Patents by Inventor Doo-Young Ryu

Doo-Young Ryu 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: 9631313
    Abstract: A washing machine includes a cabinet, a washing tub disposed in the cabinet, a detergent supply device to supply detergent to the washing tub, a valve housing, having valve devices to control water supply, connected to the detergent supply device, a coupling pipe coupled to a water supply hose outside the cabinet to guide water into the cabinet, and a connection pipe to connect the valve housing to the coupling pipe, wherein the valve housing is directly coupled to the detergent supply device, and the connection pipe is fixed to the valve housing and the coupling pipe.
    Type: Grant
    Filed: June 6, 2013
    Date of Patent: April 25, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Dong Young Kim, Doo Young Ryu
  • Patent number: 9605367
    Abstract: A method of controlling a washing machine includes detecting a water level in a drum when a barrel cleaning is executed; supplying or draining water according to the detected water level such that a water level reaches a reference water level; soaking an interior of the drum in water; draining water after the interior of the drum is soaked in water; and detecting clothes contained in the drum by rotating the drum.
    Type: Grant
    Filed: March 31, 2014
    Date of Patent: March 28, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyun Bae Kim, Doo Young Ryu, Sung Mo Lee, Kyo Soon Choi, Seung Hoon Kim
  • Publication number: 20160369445
    Abstract: A washing machine of the present disclosure includes a cabinet having a first opening and a door assembly provided to open and close the first opening, wherein the door assembly includes a door main body having a second opening provided to be opened and closed independently of the first opening and a rear holder corresponding to the first opening, and the rear holder includes a door sealing unit spaced apart from the second opening and provided to come in contact with the diaphragm to seal the inside of the cabinet when the first opening is closed by a door assembly. By the configuration, the cabinet can be sealed more effectively, and laundry items or detergent may be additionally inserted even during a washing process.
    Type: Application
    Filed: September 1, 2016
    Publication date: December 22, 2016
    Inventors: Dong Young Kim, Adam Wishney, Doo Young Ryu, In Ju Lee
  • Patent number: 9523171
    Abstract: A washing machine having a balancer to offset unbalanced load generated during rotation of a drum. The washing machine includes a cabinet, a drum rotatably disposed in the cabinet, and a balancer mounted to the drum to offset unbalanced load generated in the drum during rotation of the drum. The balancer includes a balancer housing having an annular channel defined therein, at least one mass movably disposed in the channel, a magnet provided at one side of the balancer housing to restrain the mass, and a magnet case to receive the magnet.
    Type: Grant
    Filed: January 24, 2014
    Date of Patent: December 20, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Young Jin Cho, Doo Young Ryu, Won Young Jung, Jeong Hoon Kang
  • Publication number: 20160348295
    Abstract: Disclosed herein is a washing machine including a balancer module which is actively driven in a balancer housing to damp load unbalance of the washing machine, a power supplying unit provided at an outside of a tub to supply electric power to the balancer module, and a wire configured to pass through a hollow portion of a rotating shaft of a flange shaft to electrically connect the balancer module and the power supplying unit. The washing machine comprises a slip ring disposed between the rotating balancer module and the fixed power supplying unit to prevent the wire from being twisted. An internal wire disposed in a rotating tub is covered by a waterproofing tube so as to prevent moisture from permeating the internal wire. The hollow portion of the rotating shaft of the flange shaft is sealed by a stopper member and a packing member so as to prevent the moisture from permeating. An external wire disposed at an outside of the tub may be neatly arranged by a guide bracket.
    Type: Application
    Filed: February 2, 2015
    Publication date: December 1, 2016
    Inventors: IL Sung Bae, In Ju Lee, Doo Young Ryu, Jae Seuk Park, Jeoung Kyo Jeoung
  • Patent number: 9476157
    Abstract: A drain hose has a simple structure which absorbs vibration of a drain pump, and a washer has the same. The washer includes a main body, a drain pump disposed at the lower portion of the main body, a drain hose to guide wash water pumped by the drain pump to the outside of the main body, and an anti-vibration member formed of a material differing from the drain hose, and including a corrugation part connected between the drain pump and the drain hose and absorbing vibration of the drain pump during drainage of the wash water.
    Type: Grant
    Filed: January 4, 2012
    Date of Patent: October 25, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sang Ho Park, Doo Young Ryu, Chan Woo Park, John Ha Park
  • Patent number: 9416481
    Abstract: A washing machine includes a cabinet, a washing tub disposed in the cabinet, a detergent supply device to supply detergent to the washing tub, a valve housing, having valve devices to control water supply, connected to the detergent supply device, a coupling pipe coupled to a water supply hose outside the cabinet to guide water into the cabinet, and a connection pipe to connect the valve housing to the coupling pipe, wherein the valve housing is directly coupled to the detergent supply device, and the connection pipe is fixed to the valve housing and the coupling pipe.
