Patents by Inventor Chang-Sun Yoon

Chang-Sun Yoon 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: 12007169
    Abstract: Provided is an apparatus for extracting water from a condenser to the outside for water quality analysis. The apparatus includes an insertion pipe inserted into a condenser, a screw thrust portion including a rotating shaft inserted into the insertion pipe, a screw coupled to one end of the rotating shaft, and a screw thrust portion comprising a power providing portion configured to transmit power to the rotating shaft, and an exhaust pipe provided in the insertion pipe to introduce the water to flow to the outside of the condenser when the water contained in the condenser flows toward a rear side of the screw according to a rotation of the screw.
    Type: Grant
    Filed: December 11, 2020
    Date of Patent: June 11, 2024
    Assignee: KEPCO ENGINEERING & CONSTRUCTION COMPANY, INC.
    Inventor: Chang Sun Yoon
  • Patent number: 11713831
    Abstract: A cavitation reduction valve structure using a dispersion valve includes: a main valve including a front end portion to which a fluid is introduced, a rear end portion from which a fluid is discharged, and a body portion which is arranged between the front end portion and the rear end portion; a first actuator which is connected to the body portion and opens and closes the body portion and controls a flow rate passing through the body portion; a first dispersion pipe branching from the front end portion; a buffer portion which is connected to the first dispersion pipe; a second dispersion pipe connecting the buffer portion and the body portion to each other; a bypass pipe connecting the buffer portion and the rear end portion to each other; and a dispersion valve provided on the bypass pipe.
    Type: Grant
    Filed: May 26, 2022
    Date of Patent: August 1, 2023
    Assignee: KEPCO ENGINEERING & CONSTRUCTION COMPANY, INC.
    Inventor: Chang Sun Yoon
  • Publication number: 20230112119
    Abstract: A level indicating device for a tank includes: a differential pressure type level gauge configured to measure a level of a fluid in a tank on the basis of a pressure according to the level of the fluid in the tank; and a level indicator configured to indicate the level of the fluid by moving in a vertical direction according to a differential pressure signal measured by the differential pressure type level gauge.
    Type: Application
    Filed: September 30, 2021
    Publication date: April 13, 2023
    Inventor: Chang Sun YOON
  • Patent number: 11619698
    Abstract: A power plant controlling method includes: receiving a beacon signal from a location beacon or a device information beacon, wherein the location beacon is mounted in a region of a power plant area requiring monitoring and controlling, the region including an employee circulation path, and the device information beacon is mounted at a device requiring identification; tracking a location of the beacon that transmitted the received beacon signal; and receiving information about devices within a radius set by a user based on the tracked location.
    Type: Grant
    Filed: November 19, 2019
    Date of Patent: April 4, 2023
    Assignee: KEPCO ENGINEERING & CONSTRUCTION COMPANY, INC.
    Inventor: Chang Sun Yoon
  • Publication number: 20220381368
    Abstract: A cavitation reduction valve structure using a dispersion valve includes: a main valve including a front end portion to which a fluid is introduced, a rear end portion from which a fluid is discharged, and a body portion which is arranged between the front end portion and the rear end portion; a first actuator which is connected to the body portion and opens and closes the body portion and controls a flow rate passing through the body portion; a first dispersion pipe branching from the front end portion; a buffer portion which is connected to the first dispersion pipe; a second dispersion pipe connecting the buffer portion and the body portion to each other; a bypass pipe connecting the buffer portion and the rear end portion to each other; and a dispersion valve provided on the bypass pipe.
    Type: Application
    Filed: May 26, 2022
    Publication date: December 1, 2022
    Inventor: Chang Sun YOON
  • Patent number: 11250657
    Abstract: Provided is a power plant operation history device. The power plant operation history device includes: a communication unit configured to detect RFID of a wearable device and communicate with a signal conversion device; and a control unit configured to determine a power plant control authority of a user based on user identification information obtained through the communication unit, transmit an operation permission signal allowing operation of an input device of a power plant control facility control device to the signal conversion device when it is determined that the user's power plant control authority exists, and normally process a user input from the input device through the signal conversion device.
    Type: Grant
    Filed: November 10, 2020
    Date of Patent: February 15, 2022
    Assignee: KEPCO ENGINEERING & CONSTRUCTION COMPANY, INC.
    Inventor: Chang Sun Yoon
  • Publication number: 20210180868
    Abstract: Provided is an apparatus for extracting water from a condenser to the outside for water quality analysis. The apparatus includes an insertion pipe inserted into a condenser, a screw thrust portion including a rotating shaft inserted into the insertion pipe, a screw coupled to one end of the rotating shaft, and a screw thrust portion comprising a power providing portion configured to transmit power to the rotating shaft, and an exhaust pipe provided in the insertion pipe to introduce the water to flow to the outside of the condenser when the water contained in the condenser flows toward a rear side of the screw according to a rotation of the screw.
