Liquid Handling Patents (Class 68/12.19)
  • Patent number: 10934659
    Abstract: A washing machine includes: a cabinet; a tub; a pump for discharging washing water stored in the tub to an outside of the tub; and a valve assembly for circulating washing water discharged from the pump to the tub and discharging washing water to an outside of the cabinet. The valve assembly includes: a valve housing; a first chamber defined inside the valve housing and configured to connect to a circulation flow path for sending washing water to the tub and a drainage flow path for draining washing water to the outside of the cabinet; and a disc valve configured to linearly move inside the first chamber and selectively connect the first chamber to the drainage flow path or to the circulation flow path based on a water pressure applied by washing water discharged from the pump.
    Type: Grant
    Filed: April 3, 2019
    Date of Patent: March 2, 2021
    Assignee: LG Electronics Inc. and Woosung Valve Co., Ltd.
    Inventors: Suil Park, Jinhyouk Shin, Sungjun Kim, Youngsoo Kim, Yoonseob Eom
  • Patent number: 10844973
    Abstract: A liquid electromagnetic valve includes an inlet connected to an external liquid source; an outlet discharging liquid entering from the inlet; a flow path forming member having a flow path connecting the inlet and the outlet formed thereto; an opening-closing member capable of opening and closing the flow path; a drive portion opening and closing the opening-closing member based on a control performed by an external element; and a minute bubble generator provided in the flow path and having plural narrowing portions for adding minute bubbles to a liquid passing through the flow path by narrowing the flow path in plural stages.
    Type: Grant
    Filed: January 26, 2018
    Date of Patent: November 24, 2020
    Assignee: TOSHIBA LIFESTYLE PRODUCTS & SERVICES CORPORATION
    Inventors: Tomonori Uchiyama, Hidetake Hayashi, Masami Hattori
  • Patent number: 10822734
    Abstract: Provided is a washing machine including a main body having an opening and a door assembly disposed at the opening, wherein the door assembly includes a door that opens and closes the opening and an auxiliary washing unit having an auxiliary washing space in which hand-washing can be performed, and provided to pivot about one side of the door in an inside of the door. Through this configuration, separated washing spaces can be provided and separate hand-washing can be performed. Also, pressure of washing water supplied into the washing machine can be regulated so that water supply efficiency can be improved and a flow rate of the washing water can be adjusted.
    Type: Grant
    Filed: November 5, 2018
    Date of Patent: November 3, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Min Hyung Kim, Hyun Mook Kim, Yong Kwon Won, Masato Suzuki, Mitsuhiro Shigeri, Young Sun Shin, Goan Su Jung, Amitoj Singh, Gyu Woo Kim
  • Patent number: 10808347
    Abstract: A washing machine appliance having a partition assembly is provided herein. The washing machine appliance may include a cabinet, a tub disposed within the cabinet, a basket, a partition plate, and a plurality of fluid guides. The basket may be rotatably mounted within the tub. The basket may include a bottom wall and a sidewall defining a chamber for receipt of a load of items for washing. The partition plate may be movably mounted above the bottom wall within the basket. The partition plate may define a first sub-chamber below the partition plate and a second sub-chamber above the partition plate. The plurality of fluid guides may extend along the sidewall below the partition plate within the first sub-chamber.
    Type: Grant
    Filed: June 20, 2018
    Date of Patent: October 20, 2020
    Assignee: Haier US Appliance Solutions, Inc.
    Inventors: Jae Hyun Oh, Tae-Hoon Lim
  • Patent number: 10793986
    Abstract: Provided is a washing machine including an auxiliary washing unit configured with an auxiliary washing space formed separately from a main washing space formed in a rotating tub, and a discharging assembly by which the auxiliary washing space and the main washing space are selectively in communication with each other. Through such a structure, auxiliary washing may be independently performed, and washing efficiency may be enhanced.
    Type: Grant
    Filed: March 26, 2019
    Date of Patent: October 6, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jun Ho Kim, Chang Yeong Kim, Hyeon Cheol Kim, Goan Su Jung, Min Hyung Kim, Yong Kwon Won
  • Patent number: 10738403
    Abstract: A method for monitoring water consumption of a washing machine, comprising: the washing machine executing a clothes washing procedure and receiving a water level setting instruction; the washing machine executing the clothes washing procedure and acquiring opening time t of a water intake valve from start to end; the washing machine calculating the water intake flow of the water intake valve Q=Q0+?Q, and calculating the water consumption W=Qt; wherein with a normal water pressure and no load, when the water intake of the washing machine reaches the level, the theoretical flow value is Q0, the theoretical water intake time is t0, ?Q is a flow correction value, ?Q is calculated from a time difference (t?t0) and a correction coefficient k, and the correction coefficient k is a preset fixed value.
