Oppositely Pitched Element Sections Patents (Class 366/327.4)
  • Apparatus and methods for industrial-scale production of metal matrix nanocomposites
    Patent number: 8865057
    Abstract: Apparatus and methods for industrial-scale production of metal matrix nanocomposites (MMNCs) are provided. The apparatus and methods can be used for the batch production of an MMNC in a volume of molten metal housed within the cavity of a production chamber. Within the volume of molten metal, a flow is created which continuously carries agglomerates of nanoparticles, which have been introduced into the molten metal, through a cavitation zone formed in a cavitation cell housed within the production chamber.
    Type: Grant
    Filed: February 6, 2012
    Date of Patent: October 21, 2014
    Assignee: Wisconsin Alumni Research Foundation
    Inventors: Xiaochun Li, Noe Gaudencio Alba-Baena, Daniel Earl Hoefert, David Weiss, Woo-hyun Cho, Ben Peter Slater, Hongseok Choi
  • Apparatus and method for forming hydrated lime
    Patent number: 8673226
    Abstract: An apparatus and method for hydrating lime in a horizontally disposed vessel where adjacent oppositely rotating shafts have first sets of spaced blades extending coaxially with an axis of each shaft and an adjacent second set of blades extending to an angle to the longitudinal axis, the blades directing a mixture of quicklime and water upwardly into a space between the shafts and towards the cover, while forming hydrated lime.
    Type: Grant
    Filed: May 6, 2011
    Date of Patent: March 18, 2014
    Assignee: Carmeuse Lime, Inc.
    Inventor: William H. Schoof
  • Continuous preparation of heat-vulcanizable silicone compositions
    Patent number: 6913380
    Abstract: High levels of treated fumed silica, processing fluid and high molecular weight silicone polymer are continuously compounded into a homogeneous silica filled heat-vulcanizable silicone composition by forming a premix in a continuous annular layer mixer and continuously discharging the premix into a compounding apparatus for compounding to form the filled heat-vulcanizable silicone composition.
    Type: Grant
    Filed: March 28, 2002
    Date of Patent: July 5, 2005
    Assignee: General Electric Company
    Inventors: Jodi Boffard, Navjot Singh, Alan L. Tate, Robert Dean, Devesh Mathur
  • Dual direction mixing impeller and method
    Patent number: 6796707
    Abstract: A two bladed dual direction impeller includes blades that each have an inner blade portion that forces material in a first direction and a second blade portion that forces material in a second direction opposite to the first direction. The first and second blade portions are radially spaced from each other by a connector element. Either one or both of the blade portions may be twisted.
    Type: Grant
    Filed: February 26, 2002
    Date of Patent: September 28, 2004
    Assignee: SPX Corporation
    Inventors: Bernd Gigas, Richard Howk
  • Continuous preparation of heat-vulcanizable silicone compositions
    Patent number: 6414054
    Abstract: High levels of treated fumed silica, processing fluid and high molecular weight silicone polymer are continuously compounded into a homogeneous silica filled heat-vulcanizable silicone composition by forming a premix in a continuous annular layer mixer and continuously discharging the premix into a compounding apparatus for compounding to form the filled heat-vulcanizable silicone composition.
    Type: Grant
    Filed: December 21, 1999
    Date of Patent: July 2, 2002
    Assignee: General Electric Company
    Inventors: Jodi Boffard, Navjot Singh, Alan L. Tate, Robert Dean