Patents by Inventor Jong Min Sin
Jong Min Sin 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: 8087261Abstract: A refrigerator is provided that includes a cold air duct that receives cold air circulating inside of a refrigerating chamber and a freezing chamber, an evaporator in the cold air duct, at least one defrosting heater in the cold air duct that selectively emits heat, a fan in the cold air duct, that selectively directs the cold air in an upward or downward direction, a motor that drives the fan, and an open/close device that closes a space having the evaporator, the defrosting heater, and the fan positioned therein selectively, thereby providing an improved defroster for an evaporator.Type: GrantFiled: October 11, 2004Date of Patent: January 3, 2012Assignee: LG Electronics Inc.Inventors: Sang Ik Lee, Bong Jun Choi, Jong Min Sin, Youngsan Jeon, Jae Seong Sim, Young Jeong
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Patent number: 7908962Abstract: A compressor is provided that includes a supplementary torque providing part that reduces a speed of a piston compression of refrigerant and increases the speed of the piston in drawing of the refrigerant. This structure reduces a compression rate of the refrigerant in compression relatively, and increases a re-expansion rate, to maximize suction efficiency.Type: GrantFiled: December 24, 2003Date of Patent: March 22, 2011Assignee: LG Electronics Inc.Inventors: Hyun Kim, Ji Young Bae, Chul Gi Roh, Chang Yong Jang, Jong Min Sin
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Patent number: 7891956Abstract: A rotary compressor includes a driving shaft having an eccentric portion, a cylinder, and a roller installed on an outer circumference of the eccentric portion to contact an inner circumference of the cylinder, performing a rolling motion along the inner circumference and forming a fluid chamber to suck and compress fluid along with the inner circumference. A vane is installed elastically in the cylinder to contact the roller continuously. Discharge ports communicate with the fluid chamber. Suction ports communicate with the fluid chamber and are spaced apart from each other by a predetermined angle. A valve assembly selectively opens any one of the suction ports according to a rotation direction of the driving shaft. Compression spaces having different volumes are formed in the fluid chamber according to the rotation direction of the driving shaft such that two different compression capacities are formed.Type: GrantFiled: April 30, 2004Date of Patent: February 22, 2011Assignee: LG Electronics Inc.Inventors: Ji Young Bae, Chul Gi Roh, Kyoung Jun Park, Young Hwan Ko, Jong Min Sin
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Patent number: 7841206Abstract: A refrigerator having a main body includes a refrigerating chamber and a freezing chamber provided for storing foods. A cool air-generating device provided in the body generates cool air and a cool air-supplying device including at least one opening for discharging the cool air, is used to circulate the cool air through the freezing chamber, the refrigerating chamber, and the cool air-generating device. A separator provided adjacent to the opening acts to uniformly diffuse the cool air in the freezing chamber and the refrigerating chamber. The separator acts to separate two flows that are then brought back together. The collision and mixing of the two flows create a turbulent flow of air that is directed into the refrigerating and freezing chambers.Type: GrantFiled: December 14, 2004Date of Patent: November 30, 2010Assignee: LG Electronics Inc.Inventors: Bong Jun Choi, Jong Min Sin, Jae Seong Sim, Young Jeong, Young Hwan Ko, Jun Hyun Hwang
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Publication number: 20080022850Abstract: Compressor including a supplementary torque providing part for reducing a speed of a piston (340) in compression of refrigerant, and increasing the speed of the piston (340) in drawing of the refrigerant, thereby reducing a compression rate of the refrigerant in compression relatively, and increasing a re-expansion rate, to maximize a suction efficiency.Type: ApplicationFiled: December 24, 2003Publication date: January 31, 2008Inventors: Hyun Kim, Ji Young Bae, Chul Gi Roh, Chang Yong Jang, Jong Min Sin
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Publication number: 20080000257Abstract: A refrigerator having a main body includes a refrigerating chamber and a freezing chamber provided for storing foods. A cool air-generating device provided in the body generates cool air and a cool air-supplying device including at least one opening for discharging the cool air, is used to circulate the cool air through the freezing chamber, the refrigerating chamber, and the cool air-generating device. A separator provided adjacent to the opening acts to uniformly diffuse the cool air in the freezing chamber and the refrigerating chamber. The separator acts to separate two flows that are then brought back together. The collision and mixing of the two flows create a turbulent flow of air that is directed into the refrigerating and freezing chambers.Type: ApplicationFiled: December 14, 2004Publication date: January 3, 2008Inventors: Bong Jun Choi, Jong Min Sin, Jae Seong Sim, Young Jeong, Young Hwan Ko, Jun Hyun Hwang