    Type: Grant
    Filed: October 14, 2011
    Date of Patent: August 16, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Dong Young Kim, Doo Young Ryu
  • Patent number: 9228286
    Abstract: A drum type washing machine includes a housing; a spin tub rotatable by a driving motor through a rotating shaft; a balancer installed at a rear section of the spin tub; a shaft flange including a hub section to fixedly install the rotating shaft and a plurality of arm sections extending radially outward from the hub section and mounted to the spin tub so as to uniformly transfer the rotational force to the spin tub; and a rear cover provided on the rear section of the spin tub. The balancer is disposed adjacent to the rear cover and the shaft flange such that the first annular-shaped member contacts the shaft flange and the second annular-shaped member contacts the rear cover.
    Type: Grant
    Filed: July 28, 2014
    Date of Patent: January 5, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ja Young Kim, Ito Michiaki, Doo Young Ryu, Myung Sun Kang
  • Patent number: 9109322
    Abstract: A front loading washing machine including a housing; a water reservoir installed in the housing for containing washing water; a spin tub provided in the water reservoir to hold laundry to be washed, the spin tub having an annular recess and rotating with respect to a horizontal axis of the washing machine; and at least one balancer installed in the annular recess of the spin tub, the balancer comprising an annular shaped race formed of a plastic material.
    Type: Grant
    Filed: April 29, 2011
    Date of Patent: August 18, 2015
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Doo Young Ryu, Ja Young Kim, Ito Michiaki, Myung Sun Kang
  • Patent number: 8991222
    Abstract: Disclosed herein is a washing machine that is capable of increasing a frictional force between an outer diameter of a rotary shaft and an inner race of a bearing to prevent the sliding between the rotary shaft and the bearing due to a gap between the outer diameter of the rotary shaft and the inner race of the bearing, thereby preventing creep noise from the rotary shaft. The washing machine includes at least one elastic member disposed between the outer diameter of the rotary shaft and the inner race of the bearing to prevent noise due to the sliding between the rotary shaft and the bearing.
    Type: Grant
    Filed: February 19, 2014
    Date of Patent: March 31, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Do Yeon Kim, Doo Young Ryu
  • Publication number: 20140331720
    Abstract: A drum type washing machine includes a housing; a spin tub rotatable by a driving motor through a rotating shaft; a balancer installed at a rear section of the spin tub; a shaft flange including a hub section to fixedly install the rotating shaft and a plurality of arm sections extending radially outward from the hub section and mounted to the spin tub so as to uniformly transfer the rotational force to the spin tub; and a rear cover provided on the rear section of the spin tub. The balancer is disposed adjacent to the rear cover and the shaft flange such that the first annular-shaped member contacts the shaft flange and the second annular-shaped member contacts the rear cover.
    Type: Application
    Filed: July 28, 2014
    Publication date: November 13, 2014
    Inventors: Ja Young KIM, Ito MICHIAKI, Doo Young RYU, Myung Sun KANG
  • Patent number: 8857224
    Abstract: A washing machine is provided having at least one balancer and a method of manufacturing a balancer thereof is further provided, the method and machine capable of reducing a manufacturing cost and an assembly time, and allowing the balancer assembled to a spin tub to be easily replaced with a new balancer. The balancer applied to the washing machine and the method of manufacturing the balancer of the washing machine are adapted such that a pipe is formed in an annular shape and is assembled to a spin tub, so that a manufacturing cost and an assembly time can be reduced to improve mass productivity. Further, when the balancer is determined to fail after being assembled to the spin tub, the balancer can be rapidly and conveniently replaced with a new balancer, so that material costs can be reduced.
    Type: Grant
    Filed: May 30, 2007
    Date of Patent: October 14, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ja Young Kim, Ito Michiaki, Doo Young Ryu, Myung Sun Kang
  • Patent number: 8820124
    Abstract: A drum type washing machine including a balancer capable of rapidly reducing vibration of a spin tub. The drum type washing machine includes a spin tub which is rotated by receiving rotational force from a driving motor through a rotating shaft, a rear balancer having an annular shape and being coupled to the spin tub, and a shaft flange provided at a center portion thereof with the rotating shaft and coupled to the spin tub so as to uniformly transfer the rotational force to the spin tub. The rear balancer is supported on a rear surface of a rear cover by the shaft flange. Thus, the balls accommodated in the balancer are prevented from moving out of the balancer, even if the balancer is broken due to long-period use.
