Patents by Inventor Dany Drolet

Dany Drolet 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).

  • Thixotropic injector with improved annular trap
    Patent number: 8978735
    Abstract: By blocking an angular extent of an annular skimming trap used for semi-solid injection, a notable reduction in lenticular defects and porosity are observed. The blocking can be performed by a ring having dimensions to completely occlude a prior art annular skimming trap throughout the angular extent, and providing complete and/or partial flow across the ring throughout the rest of the angular extent. Preferably an outlet to the ring trap includes a chamfered edge and/or a deflector for encouraging flow of the contaminated semi-solid material into the trap.
    Type: Grant
    Filed: January 11, 2013
    Date of Patent: March 17, 2015
    Assignee: National Research Council of Canada
    Inventors: Chang-Qing Zheng, Dany Drolet
  • Thixotropic injector with improved annular trap
    Patent number: 8376026
    Abstract: By blocking an angular extent of an annular skimming trap used for semi-solid injection, a notable reduction in lenticular defects and porosity are observed. The blocking can be performed by a ring having dimensions to completely occlude a prior art annular skimming trap throughout the angular extent, and providing complete and/or partial flow across the ring throughout the rest of the angular extent. Preferably an outlet to the ring trap includes a chamfered edge and/or a deflector for encouraging flow of the contaminated semi-solid material into the trap.
    Type: Grant
    Filed: May 25, 2010
    Date of Patent: February 19, 2013
    Assignee: National Research Council of Canada
    Inventors: Chang-Qing Zheng, Dany Drolet
  • Thixotropic Injector with Improved Annular Trap
    Publication number: 20110186260
    Abstract: By blocking an angular extent of an annular skimming trap used for semi-solid injection, a notable reduction in lenticular defects and porosity are observed. The blocking can be performed by a ring having dimensions to completely occlude a prior art annular skimming trap throughout the angular extent, and providing complete and/or partial flow across the ring throughout the rest of the angular extent. Preferably an outlet to the ring trap includes a chamfered edge and/or a deflector for encouraging flow of the contaminated semi-solid material into the trap.
    Type: Application
    Filed: May 25, 2010
    Publication date: August 4, 2011
    Inventors: Chang-Qing Zheng, Dany Drolet