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Publication number: 20070000271Abstract: Refrigerator including a cold air duct for receiving cold air circulating insides of a refrigerating chamber and a freezing chamber, an evaporator in the cold air duct, at least one defrosting heater in the cold air duct for selective emission of heat, a fan in the cold air duct, for selective direction of the cold air in upward or downward, a motor for driving the fan, and open/close means for closing a space having the evaporator, the defrosting heater, and the fan positioned therein selectively, thereby providing an improved defroster for an evaporator.Type: ApplicationFiled: October 11, 2004Publication date: January 4, 2007Applicant: LG ELECTRONICS INC.Inventors: Sang Lee, Bong Choi, Jong Min Sin, Youngsan Jeon, Young Jeong
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Patent number: 6857288Abstract: The present invention relates to a heat exchanger in a refrigerator having a simple structure and an improved heat exchange performance. For this, the present invention includes refrigerant tubes (10) having a plurality of straight parts (11) and a plurality of curved parts (12) connected between the straight parts arrange to form one or more columns perpendicular to each other, a plurality of straight plate type fins (20) fitted to the straight parts (11) of the refrigerant tubes (10) by means of a plurality of through holes (21) formed therein to form one or more than columns along a length direction, and one pair of reinforcing plates (30) fitted to the straight parts of the refrigerant tubes on both sides of the fins, wherein ST=D/N, where D denotes a width of the reinforcing plate (30), ST denotes a distance between centers of the refrigerant tube in each column, N denotes a number of the columns of the refrigerant tubes (21).Type: GrantFiled: February 28, 2002Date of Patent: February 22, 2005Assignee: LG Electronics Inc.Inventors: Sam Chul Ha, Jong Min Sin, Bong Jun Choi, Cheol Hwan Kim, Young Hwan Ko, Young Jeong, Seong Hai Jeong, Alexei V Tikhonov
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Patent number: 6789614Abstract: A heat exchanger is provided for a refrigerator and includes one or more refrigerant tubes for refrigerant flow, and a plurality of straight fins having lengths different from each other fitted to the refrigerant tubes at fixed intervals in parallel to each other by means of through holes formed therein. The heat exchanger includes sections having different intervals or spaces between fins, wherein sections with the smallest fin spaces have a size 75% or less of a total size of the heat exchanger.Type: GrantFiled: June 12, 2002Date of Patent: September 14, 2004Assignee: LG Electronics Inc.Inventors: Jong Min Sin, Bong Jun Choi, Cheol Hwan Kim, Seong Hai Jeong, Young Hwan Ko, Young Jeong, Sam Chul Ha
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Publication number: 20040118152Abstract: The present invention relates to a heat exchanger in a refrigerator having a simple structure and an improved heat exchange performance. For this, the present invention includes refrigerant tubes (10) having a plurality of straight parts (11) and a plurality of curved parts (12) connected between the straight parts arrange to form one or more columns perpendicular to each other, a plurality of straight plate type fins (20) fitted to the straight parts (11) of the refrigerant tubes (10) by means of a plurality of through holes (21) formed therein to form one or more than columns along a length direction, and one pair of reinforcing plates (30) fitted to the straight parts of the refrigerant tubes on both sides of the fins, wherein ST=D/N, where D denotes a width of the reinforcing plate (30), ST denotes a distance between centers of the refrigerant tube in each column, N denotes a number of the columns of the refrigerant tubes (21).Type: ApplicationFiled: October 24, 2003Publication date: June 24, 2004Inventors: Sam Chul Ha, Jong Min Sin, Bong Jun Choi, Cheol Hwan Kim, Young Hwan Ko, Young Jeong, Seong Hai Jeong, Alexei V Tikhonov
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Publication number: 20030159814Abstract: The present invention relates to a heat exchanger in a refrigerator having, a simple structure and improved performance. The present invention includes refrigerant tubes for refrigerant flow, and a plurality of straight fins having lengths different from each other fitted to the refrigerant tubes at fixed intervals in parallel to each other by means of through holes formed therein, the heat exchanger having sections of different fin intervals, wherein a section with the smallest fin intervals has a size being 75% of a total size or less.Type: ApplicationFiled: June 12, 2002Publication date: August 28, 2003Inventors: Jong Min Sin, Bong Jun Choi, Cheol Hwan Kim, Seong Hai Jeong, Young Hwan Ko, Young Jeong, Sam Chul Ha