    Type: Application
    Filed: December 11, 2020
    Publication date: June 17, 2021
    Inventor: Chang Sun YOON
  • Publication number: 20210158643
    Abstract: Provided is a power plant operation history device. The power plant operation history device includes: a communication unit configured to detect RFID of a wearable device and communicate with a signal conversion device; and a control unit configured to determine a power plant control authority of a user based on user identification information obtained through the communication unit, transmit an operation permission signal allowing operation of an input device of a power plant control facility control device to the signal conversion device when it is determined that the user's power plant control authority exists, and normally process a user input from the input device through the signal conversion device.
    Type: Application
    Filed: November 10, 2020
    Publication date: May 27, 2021
    Inventor: Chang Sun YOON
  • Patent number: 10697559
    Abstract: A control valve pneumatic actuator using a transparent casing includes a casing having a cylindrical shape and made of a transparent material to enable an inside of the casing to be observed from outside, a driveshaft penetrating the inside of the casing, a diaphragm fixedly connected to the driveshaft inside the casing and vertically moving in the casing according to a movement of the driveshaft, a ring holder attached to an outer circumferential of the diaphragm and having a groove having a C-shape, a rubber ring inserted into the groove of the ring holder, a control valve connected to a lower portion of the drive shaft extending below the casing, and a yoke arranged below the casing and connecting the casing to the control valve.
    Type: Grant
    Filed: January 16, 2019
    Date of Patent: June 30, 2020
    Assignee: KEPCO ENGINEERING & CONSTRUCTION COMPANY, INC.
    Inventor: Chang Sun Yoon
  • Publication number: 20200191897
    Abstract: A power plant controlling method includes: receiving a beacon signal from a location beacon or a device information beacon, wherein the location beacon is mounted in a region of a power plant area requiring monitoring and controlling, the region including an employee circulation path, and the device information beacon is mounted at a device requiring identification; tracking a location of the beacon that transmitted the received beacon signal; and receiving information about devices within a radius set by a user based on the tracked location.
    Type: Application
    Filed: November 19, 2019
    Publication date: June 18, 2020
    Inventor: Chang Sun YOON
  • Publication number: 20190219189
    Abstract: A control valve pneumatic actuator using a transparent casing includes a casing having a cylindrical shape and made of a transparent material to enable an inside of the casing to be observed from outside, a driveshaft penetrating the inside of the casing, a diaphragm fixedly connected to the driveshaft inside the casing and vertically moving in the casing according to a movement of the driveshaft, a ring holder attached to an outer circumferential of the diaphragm and having a groove having a C-shape, a rubber ring inserted into the groove of the ring holder, a control valve connected to a lower portion of the drive shaft extending below the casing, and a yoke arranged below the casing and connecting the casing to the control valve.
    Type: Application
    Filed: January 16, 2019
    Publication date: July 18, 2019
    Inventor: Chang Sun YOON
  • Patent number: 10346643
    Abstract: A USB security device includes a main body; a connection line connecting the main body to the control system; a first socket into which a USB having a guard is inserted; a second socket into which a USB not having a guard is inserted; and a key switch. The first socket includes a first slide bar having a first connection terminal at a bottom of an end portion thereof; a first connecting rod; a second slide bar having a second connection terminal at a top of an end portion thereof; a second connecting rod; and a crank coupled at opposite ends to the first connecting rod and the second connecting rod and having a crankshaft.
    Type: Grant
    Filed: August 22, 2018
    Date of Patent: July 9, 2019
    Assignee: KEPCO ENGINEERING & CONSTRUCTION COMPANY, INC.
    Inventor: Chang Sun Yoon
  • Patent number: 10324479
    Abstract: A portable plant instrument freezing and bursting prevention device using a non-directional serial connector includes a main body portion, a plurality of heat wire portions, each of the plurality of heat wire portions comprising a male connector having a cylindrical shape, a heat wire having resistance, and a female connector having a cylindrical shape and having a hollow portion with both ends open, which are sequentially coupled to one another, and an end cap inserted into the female connector at an end of the plurality of heat wire portions to short-circuit the female connector, in which the male connector of one of the plurality of heat wire portions is inserted into the female connector of another one of the plurality of heat wire portions, and thus the plurality of heat wire portions are serially connected to one another.
    Type: Grant
    Filed: September 8, 2017
    Date of Patent: June 18, 2019
    Assignee: KEPCO ENGINEERING & CONSTRUCTION COMPANY, INC.
    Inventor: Chang Sun Yoon
  • Patent number: 10234326
    Abstract: Provided is an indication type level indicator including a total reflection prism provided on a float buoyant in the indication type level indicator so that, when laser is irradiated from an upper portion of the float, the laser is scattered by the total reflection prism and thus level legibility is improved. The indication type level indicator includes a chamber filled with a fluid and including a reading portion through which a level of the fluid is measured; the float provided in the chamber and including a material buoyant on the fluid moving vertically in the chamber along with the fluid; the total reflection prism provided on the float and configured to scatter light; and a laser module configured to irradiate laser to the total reflection prism so that the laser irradiated from the laser module is scattered by the total reflection prism to the reading portion.
