Patents by Inventor John Gavin MacDonald

John Gavin MacDonald 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).

  • Publication number: 20100215754
    Abstract: A delivery system for various functional compounds is disclosed. The delivery system incorporates a composition containing alumina. Various functional materials containing particular moieties may be adsorbed onto the alumina and used as desired. The functional compounds can be, for instance, pharmaceuticals, xenobiotics, anti-microbial agents, anti-viral agents, UV absorbers, odor control agents, fragrances, and the like. In one particular embodiment, for instance, certain dyes can be adsorbed onto the alumina surfaces. Once the dye is adsorbed onto the alumina surface, the resulting particles can be combined with a liquid vehicle for use in any suitable printing process.
    Type: Application
    Filed: February 23, 2010
    Publication date: August 26, 2010
    Applicant: KIMBERLY-CLARK WORLDWIDE, INC.
    Inventors: Jason Lye, John Gavin MacDonald
  • Publication number: 20100211034
    Abstract: This invention concerns extrudates having high surface area materials and at least one metal ion adsorbed onto the high surface area material. The extrudates may be breathable films, multilayer laminates and pultruded articles. The extrudates may be made into storage and packaging material to reduce odor and retard the ripening of fruit. The extrudates, if in the form of a breathable film or multilayer laminate may be used as outer cover material for personal care products like diapers, adult incontinence products, training pants and the like. The high surface area particle-containing extrudate may be made by adding modified nanoparticles to a filler before the filler is treated with a fatty acid. Alternatively, a filler previously treated with a fatty acid may be modified by subjecting the filler to sonic energy in the presence of an aqueous solution of metal ions and nanoparticles.
    Type: Application
    Filed: October 16, 2003
    Publication date: August 19, 2010
    Inventors: Jeffrey Eldon Fish, Sharon Linda Greene, John Gavin MacDonald, Jaeho Kim
  • Publication number: 20100206742
    Abstract: A system is disclosed for treating hydrogen isotopes. Specifically, the system includes a treatment chamber that has an elongate housing through which liquid and gas isotopes flow longitudinally from an inlet port to an outlet port thereof. An elongate ultrasonic waveguide assembly extends within the housing and is operable at a predetermined ultrasonic frequency and a predetermined electrical potential to ultrasonically enhance the concentration of dissolved hydrogen gas isotopes within the housing or energize and electrolyze the liquid and gas isotopes within the housing. An elongate ultrasonic horn of the waveguide assembly is disposed at least in part intermediate the inlet and outlet ports, and has a plurality of discrete agitating members in contact with and extending transversely outward from the horn intermediate the inlet and outlet ports in longitudinally spaced relationship with each other.
    Type: Application
    Filed: February 11, 2010
    Publication date: August 19, 2010
    Applicant: KIMBERLY-CLARK WORLDWIDE, INC.
    Inventors: Robert Allen Janssen, John Glen Ahles, Thomas David Ehlert, John Gavin MacDonald, Earl C. McCraw, JR., Patrick Sean McNichols, Paul Warren Rasmussen, Steve Roffers
  • Patent number: 7740666
    Abstract: In a process for dyeing a textile web having a first face and a second face opposite the first face, a solvent-based dye having at least one component that has a thermal conductivity substantially greater than that of the solvent is applied to the textile web. The web is then moved, in an open configuration thereof, over a contact surface of an ultrasonic vibration system with the textile web in direct contact with the contact surface of the ultrasonic vibration system. The ultrasonic vibration system is operated to impart ultrasonic energy to the textile web at the contact surface of the ultrasonic vibration system. In one embodiment, the dye is applied to the first face of the web and the web is then moved over the contact surface of the ultrasonic vibration system with the second face of the web in direct contact with the contact surface.
    Type: Grant
    Filed: December 28, 2006
    Date of Patent: June 22, 2010
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Robert Allen Janssen, Thomas David Ehlert, John Gavin MacDonald, Earl C. McCraw, Jr., Patrick Sean McNichols, Michael Joseph Garvey
  • Publication number: 20100152042
    Abstract: A composition comprising particles with a transition metal imbedded therein is disclosed. Specifically, the ratio of particles to the transition metal is from about 25:1 to about 50:1. The composition is prepared in the presence of ultrasonic energy. The particles are selected from the group consisting of organic particles, inorganic particles, and metal particles.
