Patents by Inventor Hyo-Sook Cha

Hyo-Sook Cha 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: 9144776
    Abstract: Provided are an agitator and an agitating hook provided therein. The agitator includes a rotary shaft rotatably installed in a reactor, rotor blades installed at an outer circumference of the rotary shaft and rotated with the rotary shaft to agitate a material therein, and an agitating hook constituted by a pair of members spaced apart from each other at an inner wall of the reactor and through which the rotor blades pass. Here, a gap between the agitating hook is larger at an outlet port through which the rotor blade leaves than at an inlet port through which the rotor blade enters. Since a pressure is uniformly applied from the inlet port through which the rotor blade enters to the outlet port through which the rotor blade leaves, a torsional moment applied to the agitating hook is minimized. Therefore, it is possible to improve durability of the agitating hook and increase reliability of products.
    Type: Grant
    Filed: January 7, 2015
    Date of Patent: September 29, 2015
    Assignee: LG CHEM, LTD.
    Inventors: Yeon Seok Choo, Hyo Sook Cha, Ye Hoon Im, Byung Woo Choi, Jin Hyun Bae
  • Publication number: 20150131407
    Abstract: Provided are an agitator and an agitating hook provided therein. The agitator includes a rotary shaft rotatably installed in a reactor, rotor blades installed at an outer circumference of the rotary shaft and rotated with the rotary shaft to agitate a material therein, and an agitating hook constituted by a pair of members spaced apart from each other at an inner wall of the reactor and through which the rotor blades pass. Here, a gap between the agitating hook is larger at an outlet port through which the rotor blade leaves than at an inlet port through which the rotor blade enters. Since a pressure is uniformly applied from the inlet port through which the rotor blade enters to the outlet port through which the rotor blade leaves, a torsional moment applied to the agitating hook is minimized. Therefore, it is possible to improve durability of the agitating hook and increase reliability of products.
    Type: Application
    Filed: January 7, 2015
    Publication date: May 14, 2015
    Inventors: Yeon Seok CHOO, Hyo Sook Cha, Ye Hoon Im, Byung Woo Choi, Jin Hyun Bae
  • Patent number: 8961001
    Abstract: Provided are an agitator and an agitating hook provided therein. The agitator includes a rotary shaft rotatably installed in a reactor, rotor blades installed at an outer circumference of the rotary shaft and rotated with the rotary shaft to agitate a material therein, and an agitating hook constituted by a pair of members spaced apart from each other at an inner wall of the reactor and through which the rotor blades pass. Here, a gap between the agitating hook is larger at an outlet port through which the rotor blade leaves than at an inlet port through which the rotor blade enters. Since a pressure is uniformly applied from the inlet port through which the rotor blade enters to the outlet port through which the rotor blade leaves, a torsional moment applied to the agitating hook is minimized. Therefore, it is possible to improve durability of the agitating hook and increase reliability of products.
    Type: Grant
    Filed: October 29, 2010
    Date of Patent: February 24, 2015
    Assignee: LG Chem, Ltd.
    Inventors: Yeon Seok Choo, Hyo Sook Cha, Ye Hoon Im, Byung Woo Choi, Jin Hyun Bae
  • Patent number: 8398293
    Abstract: An apparatus for mixing viscous material includes a chamber having a cylindrical sidewall and a bottom and receiving viscous material to be mixed; a cylindrical draft tube fixed at an inside center of the chamber to be spaced from the bottom and the sidewall and forming a space between the draft tube and the sidewall to allow passage of the viscous material, and including a heat medium passage therein; a carrying impeller installed in the draft tube and driven by a motor to transfer the viscous material above or below the draft tube and suck the viscous material in the space into the draft tube; and a sweeping impeller installed in the space and rotated in a circumferential direction by a motor to apply a pressure to the viscous material so that the viscous material in the space is not adhered to the draft tube and the sidewall.
    Type: Grant
    Filed: January 12, 2007
    Date of Patent: March 19, 2013
    Assignee: LG Chem, Ltd.
    Inventors: In-Seon Kim, Hyun-Seob Song, Sang-Phil Han, Ji-Hyun Lee, Hyo-Sook Cha
  • Publication number: 20120327740
    Abstract: Provided are an agitator and an agitating hook provided therein. The agitator includes a rotary shaft rotatably installed in a reactor, rotor blades installed at an outer circumference of the rotary shaft and rotated with the rotary shaft to agitate a material therein, and an agitating hook constituted by a pair of members spaced apart from each other at an inner wall of the reactor and through which the rotor blades pass. Here, a gap between the agitating hook is larger at an outlet port through which the rotor blade leaves than at an inlet port through which the rotor blade enters. Since a pressure is uniformly applied from the inlet port through which the rotor blade enters to the outlet port through which the rotor blade leaves, a torsional moment applied to the agitating hook is minimized. Therefore, it is possible to improve durability of the agitating hook and increase reliability of products.
    Type: Application
    Filed: October 29, 2010
    Publication date: December 27, 2012
    Applicant: LG CHEM, LTD
    Inventors: Yeon Seok Choo, Hyo Sook Cha, Ye Hoon Im, Byung Woo Choi, Jin Hyun Bae
  • Publication number: 20070159919
    Abstract: An apparatus for mixing viscous material includes a chamber having a cylindrical sidewall and a bottom and receiving viscous material to be mixed; a cylindrical draft tube fixed at an inside center of the chamber to be spaced from the bottom and the sidewall and forming a space between the draft tube and the sidewall to allow passage of the viscous material, and including a heat medium passage therein; a carrying impeller installed in the draft tube and driven by a motor to transfer the viscous material above or below the draft tube and suck the viscous material in the space into the draft tube; and a sweeping impeller installed in the space and rotated in a circumferential direction by a motor to apply a pressure to the viscous material so that the viscous material in the space is not adhered to the draft tube and the sidewall.
    Type: Application
    Filed: January 12, 2007
    Publication date: July 12, 2007
    Inventors: In-Seon Kim, Hyun-Seob Song, Sang-Phil Han, Ji-Hyun Lee, Hyo-Sook Cha