Patents by Inventor Paul Duffield

Paul 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: 10350321
    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; 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 susceptor arranged to heat the volatile fluid transport means when said alternating current is passed through the induction coil. Refills, devices and methods of operation are also described.
    Type: Grant
    Filed: August 8, 2013
    Date of Patent: July 16, 2019
    Assignee: RECKITT & COLMAN (OVERSEAS) LIMITED
    Inventors: Paul Duffield, Ellen Piercy, Larry Tyson, Steve Walsh
  • Publication number: 20180206295
    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 wherein the refill comprises at least one magnetic susceptor having a coercivity of substantially 50 ampere/metre (Hc) to substantially 1500 ampere/metre (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 is passed through the induction coil. Refills, devices and methods of use are also described.
    Type: Application
    Filed: March 14, 2018
    Publication date: July 19, 2018
    Inventors: Paul DUFFIELD, Ellen PIERCY, Larry TYSON, Steve WALSH
  • Patent number: 9924566
    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 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 is passed through the induction coil. Refills, devices and methods of use are also described.
    Type: Grant
    Filed: August 8, 2013
    Date of Patent: March 20, 2018
    Assignee: RECKITT & COLMAN (OVERSEAS) LIMITED
    Inventors: Paul Duffield, Ellen Piercy, Larry Tyson, Steve Walsh
  • Patent number: 9877359
    Abstract: An assembly for evaporating a volatile fluid includes 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; the refill comprises a fluid reservoir containing the volatile fluid, a wick and at least one magnetic susceptor arranged to heat the wick predominately by magnetic hysteresis when said alternating current is passed through the induction coil, wherein the magnetic susceptor has a coercivity of substantially 50 ampere/meter (HC) to substantially 1500 ampere/meter (HC). Refills, devices and methods of operation are also described.
    Type: Grant
    Filed: August 8, 2013
    Date of Patent: January 23, 2018
    Assignee: RECKITT & COLMAN (OVERSEAS) LIMITED
    Inventors: Paul Duffield, Ellen Piercy, Larry Tyson, Steve Walsh
  • Publication number: 20150250028
    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 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 arranged to heat the wick predominately by magnetic hysteresis when said alternating current is passed through the induction coil, wherein the magnetic susceptor has a coercivity of substantially 50 ampere/metre (HC) to substantially 1500 ampere/metre (HC). Refills, devices and methods of operation are also described.
    Type: Application
    Filed: August 8, 2013
    Publication date: September 3, 2015
    Inventors: Paul Duffield, Ellen Piercy, Larry Tyson, Steve Walsh
  • Publication number: 20150223292
    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 wherein the refill comprises at least one magnetic susceptor having a coercivity of substantially 50 ampere/metre (HC) to substantially 1500 ampere/metre (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 is passed through the induction coil. Refills, devices and methods of use are also described.
    Type: Application
    Filed: August 8, 2013
    Publication date: August 6, 2015
    Inventors: Paul Duffield, Ellen Piercy, Larry Tyson, Steve Walsh
  • Publication number: 20150195871
    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; and wherein the refill comprises at least one susceptor and a substantially liquid-tight sealed reservoir containing the volatile material; wherein, in use, the susceptor(s) is arranged to heat the material when the susceptor(s) is at least partially positioned in the induced magnetic field generated, in use, when said alternating current is passed through the induction coil. Refills, devices and methods of use are also described.
    Type: Application
    Filed: August 8, 2013
    Publication date: July 9, 2015
    Applicant: Reckitt & Colman (Overseas) Limited
    Inventors: Paul Duffield, Ellen Piercy, Larry Tyson, Steve Walsh
  • Publication number: 20150157756
    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; 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 susceptor arranged to heat the volatile fluid transport means when said alternating current is passed through the induction coil. Refills, devices and methods of operation are also described.
    Type: Application
    Filed: August 8, 2013
    Publication date: June 11, 2015
    Applicant: Reckitt & Colman (Overseas) Limited
    Inventors: Paul Duffield, Ellen Piercy, Larry Tyson, Steve Walsh
  • Patent number: 8496014
    Abstract: The invention relates to a device for cleaning carpets, fabric and upholstery. More specifically, the invention relates to the use of pressurized aerosol containers for cleaning carpets, fabric and upholstery.
    Type: Grant
    Filed: October 1, 2007
    Date of Patent: July 30, 2013
    Assignee: Reckitt Benckiser (UK) Limited
    Inventors: Gavin Bown, Paul Duffield, Steve Walsh
  • Publication number: 20090293921
    Abstract: The invention relates to a device for cleaning carpets, fabric and upholstery. More specifically, the invention relates to the use of pressurised aerosol containers for cleaning carpets, fabric and upholstery.