    Type: Grant
    Filed: January 23, 2017
    Date of Patent: August 11, 2020
    Assignee: QINGDAO HAIER WASHING MACHINE CO., LTD.
    Inventors: Hai Shu, Junming Yin, Zhenxing Huang, Sheng Xu
  • Patent number: 10711385
    Abstract: Disclosed herein is a washing machine that includes a tub disposed in a main body of the washing machine to store water. A circulation apparatus includes a circulation pump operable to circulate the water in and out of the tub. A detergent supply apparatus is coupled to the circulation apparatus to discharge detergent to the circulation apparatus so that operation of the circulation pump causes the discharged detergent to be supplied to the tub.
    Type: Grant
    Filed: December 5, 2016
    Date of Patent: July 14, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yong Kwon Kim, Kyung Mok Yoo, Seon Ju Lee, Chul Yong Cho, Jong Su Jeon
  • Patent number: 10570545
    Abstract: A double-drum washing machine has a first washing drum and a second washing drum. A control method comprises water intake and drainage control and high-power process control, wherein the water intake and drainage control comprises water intake control and water drainage control; the first washing drum judges whether to reuse drained water of the second washing drum before executing a water intake process and judges whether to enable the drained water to be drained into the second washing drum and reuse the water or not before executing a water drainage process; and the high-power process control is used for controlling any one of a heating process, a dewatering process and a drying process of the first washing drum and any one of a heating process, a dewatering process and a drying process of the second washing drum not to be executed at the same time.
    Type: Grant
    Filed: August 31, 2015
    Date of Patent: February 25, 2020
    Assignee: QINGDAO HAIER DRUM WASHING MACHINE CO., LTD.
    Inventors: Wenwei Li, Jinkai Wang, Jun Wu, Yuanyuan Chang
  • Patent number: 10570543
    Abstract: A washing machine includes a machine housing, a wash drum suspended by a plurality of carrier arms, a force sensor associated with at least one carrier arm provides a signal that is representative of a force acting on the carrier arm, and a control unit connected to the force sensor. The control unit receives measurement information during each of a plurality of phases of a program run of the washing machine, that is representative of a signal profile over time of the sensor signal over at least a portion of a revolution of the wash drum, introduces a defined amount of water into the wash drum between each pair of successive phases, determines parameter information indicative of the fabric type of laundry loaded into the drum based on the measurement information obtained during the various phases, and controls the program run in dependence on the determined parameter information.
    Type: Grant
    Filed: October 6, 2016
    Date of Patent: February 25, 2020
    Assignee: emz-Hanauer GmbH & Co. KGaA
    Inventor: Johann Schenkl
  • Patent number: 10519587
    Abstract: A laundry treating appliance includes a cabinet defining an interior and having an access opening to the interior, a treating chamber located within the interior and accessible through the access opening, a dispenser having a drawer with at least one chemistry container and a faucet, and a water supply fluidly coupled to the faucet.
    Type: Grant
    Filed: February 27, 2017
    Date of Patent: December 31, 2019
    Assignee: Whirlpool Corporation
    Inventors: Benjamin A. Beres, Paul E. Brownie, Eric A. Gallagher, Guy M. Kazmierzak, Andrew C. Kubasiak
  • Patent number: 10519589
    Abstract: A laundry treating appliance includes a cabinet defining an interior and having an access opening to the interior, a treating chamber located within the interior and accessible through the access opening, a dispenser having a drawer with at least one chemistry container and a faucet, and a water supply fluidly coupled to the faucet.
    Type: Grant
    Filed: February 27, 2017
    Date of Patent: December 31, 2019
    Assignee: Whirlpool Corporation
    Inventors: Benjamin A. Beres, Paul E. Brownie, Eric A. Gallagher, Guy M. Kazmierzak, Andrew C. Kubasiak
  • Patent number: 10378139
    Abstract: Provided is a washing agent pump and a laundry treating apparatus having the same. The laundry treating apparatus may include a cabinet, a tub provided within the cabinet, a rotary tub provided within the tub in a rotatable manner, and a washing agent supply unit. The washing agent supply unit may include a storage container to store a liquid washing agent including a liquid detergent or a liquid softener, the storage container being slidably provided in the cabinet, a washing agent supply passage having one side connected to the storage container and another side connected to the tub, and a washing agent delivery device provided in the washing agent supply passage to deliver the liquid washing agent to the tub.
    Type: Grant
    Filed: December 28, 2016
    Date of Patent: August 13, 2019
    Assignee: LG ELECTRONICS INC.
