公开(公告)号：US10933354B2

公开(公告)日：2021-03-02

申请号：US16127162

申请日：2018-09-10

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Myoung-Woon Moon ,  Kwang Ryeol Lee ,  Seohyun Cho ,  Young A Lee ,  O Chang Kwon

IPC: B01D29/25 ,  B01D43/00 ,  B01D17/04 ,  E02B15/10 ,  B01D36/00

Abstract: The present disclosure relates to a rotating type foreign substance collection equipment, and according to an embodiment of the present disclosure, there is an effect in separating and collecting foreign substances such as oil from foreign substance-fluid mixtures at high speeds by the separation membrane that traps foreign substances such as oil that float in water while allowing sea water or river water to pass through and be discharged.

公开(公告)号：US11614097B2

公开(公告)日：2023-03-28

申请号：US17696868

申请日：2022-03-17

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Seong-Jin Kim ,  Myoung-Woon Moon ,  Young-jin Lee ,  Seo-Hyun Cho

IPC: F04D29/70 ,  F04D29/18

Abstract: The present disclosure is directed to providing impeller type oil transportation device including; a transport unit provided such that a mixed fluid including an oil is fed on one side; and an impeller provided in the transport unit, the impeller including a core connected to a rotation axis, and wings extending radially from the core and having hydrophilic teeth on an outer surface to transport the mixed fluid including the oil to the other side of the transport unit by rotation, wherein the impeller is provided in the transport unit such that parts of the wings are exposed above a surface of the mixed fluid, to separate the oil adhered to the teeth while the mixed fluid is fed into a space between the adjacent teeth by capillary flow when the wings exposed above the surface of the mixed fluid move on to the mixed fluid by the rotation.

公开(公告)号：US10774491B2

公开(公告)日：2020-09-15

申请号：US15854931

申请日：2017-12-27

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Heon Ju Lee ,  Myoung-Woon Moon ,  Do Hyun Kim ,  Tae Jun Ko ,  O Chang Kwon

IPC: E02B15/04 ,  B01D69/02 ,  C02F1/40 ,  E02B15/10 ,  B01D63/08 ,  E02B15/06 ,  C02F1/44 ,  C02F103/00 ,  C02F103/08

Abstract: An oil fence including an oil filtration membrane includes: a floating member floating on a surface of water; and an oil filtration membrane connected to the floating member, allowing the water to pass therethrough, and rapidly collecting materials such as oil or a hazardous and noxious substance included in the water.

公开(公告)号：US11670273B2

公开(公告)日：2023-06-06

申请号：US16937582

申请日：2020-07-24

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Myoung-Woon Moon ,  O-Chang Kwon

IPC: G10K11/162 ,  E04B1/86

CPC classification number: G10K11/162 ,  E04B1/86

Abstract: A sound absorption device and a method of manufacturing the same are provided. The sound absorption device includes a sound absorbing panel including first elements, second elements, third elements, and fourth elements arranged in different directions, wherein a cross-section of at least one of the first through fourth elements has a distorted circular shape, a distorted polygonal shape, or a distorted elliptical shape.

公开(公告)号：US11624166B2

公开(公告)日：2023-04-11

申请号：US17364885

申请日：2021-07-01

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Seong-Jin Kim ,  Myoung-Woon Moon ,  Seo-Hyun Cho ,  Young-A Lee ,  Chang-Hwi Sim

IPC: E02B15/10 ,  C02F1/40 ,  E02B15/04 ,  B01D17/04 ,  B01D17/02 ,  C02F103/00 ,  C02F101/32

Abstract: Provided is a toothed drum type oil recovery device, which includes: a recovery drum having a center coupled to a rotary shaft and having a plurality of tooth units formed around an outer circumference thereof, wherein one side of the recovery drum is disposed in the water to which oil is spilled so that the oil is recovered by the tooth unit at one side of the recovery drum according to the rotation; and a separation unit containing an oil separating liquid and disposed at the other side of the recovery drum, wherein when the tooth unit moves onto the oil separating liquid at the other side of the recovery drum according to the rotation of the recovery drum, the oil separating liquid is introduced into a space between the tooth units adjacent to each other by means of a capillary action to separate the oil from the tooth unit.

公开(公告)号：US11551655B2

公开(公告)日：2023-01-10

申请号：US16710374

申请日：2019-12-11

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Myoung-Woon Moon ,  O Chang Kwon ,  Young A Lee

IPC: G10K11/168 ,  B32B5/12 ,  B32B7/02

Abstract: A sound absorption structure and a method of manufacturing the same are provided. The sound absorption structure includes a first sound absorption layer comprising first elements of which longitudinal directions are misaligned in a thickness direction of the sound absorption structure, the first sound absorption layer having a first internal filling density and absorbing sound waves of a first reactance frequency; and a second sound absorption layer disposed on the first sound absorption layer, having a second internal filling density different from the first internal filling density, and absorbing sound waves of a second reactance frequency different from the first reactance frequency.

公开(公告)号：US20220346471A1

公开(公告)日：2022-11-03

申请号：US17730863

申请日：2022-04-27

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Myoung-Woon Moon ,  Sang-jin Park ,  YOUNG A LEE ,  Hyseung Cho ,  Cho-hee Lee ,  Sunmi Yoon

IPC: A41D13/11

Abstract: The present disclosure relates to an anti-droplet mask filter and an anti-droplet mask comprising the same, and more particularly, to a hydrophobic filter having ridges and an anti-droplet mask comprising the same. The present disclosure is directed to providing a mask filter with improved water repellency performance for effectively preventing the spread of acute respiratory syndrome virus infections.
The super water-repellent anti-droplet nonwoven filter of the present disclosure shows superhydrophobicity with the surface contact angle of 160° or more due to the ridges that form a nanopatterned structure on the surface of hydrophobic fibers and the surface of bonding portions, thereby preventing the adsorption of droplets onto the surface of the filter. Additionally, the super water-repellent anti-droplet nonwoven filter of the present disclosure can capture ultrafine particles such as aerosols due to the nanopatterned structure on the surface of the super water-repellent anti-droplet nonwoven filter.

公开(公告)号：US10400409B2

公开(公告)日：2019-09-03

申请号：US15854860

申请日：2017-12-27

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Heon Ju Lee ,  Myoung-Woon Moon ,  O Chang Kwon ,  Do Hyun Kim ,  Tae Jun Ko ,  Ho-Young Kim ,  Hyungmin Park ,  Kyu Hwan Oh

IPC: E02B15/04 ,  C02F1/40 ,  B01D39/16 ,  E02B15/10 ,  E02B15/08 ,  C02F103/00 ,  C02F103/08

Abstract: An oil-collecting apparatus includes: a body including an inlet through which a liquid is introduced, a first outlet through which purified water generated from the liquid introduced through the inlet is discharged, and a second outlet through which materials collected from the liquid are discharged; and a filter arranged at the first outlet of the body and generating the purified water by collecting the materials included in the liquid by allowing the liquid introduced through the inlet to pass therethrough.