    Type: Application
    Filed: December 15, 2008
    Publication date: June 17, 2010
    Applicant: KIMBERLY-CLARK WORLDWIDE, INC.
    Inventors: Bao Trong Do, Thomas David Ehlert, Robert Allen Janssen, John Gavin MacDonald, Paul Warren Rasmussen, Shiming Zhuang
  • Publication number: 20100147203
    Abstract: A planar substrate has a moisture activated shrinking filament applied thereon. When wetted, the shrinking filament shrinks and causes the planar substrate to gather and pucker. The planar substrate with the filament thereon may be compressed into a compact shape when in a dry state.
    Type: Application
    Filed: December 16, 2008
    Publication date: June 17, 2010
    Inventors: John Gavin MacDonald, Jaeho Kim, WanDuk Lee, Jin Heo, CholWon Koh, SangSoo Lee
  • Publication number: 20100150859
    Abstract: A method of preparing metal-modified silica particles is disclosed. Specifically, a treatment chamber is provided in which a first and a second formulation are ultrasonically mixed to prepare metal-modified silica particles. The treatment chamber has an elongate housing through which the first and second formulations flow longitudinally from a first inlet port and a second inlet port, respectively, to an outlet port thereof. An elongate ultrasonic waveguide assembly extends within the housing and is operable at a predetermined ultrasonic frequency to ultrasonically energize the formulations within the housing. An elongate ultrasonic horn of the waveguide assembly is disposed at least in part intermediate the inlet and outlet ports, and has a plurality of discrete agitating members in contact with and extending transversely outward from the horn intermediate the inlet and outlet ports in longitudinally spaced relationship with each other.
    Type: Application
    Filed: December 15, 2008
    Publication date: June 17, 2010
    Applicant: KIMBERLY-CLARK WORLDWIDE, INC.
    Inventors: Bao Trong Do, Thomas David Ehlert, Robert Allen Janssen, John Gavin MacDonald, Paul Warren Rasmussen, Shiming Zhuang
  • Publication number: 20100152642
    Abstract: An absorbent article includes an absorbent body in contact with a moisture activatable shrinking yarn in the form of a metering string. The metering string includes a hanging portion that is at least initially visible to a user when the absorbent article is in use. By observing the change in length of the hanging portion, a user wearing the absorbent article can determine how saturated the absorbent article has become. The metering string may be used with absorbent articles such as tampons and diapers.
    Type: Application
    Filed: December 17, 2008
    Publication date: June 17, 2010
    Inventors: Jaeho Kim, John Gavin MacDonald
  • Patent number: 7727513
    Abstract: A method for rapidly detecting infectious conjunctivitis in a host is provided. The method includes contacting an ocular test sample with a chromogen (e.g., Reichardt's dye) that exhibits a color change in the presence of a microbe. The present inventors have discovered that the extent of the color change may vary depending on whether the microbe is a bacteria or virus. Without intending to be limited by theory, the present inventors believe that the chromogen interacts with the peptidoglycan-based cell wall structure of bacteria to induce a color change that is even more apparent at infectious levels. It is believed that this interaction occurs to a much greater extent in bacteria than in viruses. Accordingly, although the chromogen may still undergo a color change in the presence of the viruses, it is typically to a much lesser extent.
    Type: Grant
    Filed: December 15, 2005
    Date of Patent: June 1, 2010
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: John Gavin MacDonald, Stephanie M. Martin, Jason Lye
  • Publication number: 20100125262
    Abstract: This invention concerns an odor control layer for personal care products having a dried, aqueously deposited formulation of odor sorbent and binder. This layer may be placed in a personal care product like diapers, training pants, absorbent underpants, adult incontinence products, and feminine hygiene products. The amount of odor sorbent present may be in an amount of between about 2 and 80 weight percent on a dry basis. The layer may be a tissue, film, paper towel, nonwoven web, coform, airlaid, wet-laid, bonded-carded web and laminates thereof.