    Inventors: Sungwoon Jung, Hunjun Jang
  • Patent number: 10301763
    Abstract: Provided is a washing machine that includes a body which includes an opening, an auxiliary washing unit which forms a washing space with an open top when being mounted on the body, a water supply apparatus which supplies warm water to the washing space, and a control unit which controls distribution of cold water and hot water of the water supply apparatus to supply the warm water to the washing space.
    Type: Grant
    Filed: March 31, 2016
    Date of Patent: May 28, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Chang Hoo Kim, Dong-Il Back, Min-Hyung Kim
  • Patent number: 10280547
    Abstract: A washing machine appliance and method of operation is provided. The washing machine appliance has a tub and a basket rotatably mounted within the tub. The basket defines a chamber for receipt of articles for washing. The method includes performing a wash cycle, the wash cycle including flowing a volume of liquid into the tub, agitating articles within the tub, draining liquid from the tub after agitating the articles, and spinning the basket after draining liquid from the tub. The method further includes measuring movement of the tub during the wash cycle, wherein measuring movement includes detecting movement of the tub as one or more displacement amplitudes using an accelerometer and a gyroscope, determining whether the displacement amplitudes meet one or more predetermined criteria, and generating a filtered value set based on the displacement amplitudes determined to meet the one or more predetermined criteria.
    Type: Grant
    Filed: August 25, 2016
    Date of Patent: May 7, 2019
    Assignee: Haier US Appliance Solutions, Inc.
    Inventor: Paul Owen Davis
  • Patent number: 10119218
    Abstract: A washing machine includes a door and an auxiliary washing unit that may be readily fastened to each other by a locking unit for fastening the door and the auxiliary washing unit. The washing machine includes a main body in which an opening is formed, a door that opens and closes the opening, an auxiliary washing unit that is provided on an inner side of the door to form an auxiliary washing space, and a locking unit that locks the door and the auxiliary washing unit. Here, the locking unit may perform linear motion in one direction to lock or unlock the door and the auxiliary washing unit.
    Type: Grant
    Filed: October 5, 2015
    Date of Patent: November 6, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Won Jae Han, Do Haeng Kim, Young-Hyun Kim, Ji Yoon Kim, Min Hwan Oh, Hong Seok Ko, Jae Hee Jo, Je Wan Hong
  • Patent number: 10058229
    Abstract: A dishwasher includes a tub at least partially defining a treating chamber and a sprayer for spraying liquid to the treating chamber. The sprayer may include a liquid passage and at least one outlet extending from an interior to an exterior of the sprayer and in fluid communication with the liquid passage. A membrane may have at least one opening and may be in fluid communication with the liquid passage to control the flow of liquid through the at least one outlet.
    Type: Grant
    Filed: June 13, 2017
    Date of Patent: August 28, 2018
    Assignee: Whirlpool Corporation
    Inventor: Mark S. Feddema
  • Patent number: 10047474
    Abstract: Disclosed herein is a washing machine including a main body having a washing space and an opening through which clothes are inserted and withdrawn into and from the washing space, a door to open and close the opening, and a sub-washing unit to form a sub-washing space separate from the washing space and separably provided from the door. By such configuration, sub-washing may be efficiently performed, and space utilization may be improved.
    Type: Grant
    Filed: March 11, 2016
    Date of Patent: August 14, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jun Hyun Park, Geun Kang, Sung Jin Kim
  • Patent number: 10023986
    Abstract: A washing machine which enables a user to effectively perform hand washing of washings in a washing and dewatering tank is disclosed. A full-automatic washing machine has: a washing and dewatering tank for performing washing and dewatering of washings; a water supply unit for supplying water into the washing and dewatering tank; a control part for controlling the water supply unit; an auxiliary washing plate which is detachably installed in the washing and dewatering tank and has a shape of concaves and convexes on an upper surface; and a hand washing water supply button which is operated when the auxiliary washing plate installed in the washing and dewatering tank is used for performing hand washing of washings. Here, the control part supplies water to the water supply unit based on a condition already operated on the hand washing water supply button.
    Type: Grant
    Filed: December 31, 2014
    Date of Patent: July 17, 2018
    Assignees: Haier Asia International Co., Ltd., Qingdao Haier Washing Machine Co., Ltd.
    Inventors: Tomonari Kawaguchi, Katsuji Onishi, Minoru Nakanishi
  • Patent number: 9758913
    Abstract: A washing machine appliance and a method for operating a washing machine appliance are provided. The method includes estimating a mass of articles within a wash chamber of a drum based at least in part on an inertia of the drum and articles within the wash chamber of the drum, gauging the mass of articles within the wash chamber of the drum based at least in part on a volume of water within a tub, and establishing a load type of articles within the wash chamber of the drum based at least in part on the mass of articles within the wash chamber of the drum from the step of estimating and the mass of articles within the wash chamber of the drum from the step of gauging.