    Type: Grant
    Filed: September 22, 2017
    Date of Patent: March 19, 2019
    Assignee: KEPCO ENGINEERING & CONSTRUCTION COMPANY, INC.
    Inventors: Hyuk Jin Kwon, Chang Sun Yoon, Mul Kwan Park
  • Publication number: 20190065791
    Abstract: A USB security device includes a main body; a connection line connecting the main body to the control system; a first socket into which a USB having a guard is inserted; a second socket into which a USB not having a guard is inserted; and a key switch. The first socket includes a first slide bar having a first connection terminal at a bottom of an end portion thereof; a first connecting rod; a second slide bar having a second connection terminal at a top of an end portion thereof; a second connecting rod; and a crank coupled at opposite ends to the first connecting rod and the second connecting rod and having a crankshaft.
    Type: Application
    Filed: August 22, 2018
    Publication date: February 28, 2019
    Inventor: Chang Sun YOON
  • Publication number: 20180128669
    Abstract: Provided is an indication type level indicator including a total reflection prism provided on a float buoyant in the indication type level indicator so that, when laser is irradiated from an upper portion of the float, the laser is scattered by the total reflection prism and thus level legibility is improved. The indication type level indicator includes a chamber filled with a fluid and including a reading portion through which a level of the fluid is measured; the float provided in the chamber and including a material buoyant on the fluid moving vertically in the chamber along with the fluid; the total reflection prism provided on the float and configured to scatter light; and a laser module configured to irradiate laser to the total reflection prism so that the laser irradiated from the laser module is scattered by the total reflection prism to the reading portion.
    Type: Application
    Filed: September 22, 2017
    Publication date: May 10, 2018
    Applicant: KEPCO ENGINEERING AND CONSTRUCTION COMPANY, INC.
    Inventors: Hyuk Jin KWON, Chang Sun YOON, Mul Kwan PARK
  • Publication number: 20180113483
    Abstract: A portable plant instrument freezing and bursting prevention device using a non-directional serial connector includes a main body portion, a plurality of heat wire portions, each of the plurality of heat wire portions comprising a male connector having a cylindrical shape, a heat wire having resistance, and a female connector having a cylindrical shape and having a hollow portion with both ends open, which are sequentially coupled to one another, and an end cap inserted into the female connector at an end of the plurality of heat wire portions to short-circuit the female connector, in which the male connector of one of the plurality of heat wire portions is inserted into the female connector of another one of the plurality of heat wire portions, and thus the plurality of heat wire portions are serially connected to one another.
    Type: Application
    Filed: September 8, 2017
    Publication date: April 26, 2018
    Applicant: KEPCO ENGINEERING & CONSTRUCTION COMPANY, INC.
    Inventor: Chang Sun YOON
  • Patent number: 9613383
    Abstract: Power plant field monitoring system and method using a QR code in which, when a user photographs a QR code attached to a monitoring field and transmits the photographed QR code to a route server, the route server transmits matching information that matches the transmitted QR code, from among process values at the monitoring field which are collected by a main control server, to a user terminal.
    Type: Grant
    Filed: December 23, 2015
    Date of Patent: April 4, 2017
    Assignee: KEPCO ENGINEERING & CONSTRUCTION COMPANY, INC.
    Inventor: Chang Sun Yoon
  • Publication number: 20160188945
    Abstract: Power plant field monitoring system and method using a QR code in which, when a user photographs a QR code attached to a monitoring field and transmits the photographed QR code to a route server, the route server transmits matching information that matches the transmitted QR code, from among process values at the monitoring field which are collected by a main control server, to a user terminal.
    Type: Application
    Filed: December 23, 2015
    Publication date: June 30, 2016
    Inventor: Chang Sun YOON
  • Publication number: 20120178549
    Abstract: The present invention relates to a golf putter head, that is, to a golf putter head that strikes a golf ball using the front surface of the head when putting, the golf putter head comprising: a lower guide formed so as to extend from a bottom of a rear surface of the head; an upper guide formed so as to extend from the rear surface of the head at a predetermined distance above the lower guide in order to define a space portion; and a pivoting tail portion, one end of which is inserted into the space portion and pivotably fixed in the space portion by means of a fixing member, wherein a structure for controlling the degree of pivoting is formed in order to control the pivoting angle of the pivoting tail portion, the weight balance of the head is variable according to the pivoting angle of the pivoting tail portion, and the pivoting tail portion is formed in the shape of a bar having a rounded edge at the end thereof that is fixed by the fixing member.
    Type: Application
    Filed: September 13, 2010
    Publication date: July 12, 2012
    Inventor: Chang-Sun Yoon