Patents by Inventor Chulwoo Rhee

Chulwoo Rhee 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).

  • Automated recirculation system for large particle size analysis
    Patent number: 8262279
    Abstract: The present invention relates to a wet-type recirculation system for particle size analysis of sample including coarse particles (hundreds to thousands ?m). According to the wet-type recirculation system of the present invention, the mixture liquid is recirculated using not a single recirculation line but two recirculation lines between the mixer and the particle size analyzer and the recirculation lines are connected with the mixer at the upper inputting part side of the mixer to discharge the mixture liquid. Further, the rotatable baffle is attached to the inside of the mixer to generate vortex in a horizontal direction as well as a vertical direction within the reservoir of the mixer and the baffle is rotated by a pressure of the mixture liquid discharged from the two recirculation lines to form vortex.
    Type: Grant
    Filed: May 7, 2008
    Date of Patent: September 11, 2012
    Assignee: Korea Institute of Geoscience and Mineral Resouces
    Inventors: Chulwoo Rhee, Jaehwa Jin, Minjun Kim, Yikyun Kwon
  • Automated recirculation system for large particle size analysis
    Publication number: 20080285377
    Abstract: The present invention relates to a wet-type recirculation system for particle size analysis of sample including coarse particles (hundreds to thousands ?m). According to the wet-type recirculation system of the present invention, the mixture liquid is recirculated using not a single recirculation line but two recirculation lines between the mixer and the particle size analyzer and the recirculation lines are connected with the mixer at the upper inputting part side of the mixer to discharge the mixture liquid. Further, the rotatable baffle is attached to the inside of the mixer to generate vortex in a horizontal direction as well as a vertical direction within the reservoir of the mixer and the baffle is rotated by a pressure of the mixture liquid discharged from the two recirculation lines to form vortex.
    Type: Application
    Filed: May 7, 2008
    Publication date: November 20, 2008
    Inventors: Chulwoo Rhee, Jaehwa Jin, Minjun Kim, Yikyun Kwon