Patents by Inventor Dayalan Romesh Gunasegaram

Dayalan Romesh Gunasegaram 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: 11541412
    Abstract: The present disclosure relates to catalytic static mixers comprising catalytic material. The static mixers can be configured for use with continuous flow chemical reactors, for example tubular continuous flow chemical reactors for heterogeneous catalysis reactions. This disclosure also relates to processes for preparing static mixers. This disclosure also relates to continuous flow chemical reactors comprising the static mixers, systems comprising the continuous flow chemical reactors, processes for synthesising products using the continuous flow reactors, and methods for screening catalytic materials using the static mixers.
    Type: Grant
    Filed: December 21, 2016
    Date of Patent: January 3, 2023
    Assignee: Commonwealth Scientific and Industrial Research Organisation
    Inventors: William Henry, John Tsanaktsidis, Christian Hornung, Andrew Joseph Urban, Darren Fraser, Dayalan Romesh Gunasegaram, Michael David Horne, Jean-Pierre Veder, Theo Rodopoulos
  • Publication number: 20220258110
    Abstract: The present disclosure relates to catalytic static mixers comprising catalytic material. The static mixers can be configured for use with continuous flow chemical reactors, for example tubular continuous flow chemical reactors for heterogeneous catalysis reactions. This disclosure also relates to processes for preparing static mixers. This disclosure also relates to continuous flow chemical reactors comprising the static mixers, systems comprising the continuous flow chemical reactors, processes for synthesising products using the continuous flow reactors, and methods for screening catalytic materials using the static mixers.
    Type: Application
    Filed: February 28, 2022
    Publication date: August 18, 2022
    Inventors: William HENRY, John TSANAKTSIDIS, Christian HORNUNG, Andrew Joseph URBAN, Darren FRASER, Dayalan Romesh GUNASEGARAM, Michael David HORNE, Jean-Pierre VEDER, Theo RODOPOULOS
  • Publication number: 20210253452
    Abstract: The present disclosure relates to an electrochemical flow reactor, such as a continuous flow electrochemical tubular reactor. This disclosure also relates to processes, systems, and methods comprising an electrochemical flow reactor. An electrochemical flow cell can comprise a reaction chamber, a first static mixer electrode, a second counter electrode, and a separator disposed between the first and second electrodes.
    Type: Application
    Filed: August 7, 2019
    Publication date: August 19, 2021
    Inventors: Michael David HORNE, Bita BAYATSARMADI, Theo RODOPOULOS, John TSANAKTSIDIS, Dayalan Romesh GUNASEGARAM, Christian HORNUNG, Darren FRASER, Dylan MARLEY, Andrew Joseph URBAN
  • Publication number: 20190388859
    Abstract: The present disclosure relates to catalytic static mixers comprising catalytic material. The static mixers can be configured for use with continuous flow chemical reactors, for example tubular continuous flow chemical reactors for heterogeneous catalysis reactions. This disclosure also relates to processes for preparing static mixers. This disclosure also relates to continuous flow chemical reactors comprising the static mixers, systems comprising the continuous flow chemical reactors, processes for synthesising products using the continuous flow reactors, and methods for screening catalytic materials using the static mixers.
    Type: Application
    Filed: December 21, 2016
    Publication date: December 26, 2019
    Applicant: Commonwealth Scientific and Industrial Research Organisation
    Inventors: William HENRY, John TSANAKTSIDIS, Christian HORNUNG, Andrew Joseph URBAN, Darren FRASER, Dayalan Romesh GUNASEGARAM, Michael David HORNE, Jean-Pierre VEDER, Theo RODOPOULOS
  • Patent number: 8409374
    Abstract: A method for the heat treatment of a casting produced by high pressure die casting, that may exhibit blister forming porosity in the as-cast condition, of an age-hardenable aluminum alloy, includes solution treating the casting by heating the casting to and within a temperature range enabling solute elements to be taken into solid solution. The casting then is cooled to terminate the solution treatment by quenching the casting to a temperature below 100° C. The cooled casting is held in a temperature range enabling natural and/or artificial ageing. The solution treatment is conducted to achieve a level of solute element solution enabling age-hardening without expansion of pores in the casting causing unacceptable blistering of the casting.
