    Filed: July 30, 2004
    Publication date: June 12, 2008
    Applicant: Reckitt Benckiser (UK) Limited
    Inventors: Steven Kenneth Cook, Paul John Duffield, Kerry Anne Hough, Carl Richard Smith
  • Publication number: 20080118734
    Abstract: 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: Application
    Filed: May 13, 2005
    Publication date: May 22, 2008
    Applicant: DOW CORNING IRELAND LTD.
    Inventors: Andrew James Goodwin, Stuart Robert Leadley, Liam O'Neill, Paul John Duffield, Malcolm Tom McKechnie, Simon Pugh
  • Patent number: 7219484
    Abstract: 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: Grant
    Filed: January 24, 2002
    Date of Patent: May 22, 2007
    Assignee: Reckitt Benckiser (UK) Limited
    Inventors: Paul John Duffield, Geoffrey Robert Hammond