    Type: Grant
    Filed: June 27, 2013
    Date of Patent: September 12, 2017
    Assignee: Haier US Appliance Solutions, Inc.
    Inventor: Roberto Obregon
  • Patent number: 9624617
    Abstract: A washing machine appliance and a method for operating a washing machine appliance are provided. The method includes steps to determine whether articles received in the washing machine appliance for washing were wet when loaded into the washing machine appliance such that one or more parameters of a wash cycle may be adjusted. The washing machine appliance includes features for determining whether articles received in the washing machine appliance for washing were wet when loaded into the washing machine appliance and for adjusting one or more parameters of a wash cycle.
    Type: Grant
    Filed: January 8, 2015
    Date of Patent: April 18, 2017
    Assignee: Haier US Appliance Solutions, Inc.
    Inventors: Ryan Ellis Leonard, Stephen Edward Hettinger
  • Patent number: 9340915
    Abstract: Disclosed is a washing machine capable of improving the efficiency of washing and product quality by improving a pivoting structure of a door assembly having a door and an auxiliary washing unit forming an auxiliary washing space. Also, the door and the auxiliary washing unit may be coupled by a locking part so that a user can open and close the door assembly conveniently when manual washing is not needed. When manual washing is needed, the user may release a locked state of the locking part to move the door and the auxiliary washing unit separately.
    Type: Grant
    Filed: May 19, 2015
    Date of Patent: May 17, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Min Hyung Kim, Yong Kwon Won, Jun Ho Kim, Hyeon Cheol Kim, Sung Yong Eun, Goan Su Jung, Young Sun Shin, Mitsuhiro Shigeri, Hyun Mook Kim
  • Patent number: 9315934
    Abstract: Provided is a washing machine including an auxiliary washing unit configured with an auxiliary washing space formed separately from a main washing space formed in a rotating tub, and a discharging assembly by which the auxiliary washing space and the main washing space are selectively in communication with each other. Through such a structure, auxiliary washing may be independently performed, and washing efficiency may be enhanced.
    Type: Grant
    Filed: June 11, 2015
    Date of Patent: April 19, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jun Ho Kim, Chang Yeong Kim, Hyeon Cheol Kim, Goan Su Jung, Min Hyung Kim, Yong Kwon Won
  • Patent number: 9249536
    Abstract: The disclosure provides a washing machine and method for controlling the same. An embodiment of the washing machine includes an auxiliary washing unit placed below a door arranged on top of a main body; an input unit for receiving instructions to start and stop auxiliary washing; and a water supply unit for supplying water to the auxiliary washing unit if the instruction to start water supply is input, and stopping supplying water to the auxiliary washing unit if the instruction to stop water supply is input.
    Type: Grant
    Filed: June 29, 2015
    Date of Patent: February 2, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Yeon Woo Kim
  • Patent number: 9217215
    Abstract: Provided is a washing machine including a main body having an opening and a door assembly disposed at the opening, wherein the door assembly includes a door that opens and closes the opening and an auxiliary washing unit having an auxiliary washing space in which hand-washing can be performed, and provided to pivot about one side of the door in an inside of the door. Through this configuration, separated washing spaces can be provided and separate hand-washing can be performed. Also, pressure of washing water supplied into the washing machine can be regulated so that water supply efficiency can be improved and a flow rate of the washing water can be adjusted.
    Type: Grant
    Filed: May 15, 2015
    Date of Patent: December 22, 2015
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Min Hyung Kim, Hyun Mook Kim, Yong Kwon Won, Masato Suzuki, Mitsuhiro Shigeri, Young Sun Shin, Goan Su Jung, Amitoj Singh, Gyu Woo Kim
  • Patent number: 9200399
    Abstract: Provided is a washing machine including a main body having an opening and a door assembly disposed at the opening, wherein the door assembly includes a door that opens and closes the opening and an auxiliary washing unit having an auxiliary washing space in which hand-washing can be performed, and provided to pivot about one side of the door in an inside of the door. Through this configuration, separated washing spaces can be provided and separate hand-washing can be performed. Also, pressure of washing water supplied into the washing machine can be regulated so that water supply efficiency can be improved and a flow rate of the washing water can be adjusted.
    Type: Grant
    Filed: May 15, 2015
    Date of Patent: December 1, 2015
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Min Hyung Kim, Hyun Mook Kim, Yong Kwon Won, Masato Suzuki, Mitsuhiro Shigeri, Young Sun Shin, Goan Su Jung, Amitoj Singh, Gyu Woo Kim
  • Patent number: 8997288
    Abstract: Disclosed herein is a method of controlling drainage of wash water remaining in a washing machine. The method includes draining wash water from a tub to an outside of the washing machine, supplying wash water into the washing machine after the draining wash water, and re-draining the wash water to the outside of the washing machine after the supplying wash water.