    Type: Application
    Filed: January 21, 2010
    Publication date: May 20, 2010
    Applicant: KIMBERLY-CLARK WORLDWIDE, INC.
    Inventors: John Gavin MacDonald, Roger Bradshaw Quincy, III
  • Publication number: 20100120644
    Abstract: There is provided a color change composition that remains stable in a single phase and that contains an indicator that produces an observable color change after a period of time to show that sufficient cleaning has been done or to indicate the thoroughness of the cleaning. This use indicating color change is useful for, for example, in soap for teaching children to wash their hands for a sufficient period of time. This composition may be added to many different base materials to indicate time of use or as a way to introduce enjoyment to the activity.
    Type: Application
    Filed: January 22, 2010
    Publication date: May 13, 2010
    Applicant: KIMBERLY-CLARK WORLDWIDE, INC.
    Inventors: John Gavin MacDonald, Yanbin Huang, Kaiyuan Yang, Jaeho Kim, Ning Wei
  • Patent number: 7712353
    Abstract: In a system and process for ultrasonically treating a liquid having a thermal conductivity, an elongate treatment chamber housing has an inlet and an outlet such that liquid flows longitudinally through an interior space of the chamber from the inlet to the outlet. At least part of the interior space of the chamber housing is filled with a bed of particles having a thermal conductivity substantially greater than that of the liquid whereby a ratio of the thermal conductivity of the particles to the thermal conductivity of the liquid is in the range of about 2:1 to about 400:1. An elongate ultrasonic waveguide assembly extends longitudinally within the interior space of the housing and is operable at a predetermined ultrasonic frequency to generate mechanical ultrasonic vibration within the housing in direct contact with the liquid flowing therein as the liquid flows through the bed of particles.
    Type: Grant
    Filed: December 28, 2006
    Date of Patent: May 11, 2010
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Robert Allen Janssen, Thomas David Ehlert, John Gavin MacDonald, Earl C. McCraw, Jr., Patrick Sean McNichols
  • Patent number: 7703456
    Abstract: A coating composition that is incorporated into a facemask to reduce fogging and glare is provided. For example, in one embodiment, the facemask contains a shield or visor formed from a transparent substrate having at least one surface applied with the coating composition of the present invention. The present inventors have unexpectedly discovered that one or more water-soluble organic polymers, such as ethyl hydroxyethylcellulose, may be utilized as a principal component of the coating composition to reduce fogging and glare in a simple, yet effective manner.
    Type: Grant
    Filed: December 18, 2003
    Date of Patent: April 27, 2010
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Ali Yahiaoui, Roger Bradshaw Quincy, III, John Gavin MacDonald, Eric Clayton Steindorf, Joel Brostin
  • Patent number: 7687245
    Abstract: Suitable dyes are used herein to indicate the presence of microbial contamination by spraying them onto surfaces in the form of an aqueous solution. The dye solution may also be allowed to dry, thus producing the dried residue of an aqueous solution. It's believed that these dyes change color in response to a change in polarity of the environment. Since water is a polar solvent and most bacteria are made from non-polar substances, the presence of bacteria changes the polarity of the environment, triggering a change visible by the unaided eye.
    Type: Grant
    Filed: December 16, 2004
    Date of Patent: March 30, 2010
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Jason Lye, John Gavin MacDonald, Ning Wei, Stephanie Martin
  • Patent number: 7678367
    Abstract: A method for reducing odor is provided. In one embodiment, the method comprises forming a coordination complex between particles having a positive zeta potential and a transition metal. The method further comprises contacting the coordination complex with an odorous compound, the transition metal providing one or more active sites for capturing the odorous compound. For example, in one embodiment, the particles are formed from alumina-coated silica. In addition, the coordination complex may be formed using a bifunctional chelating agent.