    Type: Application
    Filed: October 1, 2007
    Publication date: December 3, 2009
    Applicant: Reckitt Benckiser (UK) Limited
    Inventors: Gavin Bown, Paul Duffield, Steve Walsh
  • Publication number: 20080073239
    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: August 24, 2007
    Publication date: March 27, 2008
    Inventors: Paul Duffield, Geoffrey Hammond, David Edwards, William McCarthy, Arnold Beckett, Anthony Jackman
  • Publication number: 20070254824
    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: Application
    Filed: July 18, 2005
    Publication date: November 1, 2007
    Applicant: RECKITT BENCKISER (UK) LIMITED
    Inventors: Mark Coke, Paul Duffield, Malcolm McKechnie, Jane Wauwick, Matthew White, James Young
  • Publication number: 20070202315
    Abstract: A method is provided for forming an active material containing coating on a substrate. The substrate is suitably a wipe, cloth or sponge for household use, or a water-soluble household cleaning unit dose product. The 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 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.
    Type: Application
    Filed: May 13, 2005
    Publication date: August 30, 2007
    Applicant: RECKITT BENCKISER (UK) LIMITED
    Inventors: Paul Duffield, Andrew Goodwin, Stuart Leadley, Malcolm McKechine, Liam O'Neill, Simon Pugh
  • Publication number: 20070095830
    Abstract: Packaging for moisture-sensitive material, in particular detergent material, comprising an outer container comprising a container body and a lid cover hingedly fixed to the container body, and an inner bag made of water-impermeable flexible sheet material for receiving the moisture-sensitive material, the mouth of the inner bag being fixed both at the lid cover and at the sidewalls of the container body in such a way that, when the lid cover is lifted, the lower part of the inner bag is significantly lifted from the bottom of the container body.
    Type: Application
    Filed: November 8, 2001
    Publication date: May 3, 2007
    Inventors: Ralf Wiedemann, Marcus Guzmann, Paul Duffield, Jacobus Van Diepen, Geoffrey Hammond
  • Publication number: 20070079454
    Abstract: A process for sealing a surface of a first water-soluble member to a surface of a second water-soluble member, wherein an atomised aqueous composition is applied to at least one of the surfaces and the surfaces are contacted together to form a seal.
    Type: Application
    Filed: May 4, 2004
    Publication date: April 12, 2007
    Applicant: Reckitt Benckiser (UK) Limited
    Inventor: Paul Duffield
  • Publication number: 20060243630
    Abstract: A water-soluble container comprising at least one first compartment, said one or each first compartment containing a composition that comprises less than 5 wt % free water, and a second compartment containing a second composition, wherein the second composition generates a gas on exposure to the atmosphere or water, and more than 50% of the surface area of the second compartment is enclosed by the first compartment or first compartments.
    Type: Application
    Filed: July 7, 2003
    Publication date: November 2, 2006
    Inventors: Philippe Bourgoin, Paul Duffield, Marcus Guzmann, Fabienne Miler, Ralf Wiedemann
  • Publication number: 20060230709
    Abstract: A process for the preparation of a package containing a compacted particulate composition, comprising: a. placing a compacted particulate composition on a first film; b. positioning a second film over said composition; and c. sealing said first film to said second film and at least partly evacuating the atmosphere from the inside of said package so as to allow said first film and said second film to cling to said composition.
    Type: Application
    Filed: May 4, 2004
    Publication date: October 19, 2006
    Applicant: Reckitt Benckiser (UK) Limited
    Inventors: Paul Duffield, David Edwards
  • Publication number: 20060049076
    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: Application
    Filed: August 5, 2003
    Publication date: March 9, 2006
    Applicant: Reckitt Benckiser (UK) Limited
    Inventors: Philippe Bourgoin, Paul Duffield, Fabienne Miler, Ralf Wiedemann
  • Publication number: 20060000831
    Abstract: Packaging for moisture-sensitive material, in particular detergent material, comprising an outer container comprising a container body and a lid cover hingedly fixed to the container body, and an inner bag made of water-impermeable flexible sheet material for receiving the moisture-sensitive material, the mouth of the inner bag being fixed both at the lid cover and at the sidewalls of the container body in such a way that, when the lid cover is lifted, the lower part of the inner bag is significantly lifted from the bottom of the container body.
    Type: Application
    Filed: November 8, 2001
    Publication date: January 5, 2006
    Inventors: Ralf Wiedemann, Marcus Guzmann, Paul Duffield, Jacobus Van Diepen, Geoffrey Hammond
  • Publication number: 20050263236
    Abstract: A process for preparing a water-soluble container which comprises: a) thermoforming a first poly(vinyl alcohol) film having a water content of less than 5 wt % to produce a pocket; b) filling the pocket with a composition; c) placing a second film on top of the filled pocket; and d) scaling the first film and second film together.
    Type: Application
    Filed: July 28, 2005
    Publication date: December 1, 2005
    Inventor: Paul Duffield