    Type: Grant
    Filed: May 5, 2009
    Date of Patent: April 7, 2015
    Assignee: Daewoo Electronics Corporation
    Inventor: Jao Bang Kim
  • Patent number: 8966944
    Abstract: A laundry machine and a control method thereof are provided in which laundering ability may be improved while also improving efficiency and noise/vibration. The laundry machine employs a plurality of drum motions by varying drum rotational speed, drum rotational direction, and drum starting and stopping point, to provide different motion of laundry items in the drum.
    Type: Grant
    Filed: March 15, 2012
    Date of Patent: March 3, 2015
    Assignee: LG Electronics Inc.
    Inventors: In Ho Cho, Hyung Yong Kim, Eun Jin Park, Ig Geun Kwon, Sang Il Hwang, Han Su Jung, Kyung Chul Woo, Byung Keol Choi, Myong Hun Im, Soo Young Oh, Moon Hee Hong, Woo Young Kim, Sang Heon Lee
  • Patent number: 8938996
    Abstract: A treatment agent metering information evaluator of a washing machine includes a reader that reads portion-wise metering information from an information carrier of a storage container that is in close proximity to the reader, a controller that receives the portion-wise metering information from the reader, a meter that meters portions of treatment agent from the storage container into a treatment process of a washing treatment program, and storage that stores empirical information about experiences of the use of the treatment agent during the treatment process for subsequent application of the treatment agent. The reader includes a transmitter for transmitting the empirical information.
    Type: Grant
    Filed: September 9, 2008
    Date of Patent: January 27, 2015
    Assignee: BSH Bosch und Siemens Hausgerate GmbH
    Inventors: Robby Reinholz, Ingo Schulze
  • Publication number: 20150020318
    Abstract: The present invention relates to a washing machine having a shortened washing time and a method of controlling the washing machine. A method of controlling a washing machine according to an exemplary embodiment of the present invention includes: a water supply step of supplying washing water into a tub; a steam step of spraying steam into a drum disposed in the tub; and a centrifugal washing step of circulating the washing water in the tub and of rotating the drum such that laundry attachs to the drum.
    Type: Application
    Filed: July 17, 2014
    Publication date: January 22, 2015
    Inventors: Bosung SEO, Myunghun IM, Sooyoung OH, Changoh KIM
  • Patent number: 8857222
    Abstract: A washing machine including a vibration reduction member formed in a stator is provided. Therefore, when a motor rotates according to operation of the washing machine, delivery of a vibration due to a repulsive force of the stator to a bearing housing can be efficiently reduced. Further, a vibration of a tub fastened to the bearing housing due to the vibration is prevented and noise due to the vibration of the tub is reduced.
    Type: Grant
    Filed: April 27, 2009
    Date of Patent: October 14, 2014
    Assignee: LG Electronics Inc.
    Inventor: Kyung Seop Hong
  • Patent number: 8844327
    Abstract: A laundry machine and a control method thereof are provided in which laundering ability may be improved while also improving efficiency and noise/vibration. The laundry machine employs a plurality of drum motions by varying drum rotational speed, drum rotational direction, and drum starting and stopping point, to provide different motion of laundry items in the drum.
    Type: Grant
    Filed: March 15, 2012
    Date of Patent: September 30, 2014
    Assignee: LG Electronics Inc.
    Inventors: In Ho Cho, Hyung Yong Kim, Eun Jin Park, Ig Geun Kwon, Sang Il Hwang, Han Su Jung, Kyung Chul Woo, Byung Keol Choi, Myong Hun Im, Soo Young Oh, Moon Hee Hong, Woo Young Kim, Sang Heon Lee
  • Publication number: 20140283561
    Abstract: The present invention provides a method of dispensing a plurality of treating compositions into a multistage automatic washing machine, as well as a dispensing device comprising an associated reservoir for collection of wash liquor and at least two chambers containing a treating composition. Said chambers are activated in response to an input from a sensor.
    Type: Application
    Filed: November 22, 2012
    Publication date: September 25, 2014
    Applicant: Reckitt & Colman (Overseas) Limited
    Inventors: Shauna McKenna, Edmund Pedley, David Thomas, John Wasonga
  • Patent number: 8764909
    Abstract: A water-conducting appliance, including a compartment for receiving items therein for washing; and a cleaning agent dosing system having a dosing device for dosing at least one cleaning agent, in particular a liquid cleaning agent, into the washing compartment, the dosing device including a dosing chamber for holding a cleaning agent, an outlet, a gate for opening and closing the dosing chamber, and an actuator system for actuating the gate to move between an opening position and a closing position, the actuator system including transfer means operably connected to the gate such that a predetermined movement of the transfer means moves the gate, opening means for moving the transfer means in a first direction operable to open the gate, and return means for moving the transfer means in a second direction to close the gate.