    Type: Grant
    Filed: October 16, 2003
    Date of Patent: March 16, 2010
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Kevin P. McGrath, Bao Trong Do, John Gavin MacDonald
  • Patent number: 7674300
    Abstract: In a process for dyeing a textile web, dye is applied directly to a first face of the textile web other than by saturating the web. The web is moved in an open configuration thereof over a contact surface of an ultrasonic vibration system with a second (opposite) face of the textile web in direct contact with the contact surface of the ultrasonic vibration system and the first face free from contact with the contact surface of the ultrasonic vibration system. The ultrasonic vibration system is operated to impart ultrasonic energy to the second face of the textile web to facilitate movement of the dye from the first face of the web into and through the web to the second face thereof. In another embodiment, dye is applied to the first face of the textile web without applying the dye to the second face of the web.
    Type: Grant
    Filed: December 28, 2006
    Date of Patent: March 9, 2010
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Robert Allen Janssen, Thomas David Ehlert, John Gavin MacDonald, Earl C. McCraw, Jr., Patrick Sean McNichols, Michael Joseph Garvey
  • Patent number: 7673516
    Abstract: An ultrasonic treatment chamber and a process for ultrasonically treating a liquid in an ultrasonic treatment chamber include an elongate, generally tubular housing having an inlet and an outlet spaced longitudinally from the inlet. Liquid is directed into the housing at the housing inlet for longitudinal flow within the housing to the housing outlet. Mechanical ultrasonic vibration is generated within the housing in direct contact with the liquid flowing within the housing, with the direct contact being upstream of the housing outlet. A standing acoustic wave is produced within the housing with the standing acoustic wave having a node spaced longitudinally from the housing outlet.
    Type: Grant
    Filed: December 28, 2006
    Date of Patent: March 9, 2010
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Robert Allen Janssen, Thomas David Ehlert, John Gavin MacDonald, Earl C. McCraw, Jr., Patrick Sean McNichols
  • Patent number: 7666410
    Abstract: A delivery system for various functional compounds is disclosed. The delivery system incorporates a composition containing alumina. Various functional materials containing particular moieties may be adsorbed onto the alumina and used as desired. The functional compounds can be, for instance, pharmaceuticals, xenobiotics, anti-microbial agents, anti-viral agents, UV absorbers, odor control agents, fragrances, and the like. In one particular embodiment, for instance, certain dyes can be adsorbed onto the alumina surfaces. Once the dye is adsorbed onto the alumina surface, the resulting particles can be combined with a liquid vehicle for use in any suitable printing process.
    Type: Grant
    Filed: December 20, 2002
    Date of Patent: February 23, 2010
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Jason Lye, John Gavin MacDonald
  • Patent number: 7655829
    Abstract: An absorbent pad configured for placement under a patient to absorb bodily fluids includes a liquid permeable cover layer, a liquid impermeable back sheet, and an absorbent structure disposed between the cover layer and the back sheet. At least one of the cover layer, back sheet, or absorbent structure incorporates a dried application of a liquid activated carbon ink having activated carbon, a binder, and a solvent, with the dried application of ink having a solids add-on level of at least about 2%. The activated carbon ink is applied in a pattern over between about 25% to about 95% of a total upper surface area of the pad and presents a visually contrasting color against a background color of the pad or a contrasting ink.
    Type: Grant
    Filed: July 29, 2005
    Date of Patent: February 2, 2010
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: John Gavin MacDonald, Jeffrey E. Fish, Sharon Linda Greene, Jaeho Kim
  • Patent number: 7651989
    Abstract: There is provided a color change composition that remains stable in a single phase and that contains an indicator that produces an observable color change after a period of time to show that sufficient cleaning has been done or to indicate the thoroughness of the cleaning. This use indicating color change is useful for, for example, in soap for teaching children to wash their hands for a sufficient period of time. This composition may be added to many different base materials to indicate time of use or as a way to introduce enjoyment to the activity.
    Type: Grant
    Filed: August 29, 2003
    Date of Patent: January 26, 2010
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: John Gavin MacDonald, Yanbin Huang, Kaiyuan Yang, Jaeho Kim, Ning Wei