    Type: Grant
    Filed: December 19, 2005
    Date of Patent: April 2, 2013
    Assignee: Commonwealth Scientific and Industrial Research Organisation
    Inventors: Roger Neil Lumley, Robert Geoffrey O'Donnell, Dayalan Romesh Gunasegaram, Michel Givord
  • Publication number: 20110164945
    Abstract: The invention relates to blind rivets and to methods of joining therewith. The method of the invention is suitable for joining two or more workpieces with a blind rivet. The method includes the first step of positioning a blind rivet at a point of overlap of two or more workpieces, the blind rivet including a rivet body and a mandrel. The next step involves rotating the mandrel about a longitudinal axis thereof and contacting the mandrel with the overlapping workpieces, wherein the mandrel is rotated at a speed to cause plasticization of the overlapping workpieces. The method then involves causing the mandrel to penetrate through the plasticized overlapping workpieces and form an aperture therethrough. A further step of the method involves capturing a portion of the overlapping workpieces that is displaced upon the penetration of the mandrel and securing the rivet body within the aperture to join the overlapping workpieces. The invention also includes a workpiece penetrating and joining blind rivet.
    Type: Application
    Filed: May 11, 2009
    Publication date: July 7, 2011
    Applicant: Co-Operative Research Centre for Advanced Automotive Technology Ltd.
    Inventors: Srinivasarao Lathabai, Vinay Kumar Tyagi, Gersende Marie Delphine Cantin, Dayalan Romesh Gunasegaram, Ian Curtis Thomas, Shane David Christian, David James Bell Ritchie, Trevor Neil Kearney
  • Publication number: 20110100515
    Abstract: An aluminium based alloy has a weight percentage composition of from 5 to 15% silicon, 0 to 0.25% magnesium, 0 to 0.25% titanium, 0.2 to 0.65% manganese, 0.1 to 0.6% iron, 1 to 4% copper, 0 to 3% zinc, less than 0.01% in total of silicon modifiers (with less than 0.007% strontium), less than 0.05% tin, less than 0.2% in total of other transition or rare earth metals (with less than 0.05% chromium), less than 0.5% in total other elements, and a balance of aluminium. The limits for iron and manganese are constrained such that the amount of iron present in the alloy is 0.4 to 1.6 times the manganese content and the alloy has a sludge factor (SF), calculated as SF=(1×wt % Fe)+(2×wt % Mn), of from 0.8 to 1.6. A casting made from the alloy has enhanced fracture resistance relative to casting of the same product made of a conventional HPDC alloy when compared in the as cast or same heat treated state.
    Type: Application
    Filed: April 30, 2009
    Publication date: May 5, 2011
    Inventors: Roger Neil Lumley, Dayalan Romesh Gunasegaram, Maya Gershenzon, Andrew Colin Yob
  • Publication number: 20090038720
    Abstract: A method for the heat treatment of a casting produced by high pressure die casting, that may exhibit blister forming porosity in the as-cast condition, of an age-hardenable aluminium alloy, includes solution treating the casting by heating the casting to and within a temperature range enabling solute elements to be taken into solid solution. The casting then is cooled to terminate the solution treatment by quenching the casting to a temperature below 100° C. The cooled casting is held in a temperature range enabling natural and/or artificial ageing. The solution treatment is conducted to achieve a level of solute element solution enabling age-hardening without expansion of pores in the casting causing unacceptable blistering of the casting.
    Type: Application
    Filed: December 19, 2005
    Publication date: February 12, 2009
    Inventors: Roger Neil Lumley, Robert Geoffrey O'Donnell, Dayalan Romesh Gunasegaram, Michel Givord