Patents by Inventor Kwang Seon Hwang

Kwang Seon Hwang 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: 10876529
    Abstract: The present invention relates to a centrifugal suction-type hybrid vane fluid machine and, more particularly, to a centrifugal suction-type hybrid vane fluid machine wherein a cam ring, which rotates inside a compressor, has a plurality of final intake openings formed through the same from the inner peripheral edge to the outer peripheral edge thereof, thereby facilitating inflow of a fluid during rotation; an oil passage is formed therein so as to seal inner constituent elements and to apply a backpressure of vanes, thereby preventing leakage of the fluid and reducing friction; the same number of initial fluid discharge openings are formed as that of the vane or fluid chambers, thereby improving the efficiency of the compressor; and the cam ring is installed eccentrically so as to increase the rotational contact force, thereby improving the efficiency of the compressor while having all advantages of conventional compressors.
    Type: Grant
    Filed: February 20, 2017
    Date of Patent: December 29, 2020
    Inventor: Kwang-Seon Hwang
  • Publication number: 20190063435
    Abstract: The present invention relates to a centrifugal suction-type hybrid vane fluid machine and, more particularly, to a centrifugal suction-type hybrid vane fluid machine wherein a cam ring, which rotates inside a compressor, has a plurality of final intake openings formed through the same from the inner peripheral edge to the outer peripheral edge thereof, thereby facilitating inflow of a fluid during rotation; an oil passage is formed therein so as to seal inner constituent elements and to apply a backpressure of vanes, thereby preventing leakage of the fluid and reducing friction; the same number of initial fluid discharge openings are formed as that of the vane or fluid chambers, thereby improving the efficiency of the compressor; and the cam ring is installed eccentrically so as to increase the rotational contact force, thereby improving the efficiency of the compressor while having all advantages of conventional compressors.
    Type: Application
    Filed: February 20, 2017
    Publication date: February 28, 2019
    Inventor: Kwang-Seon HWANG
  • Publication number: 20100038361
    Abstract: A disposable cup which may be used as a packing material and a manufacturing method of the same are disclosed, in which a disposable cup includes an outer cup made of a relatively thick material like a paper used for manufacturing a common paper cup and having a circular or oval shaped press part at one side or both sides of the same and being used as a packing material keeping a flat shape at usual time, and a cylindrical inner cup which has a waterproof function and is formed in an envelope shape made of a PVC film material which is non-harmful to a human body, so that the disposable cup can be used as a packing material containing a certain stuff such as a mixed coffee bag, a red tea bag (and/or straw) or something in an inner side of the inner cup.
    Type: Application
    Filed: February 11, 2008
    Publication date: February 18, 2010
    Inventor: Kwang Seon Hwang