Patents by Inventor Cheul Cho
Cheul Cho 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).
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Patent number: 11691900Abstract: A trap apparatus of condensate water according to the present invention comprises: a neutralizing part including an inlet through which condensate water is introduced, an internal space for containing a neutralizing agent for neutralizing the introduced condensate water, and a condensate water passage through which the condensate water that was neutralized by the neutralizing agent in the internal space is discharged; a discharge part including a storage space for storing the condensate water which is directly or indirectly introduced through the condensate water passage, an outlet which is open in a circular shape so as to discharge the stored condensate water, and a spherical ball capable of closing the outlet by being seated on the outlet, wherein the ball is spaced from the outlet by buoyancy of the condensate water when the condensate water is contained in the storage space above a critical water level, such that the condensate water can be discharged through the outlet, and the condensate water can be nType: GrantFiled: November 2, 2018Date of Patent: July 4, 2023Assignee: Kyungdong Navien Co., Ltd.Inventors: Jun Kyu Park, Sung Cheul Cho, Sung Jun Ahn
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Patent number: 11236929Abstract: An exhaust duct includes an upper duct being open at opposite ends thereof and a lower duct being open at a tip end thereof. One end of the upper duct is connected, inside an enclosure of a water-heating device, to an exhaust adaptor disposed on the enclosure, and an opposite end of the upper duct communicates with the tip end of the lower duct. The upper duct is connected to the lower duct so as to be slidable along a reference direction in which the lower duct extends from the tip end of the lower duct, and the upper duct is configured to be separated from the exhaust adaptor by sliding along the reference direction.Type: GrantFiled: July 29, 2019Date of Patent: February 1, 2022Assignee: Kyungdong Navien Co., Ltd.Inventors: Jeong Woo Kim, Sung Cheul Cho
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Publication number: 20210199340Abstract: A heat exchanger unit according to the present disclosure includes a combustion chamber in which a flame caused by a combustion reaction is located, a heat exchanger for a condensing boiler, the heat exchanger being located under the combustion chamber and including heat exchange pipes that receive heat generated by the combustion reaction and heat heating-water flowing through the heat exchange pipes and a main case having the heat exchange pipes accommodated in an interior space thereof, and a combustion chamber heat insulation pipe that is disposed adjacent to the combustion chamber and that receives the heating-water and allows the heating-water to flow therethrough to thermally insulate the combustion chamber.Type: ApplicationFiled: December 23, 2020Publication date: July 1, 2021Inventors: Jun Kyu PARK, Sung Cheul CHO
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Publication number: 20200355396Abstract: The present invention relates to a smoke tube boiler including: a mix chamber which includes a mixing space in which combustion gas and air are mixed, a mix chamber body having a flat shape, and a flat plate-shaped burner disposed in a horizontal direction above a combustion chamber; and a heat exchanger which includes an outer shell forming an outer wall of a water tank into and from which a heat medium is introduced and discharged and which accommodates the heat medium, a plurality of tubes formed in a flat shape that are configured to allow combustion gas generated in the combustion chamber to flow therein and cause a heat exchange to occur between the combustion gas and the heat medium flowing outside the tubes, turbulators coupled to an inner side of the tube and configured to induce occurrence of a turbulent flow in the flow of the combustion gas, and multi-stage barriers disposed between the outer shell and the tube and configured to induce a heat medium flow direction to be alternately changed betweenType: ApplicationFiled: December 11, 2018Publication date: November 12, 2020Applicant: KYUNGDONG NAVIEN CO., LTD.Inventors: Jun Kyu PARK, Sung Cheul CHO, In Chul JEONG
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Publication number: 20200346955Abstract: A trap apparatus of condensate water according to the present invention comprises: a neutralizing part including an inlet through which condensate water is introduced, an internal space for containing a neutralizing agent for neutralizing the introduced condensate water, and a condensate water passage through which the condensate water that was neutralized by the neutralizing agent in the internal space is discharged; a discharge part including a storage space for storing the condensate water which is directly or indirectly introduced through the condensate water passage, an outlet which is open in a circular shape so as to discharge the stored condensate water, and a spherical ball capable of closing the outlet by being seated on the outlet, wherein the ball is spaced from the outlet by buoyancy of the condensate water when the condensate water is contained in the storage space above a critical water level, such that the condensate water can be discharged through the outlet, and the condensate water can be nType: ApplicationFiled: November 2, 2018Publication date: November 5, 2020Applicant: KYUNGDONG NAVIEN CO., LTD.Inventors: Jun Kyu Park, Sung Cheul Cho, Sung Jun Ahn
