Patents by Inventor Stephen Ashton

Stephen Ashton 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: 10145067
    Abstract: Methods of improving dewatering efficiency, increasing sheet wet web strength, increasing sheet wet strength, and enhancing filler retention in a papermaking process are disclosed. The methods improve the efficiency of drainage aids, wet web strength aids, and/or wet strength aids by coating at least some of the filler particles with a material that prevents the filler materials form adhering to a those additives.
    Type: Grant
    Filed: September 21, 2016
    Date of Patent: December 4, 2018
    Assignee: ECOLAB USA INC.
    Inventors: Yulin Zhao, Jun Li, Qing Long Rao, Stephen Ashton, Weiguo Cheng, Aleksandar Todorovic, Alan Smith
  • Publication number: 20170009399
    Abstract: Methods of improving dewatering efficiency, increasing sheet wet web strength, increasing sheet wet strength, and enhancing filler retention in a papermaking process are disclosed. The methods improve the efficiency of drainage aids, wet web strength aids, and/or wet strength aids by coating at least some of the filler particles with a material that prevents the filler materials form adhering to a those additives.
    Type: Application
    Filed: September 21, 2016
    Publication date: January 12, 2017
    Applicant: NALCO Company
    Inventors: Yulin Zhao, Jun Li, Qing Long Rao, Stephen Ashton, Weiguo Cheng, Aleksandar Todorovic, Alan Smith
  • Patent number: 9487916
    Abstract: The invention provides a method of improving dewatering efficiency, increasing sheet wet web strength, increasing sheet wet strength and enhancing filler retention in a papermaking process The method improves the efficiency of drainage aids or wet web strength aids or wet strength aid by coating at least some of the filler particles with a material that prevents the filler materials form adhering to a those additives. The drainage additive or wet web strength additive or wet strength aid holds the cellulose fibers together tightly and is not wasted on the filler particles.
    Type: Grant
    Filed: June 17, 2013
    Date of Patent: November 8, 2016
    Assignee: NALCO Company
    Inventors: Yulin Zhao, Jun Li, Qing Long Rao, Stephen Ashton, Weiguo Cheng, Aleksandar Todorovic, Alan Smith
  • Patent number: 8206034
    Abstract: An opening mechanism for use with a fluid filled collapsible container is disclosed. The mechanism comprises an outlet spout adapted to be joined to a wall of the collapsible container, a perforator for opening the collapsible container through the outlet spout and a driver having a passage therethrough. The driver is received within the outlet spout and screw threadedly engaged therewith for advancement by relative rotation thereof to drive the perforator though the outlet spout to thereby open the collapsible container and permit fluid to be dispensed through the passage. A circumferential flexible seal is provided within the outlet spout on one of the driver and the outlet spout to engage with the other of the driver and the outlet spout to reduce leakage of fluid between the outlet spout and the driver as the collapsible container is opened.
    Type: Grant
    Filed: August 1, 2008
    Date of Patent: June 26, 2012
    Assignee: Entapack Pty Ltd
    Inventors: Stephen Ashton Keen, Vincent Papaluca
  • Publication number: 20090046958
    Abstract: An opening mechanism for use with a fluid filled collapsible container is disclosed. The mechanism comprises an outlet spout adapted to be joined to a wall of the collapsible container, a perforator for opening the collapsible container through the outlet spout and a driver having a passage therethrough. The driver is received within the outlet spout and screw threadedly engaged therewith for advancement by relative rotation thereof to drive the perforator though the outlet spout to thereby open the collapsible container and permit fluid to be dispensed through the passage. A circumferential flexible seal is provided within the outlet spout on one of the driver and the outlet spout to engage with the other of the driver and the outlet spout to reduce leakage of fluid between the outlet spout and the driver as the collapsible container is opened.
    Type: Application
    Filed: August 1, 2008
    Publication date: February 19, 2009
    Applicant: Entapack Pty. Ltd.
    Inventors: Stephen Ashton Keen, Vincent Papaluca
  • Publication number: 20060093810
    Abstract: A laminated film (10) for application to a substrate (30) comprises at least a base layer (12), formed from an organic polymer, and an adhesive layer (16). Gamma or electron beam irradiation is applied at least to the base layer (12) to modify the polymer structure thereof, thereby strengthening the laminated film (10) and the substrate (30) to which it is applied. Glass substrates to which the laminated product is applied demonstrate improved fragment retention in the event of an impact.
    Type: Application
    Filed: May 29, 2003
    Publication date: May 4, 2006
    Inventors: Gary Blake, Stephen Ashton