    Type: Grant
    Filed: August 29, 2007
    Date of Patent: July 1, 2014
    Assignee: BSH Bosch und Siemens Hausgeraete GmbH
    Inventors: Egbert Classen, Helmut Jerg
  • Patent number: 8739580
    Abstract: A pulley electric motor for a washing machine, comprising a stator, a rotor, electronic power circuitry for actuating the rotor, and electronic control circuitry for controlling both the electronic power circuitry to control movement of the rotor and a discharge electric pump of the washing machine. An actuation system for a washing machine is also described, comprising a pulley electric motor for the actuation of a washing drum and a discharge electric pump for discharging water, controlled by the electronic control circuitry, the pulley electric motor equipped with electronic control circuitry which also controls the discharge electric pump. Also described is a washing machine comprising a housing body for a rotary washing drum, a pulley electric motor connected to the drum through a kinematic belt/pulley coupling, a discharge electric pump, and electronic control circuitry for controlling the pulley electric motor. The electronic control circuitry also controls the discharge electric pump.
    Type: Grant
    Filed: June 2, 2009
    Date of Patent: June 3, 2014
    Assignee: Askoll Holding S.r.l.
    Inventor: Elio Marioni
  • Patent number: 8713736
    Abstract: A laundry machine and a control method thereof are provided in which laundering ability may be improved while also improving efficiency and noise/vibration. The laundry machine employs a plurality of drum motions by varying drum rotational speed, drum rotational direction, and drum starting and stopping point, to provide different motion of laundry items in the drum.
    Type: Grant
    Filed: March 15, 2012
    Date of Patent: May 6, 2014
    Assignee: LG Electronics Inc.
    Inventors: In Ho Cho, Hyung Yong Kim, Eun Jin Park, Ig Geun Kwon, Sang Il Hwang, Han Su Jung, Kyung Chul Woo, Byung Keol Choi, Myong Hun Im, Soo Young Oh, Moon Hee Hong, Woo Young Kim, Sang Heon Lee
  • Patent number: 8621894
    Abstract: A washing machine including a rotational drum into which laundry is input, a water tub to perform a washing operation using bubbles, a water supply device to supply water, a detergent liquid supply device to supply detergent liquid, an air supply device to supply air required for the generation of the bubbles, and a controller to control the water supply device and the detergent liquid supply device to supply the water and the detergent liquid into a space between the rotational drum and the tub, to control the air supply device to generate the bubbles by supplying air to detergent water as a mixture of the water and the detergent liquid, to supply the bubbles into the laundry, and to perform the washing operation using the bubbles.
    Type: Grant
    Filed: October 19, 2009
    Date of Patent: January 7, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seong Min Oak, Hyun Sook Kim, Sung Hoon Kim
  • Patent number: 8601625
    Abstract: A washing machine includes a program controller for controlling a program sequence, a drum rotatably supported in a tub, a liquor drain system on a floor of the tub, a liquor drain pump, a drive motor for driving the drum, a heater, a sensor for determining an amount of liquid or of suds in the tub that sense a hydrostatic pressure, a time gradient of the hydrostatic pressure, and/or a guide value in the tub or the drum, and a switch for rotating and stopping the drum and for increasing the speed of the drum if the hydrostatic pressure is less than a predetermined value and for decreasing the speed of the drum if the hydrostatic pressure is more than another predetermined value.
    Type: Grant
    Filed: July 9, 2008
    Date of Patent: December 10, 2013
    Assignee: BSH Bosch und Siemens Hausgeraete GmbH
    Inventor: Harald Moschütz
  • Patent number: 8595875
    Abstract: A laundry treatment machine and a washing method therefor are provided. The laundry treatment machine may discharge fluid by driving a drainage device, while rotating a drum during a time period between a plurality of rinsing operations. The rotation speed of the drum may be controlled to be lower than a reference speed, which is the rotation speed of the drum when laundry is not uniformly distributed in the drum, and thus, eccentricity of the laundry is high.
    Type: Grant
    Filed: July 28, 2009
    Date of Patent: December 3, 2013
    Assignee: LG Electronics Inc.
    Inventors: Myong Hum Im, Byung Keol Choi, Woo Young Kim, Kyung Chul Woo, Kyeong Hwan Kim, Han Gil Park, Soo Young Oh
  • Patent number: 8578533
    Abstract: A laundry machine and a control method thereof are provided in which laundering ability may be improved while also improving efficiency and noise/vibration. The laundry machine employs a plurality of drum motions by varying drum rotational speed, drum rotational direction, and drum starting and stopping point, to provide different motion of laundry items in the drum.