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Publication number: 20200141926Abstract: An in vitro methods of characterizing biliary excretion of a chemical entity using a single hepatocyte culture. Comprising providing cell culture comprising hepatocytes forming at least one bile canaliculus; contacting the cell culture with a first chemical entity for a time sufficient to allow uptake of the chemical entity by hepatocytes in the culture; disrupting the at least one bile canaliculus without lysing the hepatocytes and detecting the amount (if any) of the first chemical entity and/or a metabolite thereof released by the at least one bile canaliculus; and lysing the hepatocytes and detecting the amount of the first chemical entity and/or a metabolite thereof released by the hepatocytes.Type: ApplicationFiled: December 22, 2019Publication date: May 7, 2020Inventors: Eric NOVIK, Cheul CHO, Amit PAREKH, Robert FREEDMAN, Martin L. YARMUSH, Eric PLUDWINSKI
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Publication number: 20200056810Abstract: An exhaust duct includes an upper duct being open at opposite ends thereof and a lower duct being open at a tip end thereof. One end of the upper duct is connected, inside an enclosure of a water-heating device, to an exhaust adaptor disposed on the enclosure, and an opposite end of the upper duct communicates with the tip end of the lower duct. The upper duct is connected to the lower duct so as to be slidable along a reference direction in which the lower duct extends from the tip end of the lower duct, and the upper duct is configured to be separated from the exhaust adaptor by sliding along the reference direction.Type: ApplicationFiled: July 29, 2019Publication date: February 20, 2020Inventors: Jeong Woo KIM, Sung Cheul CHO
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Patent number: 10465165Abstract: The present invention provides a multifunctional 2-D and 3-D matrix for propagation of stem cells. In particular, a chitosan-based biomaterial scaffold is engineered to promote CNS regeneration from primitive neural precursors by stabilizing a recombinant protein, fibroblast growth factor to preserve the cardinal properties of stem cells. The matrix, is further modified by the addition of either the extracellular matrix protein fibronectin or the small peptide RGD or IKVAV. A method to manufacture an injectable multifunctional microsphere scaffold is also disclosed that is suitable as a vehicle for cell transplantation to repair traumatic brain injuries.Type: GrantFiled: January 28, 2014Date of Patent: November 5, 2019Assignees: RUTGERS, THE STATE UNIVERSITY OF NEW JERSEY, NEW JERSEY INSTITUTE OF TECHNOLOGYInventors: Cheul Cho, Steven Levison, Nolan Skop, Frances Calderon, Chirag Gandhi
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Publication number: 20160061820Abstract: An in vitro methods of characterizing biliary excretion of a chemical entity using a single hepatocyte culture. Comprising providing cell culture comprising hepatocytes forming at least one bile canaliculus; contacting the cell culture with a first chemical entity for a time sufficient to allow uptake of the chemical entity by hepatocytes in the culture; disrupting the at least one bile canaliculus without lysing the hepatocytes and detecting the amount (if any) of the first chemical entity and/or a metabolite thereof released by the at least one bile canaliculus; and lysing the hepatocytes and detecting the amount of the first chemical entity and/or a metabolite thereof released by the hepatocytes.Type: ApplicationFiled: September 2, 2015Publication date: March 3, 2016Inventors: Eric NOVIK, Cheul CHO, Amit PAREKH, Robert FREEDMAN, Martin L. YARMUSH
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Publication number: 20150361395Abstract: The present invention provides a multifunctional 2-D and 3-D matrix for propagation of stem cells. In particular, a chitosan-based biomaterial scaffold is engineered to promote CNS regeneration from primitive neural precursors by stabilizing a recombinant protein, fibroblast growth factor to preserve the cardinal properties of stem cells. The matrix, is further modified by the addition of either the extracellular matrix protein fibronectin or the small peptide RGD or IKVAV. A method to manufacture an injectable multifunctional microsphere scaffold is also disclosed that is suitable as a vehicle for cell transplantation to repair traumatic brain injuries.Type: ApplicationFiled: January 28, 2014Publication date: December 17, 2015Inventors: Steven Levison, Nolan Skop, Frances Calderon, Cheul Cho, Chirag Gandhi
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Patent number: 9067155Abstract: Provided is a filtration device used in order to improve the water quality of the final effluent in an advanced treatment facility for sewage and wastewater. The variable filtration device (10) of this type comprises a filtration tank (20), a filtration unit (30), a winding unit (50) and a filter cloth (12) arranged in such a way that the filtration conditions can be controlled by adjusting the number of turns of winding and the extent of pulling of the filter cloth in the chamber where the filtered water is formed, thereby allowing relatively easy porosity control as compared with the prior art, so enabling ready adjustment to the target water quality and water quantity even when the quality of the inflowing water varies.Type: GrantFiled: April 28, 2010Date of Patent: June 30, 2015Inventor: Hyun Cheul Cho
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Publication number: 20120152819Abstract: Provided is a filtration device used in order to improve the water quality of the final effluent in an advanced treatment facility for sewage and wastewater. The variable filtration device (10) of this type comprises a filtration tank (20), a filtration unit (30), a winding unit (50) and a filter cloth (12) arranged in such a way that the filtration conditions can be controlled by adjusting the number of turns of winding and the extent of pulling of the filter cloth in the chamber where the filtered water is formed, thereby allowing relatively easy porosity control as compared with the prior art, so enabling ready adjustment to the target water quality and water quantity even when the quality of the inflowing water varies.Type: ApplicationFiled: April 28, 2010Publication date: June 21, 2012Inventor: Hyun Cheul Cho