    Type: Grant
    Filed: February 28, 2013
    Date of Patent: September 2, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ja Young Kim, Ito Michaki, Doo Young Ryu, Myung Sun Kang
  • Patent number: 8800327
    Abstract: A drum type washing machine includes an annular recess formed in the front cover such that the annular recess is located immediately adjacent to a wall of the drum body; and a ball balancer including an annular-shaped racer having a closed internal space in which a plurality of balls and viscous oil are accommodated. The annular-shaped racer includes first and second injection molded members joined to each other to form the closed internal space. The ball balancer is supported by the annular recess formed in the front cover of the drum, and the ball balancer is configured to be attachable to the drum with the viscous oil and the plurality of balls already in the ball balancer.
    Type: Grant
    Filed: August 13, 2012
    Date of Patent: August 12, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ja Young Kim, Doo Young Ryu
  • Publication number: 20140208809
    Abstract: A balancer includes a balancer housing having an annular channel defined therein, at least one mass movably disposed in the channel, and at least one magnet coupled to one side of the balancer housing to restrain movement of the mass along the channel when rotational speed of a drum of the washing machine is within a predetermined range. The magnet includes a plurality of unit magnets arranged in a circumferential direction of the balancer housing.
    Type: Application
    Filed: January 24, 2014
    Publication date: July 31, 2014
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jeong Hoon KANG, Min Sung Kim, Dong Ha Jung, Doo Young Ryu
  • Publication number: 20140208808
    Abstract: A balancer includes a balancer housing coupled to a drum of a washing machine, the balancer housing having an annular channel defined therein, at least one mass movably disposed in the channel, at least one magnet to restrain movement of the mass along the channel when rotational speed of the drum is within a predetermined range, and at least one magnet fixing member coupled to an outside of the balancer housing to receive and fix the magnet.
    Type: Application
    Filed: January 24, 2014
    Publication date: July 31, 2014
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Doo Young Ryu, Won Young Jung, Young Jin Cho, Jeong Hoon Kang
  • Publication number: 20140208805
    Abstract: A balancer includes a balancer housing having an annular channel defined therein, at least one mass movably disposed in the channel, at least one magnet coupled to one side of the balancer housing to restrain movement of the mass along the channel when rotational speed of a drum of the washing machine is within a predetermined range, and an inclined sidewall formed at an inner surface of the balancer housing to support the mass in a direction resisting centrifugal force applied to the mass during rotation of the drum.
    Type: Application
    Filed: January 24, 2014
    Publication date: July 31, 2014
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Dong Ha JUNG, Jeong Hoon Kang, Min Sung Kim, Doo Young Ryu
  • Publication number: 20140208807
    Abstract: A washing machine having a balancer to offset unbalanced load generated during rotation of a drum. The washing machine includes a cabinet, a drum rotatably disposed in the cabinet, and a balancer mounted to the drum to offset unbalanced load generated in the drum during rotation of the drum. The balancer includes a balancer housing having an annular channel defined therein, at least one mass movably disposed in the channel, a magnet provided at one side of the balancer housing to restrain the mass, and a magnet case to receive the magnet.
    Type: Application
    Filed: January 24, 2014
    Publication date: July 31, 2014
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Young Jin CHO, Doo Young Ryu, Won Young Jung, Jeong Hoon Kang
  • Publication number: 20140208524
    Abstract: A method of controlling a washing machine includes detecting a water level in a drum when a barrel cleaning is executed; supplying or draining water according to the detected water level such that a water level reaches a reference water level; soaking an interior of the drum in water; draining water after the interior of the drum is soaked in water; and detecting clothes contained in the drum by rotating the drum.
    Type: Application
    Filed: March 31, 2014
    Publication date: July 31, 2014
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyun Bae KIM, Doo Young RYU, Sung Mo LEE, Kyo Soon CHOI, Seung Hoon KIM
  • Publication number: 20140208806
    Abstract: A balancer includes a balancer housing coupled to a drum of a washing machine, the balancer housing having an annular channel defined therein, at least one mass movably disposed in the channel, at least one magnet to restrain movement of the mass along the channel when rotational speed of the drum is within a predetermined range, and at least one magnet fixing rib formed at one side of the balancer housing to fix the magnet.
    Type: Application
    Filed: January 24, 2014
    Publication date: July 31, 2014
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Doo Young RYU, Won Young JUNG, Young Jin CHO, Jeong Hoon KANG