    Type: Grant
    Filed: March 15, 2012
    Date of Patent: November 12, 2013
    Assignee: LG Electronics Inc.
    Inventors: In Ho Cho, Hyung Yong Kim, Eun Jin Park, Ig Geun Kwon, Sang Il Hwang, Han Su Jung, Kyung Chul Woo, Byung Keol Choi, Myong Hun Im, Soo Young Oh, Moon Hee Hong, Woo Young Kim, Sang Heon Lee
  • Patent number: 8557048
    Abstract: A method for controlling a filling process of a water-bearing household appliance. The method includes opening a locking arrangement to fill the water-bearing household appliance with water, wherein the locking arrangement is controlled by the water-bearing household appliance; monitoring a fill sensor that detects the water flowing into the water-bearing household appliance; activating a pump to convey the water that flowed into the water-bearing household appliance as a result of the absence of at least one signal from the fill sensor; and analyzing a performance characteristic of the pump.
    Type: Grant
    Filed: April 8, 2009
    Date of Patent: October 15, 2013
    Assignee: BSH Bosch und Siemens Hausgeraete GmbH
    Inventors: Bernd Hesterberg, Karlheinz Rehm, Michael Rosenbauer
  • Patent number: 8533883
    Abstract: A laundry machine and a control method thereof are provided in which laundering ability may be improved while also improving efficiency and noise/vibration. The laundry machine employs a plurality of drum motions by varying drum rotational speed, drum rotational direction, and drum starting and stopping point, to provide different motion of laundry items in the drum.
    Type: Grant
    Filed: March 15, 2012
    Date of Patent: September 17, 2013
    Assignee: LG Electronics Inc.
    Inventors: In Ho Cho, Hyung Yong Kim, Eun Jin Park, Ig Geun Kwon, Sang Il Hwang, Han Su Jung, Kyung Chul Woo, Byung Keol Choi, Myong Hun Im, Soo Young Oh, Moon Hee Hong, Woo Young Kim, Sang Heon Lee
  • Patent number: 8490439
    Abstract: In a laundry washer, relatively short bursts of operation of a recirculation pump are coordinated with corresponding brief intervals of tub rotation during the initial fill periods. The aim is to thoroughly wet the clothes early in each wash/rinse phase to thus improve the wash/rinse effectiveness, while also avoiding excessive suds formation. Following the initial fill periods and during regular wash/rinse agitations, the recirculation system may also be employed to “recharge” the laundry load with detergent that has settled in the bottom of the tub. In a further aspect of the invention, some or all of the conventional intermediate spin extractions are omitted. In this manner, more water is carried over in the clothes from one wash/rinse cycle to the next. An intermediate spin of reduced speed (RPM) and duration as compared to typical normal intermediate spins may be employed between the wash phase and first rinse.
    Type: Grant
    Filed: April 18, 2012
    Date of Patent: July 23, 2013
    Assignee: Electrolux Home Products, Inc.
    Inventors: Chris H. Hill, Jason D. Miller
  • Publication number: 20130081431
    Abstract: In a laundry washer, relatively short bursts of operation of a recirculation pump are coordinated with corresponding brief intervals of tub rotation during the initial fill periods. The aim is to thoroughly wet the clothes early in each wash/rinse phase to thus improve the wash/rinse effectiveness, while also avoiding excessive suds formation. Following the initial fill periods and during regular wash/rinse agitations, the recirculation system may also be employed to “recharge” the laundry load with detergent that has settled in the bottom of the tub. In a further aspect of the invention, some or all of the conventional intermediate spin extractions are omitted. In this manner, more water is carried over in the clothes from one wash/rinse cycle to the next. An intermediate spin of reduced speed (RPM) and duration as compared to typical normal intermediate spins may be employed between the wash phase and first rinse.
    Type: Application
    Filed: April 18, 2012
    Publication date: April 4, 2013
    Applicant: ELECTROLUX HOME PRODUCTS, INC.
    Inventors: Chris H. HILL, Jason D. MILLER
  • Publication number: 20130049969
    Abstract: A method and apparatus for sensing the level of fluid present in a dispenser, such as a detergent or fabric softener dispenser, of a washing machine appliance and to detecting an out of balance condition for such appliance is provided. A pressure sensor is used to determine the level of fluid present and to provide indications of the same at various levels of use of the fluid. One or more pressure sensors can also be used to detect an out of balance condition when the appliance is a washing machine.
    Type: Application
    Filed: August 23, 2011
    Publication date: February 28, 2013
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Jerrod Aaron Kappler, Richard Dean Suel, II, Mark A. Didat, Alexander Boris Leibman
  • Patent number: 8336343
    Abstract: An automatic washing machine includes a remaining water discharging passage to drain remaining water from a pump case by connecting a drain line with an inner part of the pump case. The washing machine includes a water tub; a pump case; a circulation pump coupled with the pump case that circulates washing water contained in the water tub; a drain line to drain the washing water contained in the water tub; and a remaining water discharge passage connecting an inner part of the pump case with the drain line to discharge water remaining in the pump case.
    Type: Grant
    Filed: September 1, 2009
    Date of Patent: December 25, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seung Hwan Chung, Myung Sun Kang
  • Patent number: 8332980
    Abstract: An appliance having a drain pump with a motor adapted to be supplied with an alternating supply voltage. A controller is adapted to monitor a current value supplied to the motor and to control the frequency of the supply voltage among a plurality of predetermined frequencies when the drain pump is operated in a full drainage mode. A storage medium associated with the controller stores for each predetermined frequency a maximum current value, a minimum current value and an optimal current value. The controller may stores computer implemented instructions for (a) determining if the monitored current value is between the maximum current value and the minimum current value, (b) comparing the monitored current value with the optimal current value, and (c) adjusting the frequency of the alternating supply voltage among the plurality of predetermined frequencies to cause the monitored current to more closely match the optimal current value.
    Type: Grant
    Filed: May 3, 2010
    Date of Patent: December 18, 2012
    Assignee: Coprecitec, S.L.
    Inventors: Rodrigo Orue Orue, Javier Valentin Errasti Uriarte, Fernando Sales Villalabeitia
  • Patent number: 8302432
    Abstract: A washing machine having an improved structure in circulation and drain of washing water are disclosed. The washing machine includes a main body, a water tub which is disposed in the main body, a drain line in which washing water drained from the water tub flows, a circulation line in which washing water returning to the water tub flows, a discharge line in which washing water discharged out of the main body flows, a pump which flows the washing water such that the washing water drained from the water tub returns to the water tub or is discharged out of the main body, a flow path switching device having a single reciprocating member which opens and closes the circulation line or the discharge line, and an operating unit which operates the flow path switching device.
    Type: Grant
    Filed: February 11, 2009
    Date of Patent: November 6, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seung Hwan Chung, Seung Kwun Ahn
  • Publication number: 20120266388
    Abstract: The capture and reuse of the effluent, or grey water, from the rinse cycle of a washing machine appliance is provided. A determination is made regarding whether fabric softener is present in the effluent. If fabric softener is present, then the effluent can be reused during a rinse cycle of the washing machine so as to avoid undesirable interaction between the fabric softener in the effluent and the detergent of a rinse cycle.
    Type: Application
    Filed: April 20, 2011
    Publication date: October 25, 2012
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: James Quentin Pollett, Matthew David Mersch
  • Patent number: 8186182
    Abstract: A surge fill apparatus and method for a top load washing machine is disclosed. A top load washing machine includes a cabinet, a tub positioned within the cabinet, and a basket for receiving a wash load rotatably supported within the tub. The washing machine further includes a reservoir in fluid communication with the tub. The reservoir has the capacity to store a volume of wash fluid. The reservoir releases the volume of wash fluid into basket when the volume of wash fluid in the reservoir reaches a threshold level. In this manner, the apparatus and method of the present disclosure provides for a surge of wash fluid to be provided to the top portion of a wash load such that the top portion of the wash load can be cleaned and rinsed more efficiently.
    Type: Grant
    Filed: November 12, 2010
    Date of Patent: May 29, 2012
    Assignee: General Electric Company
    Inventor: Kevin Farrelly Nolan
  • Publication number: 20120118023
    Abstract: This invention is a vertical machine for washing and wringing clothes by mean of a closed pumping circuit which supplies the washing or centrifuging system. The washing system uses a special eductor which produces a cavitation effect above the clothes, combined with a rotary washing system which produces the paused circulation of the clothes; the rotation of the washing system is produced by the same water flow. The centrifuging is made in the inner tub impelling its rotation by means of a turbine, thus the tub rotates over the virtual axis which passes through the center of gravity thereof and the clothes for being wringed, furthermore is used a special annular chamber for auto-balancing. The rotation of the tub over the virtual axis is achieved making float the inner tub by means of the special supports which combine the speed components of any point of the tub.
    Type: Application
    Filed: December 18, 2009
    Publication date: May 17, 2012
    Inventors: Blanca Estela Guerrero Lara, Salvador Virgilio Guerrero Parra, Gilberto Manuel Guerrero Parra