With Temperature Modification Patents (Class 68/12.22)
  • Patent number: 11390975
    Abstract: A washing and drying machine includes a cabinet, a tub disposed inside the cabinet, a condensation duct connected to the tub to condense moisture in air introduced from the inside of the tub, and a drying duct connected to the condensation duct to heat the air introduced into the condensation duct and supply the heated air back into the tub, wherein the condensation duct includes a housing, an inlet disposed at a lower portion of the housing and connected to the tub, an outlet disposed at an upper portion of the housing and connected to the drying duct, a supply nozzle configured to supply condensation water inside the housing, and a rib disposed adjacent to the inlet, wherein the rib includes a gathering portion configured to collect at least a part of the condensation water, and wherein the condensation water collected in the gathering portion falls to the inlet side.
    Type: Grant
    Filed: April 20, 2020
    Date of Patent: July 19, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jungyoon Hahm, Donggeun Park, Dong-Pil Seo
  • Patent number: 11369247
    Abstract: A conveyor type ware washing machine uses a heat pump to reduce exhaust heat and to heat incoming water. A modulating valve is used to control incoming water flow through a heat exchanger of the heat pump. Processing circuitry automatically dynamically adjusts the modulating valve between a plurality of open states based on the sensed refrigerant head pressure of the heat pump, so that the refrigerant head pressure is maintained in a predefined range. The ware washing machine is efficient, and reduces the amount of heat exhausted to ambient. Related methods are also disclosed.
    Type: Grant
    Filed: July 29, 2020
    Date of Patent: June 28, 2022
    Assignee: Ali Group North America Corporation
    Inventors: Kenneth Ward Stevens, James Lee Davis
  • Patent number: 10526740
    Abstract: A self-cleaning drum washing machine, comprises a coaxial drum and outer tub. Cleaning particles are arranged between the drum and the outer tub. Structures between the drum and the outer tub opposite to each other are smooth. A flange is fixedly connected to the bottom of the drum; the outer portion of the flange has a smooth structure or an enclosed cavity is arranged on the outer portion of the drum bottom; the flange is arranged in the cavity; a shaft hole is arranged at the center of the cavity; and a drum shaft sticks into the cavity through the shaft hole and is connected to the flange. The smooth structures go against the attachment of dirt, so that the outer wall of the drum and the inner wall of the outer tub can be conveniently cleaned by the cleaning particles.
    Type: Grant
    Filed: November 14, 2014
    Date of Patent: January 7, 2020
    Assignee: QINGDAO HAIER DRUM WASHING MACHINE CO., LTD.
    Inventors: Peishi Lv, Sheng Xu, Zhenxing Huang, Xiuwen Peng
  • Publication number: 20150121967
    Abstract: A drum type washing machine includes a tub configured to contain water, a rotatable drum in the tub configured to receive laundry, a water supply pipe configured to supply washing water to the tub, a water supply stand-by box connected to the water supply pipe, and a heating device in the water supply stand-by box configured to increase the temperature of the water in the water supply stand-by box.
    Type: Application
    Filed: December 17, 2013
    Publication date: May 7, 2015
    Applicant: Dongbu Daewoo Electronics Corporation
    Inventor: Young Bae LEE
  • Patent number: 8863559
    Abstract: A method for washing laundry in a program-controlled domestic laundry-care appliance including the steps of heating washing liquid present in the tub and heating the washing liquid to a specific washing temperature set as a function of determined parameter values that are specific to the laundry being washed and/or the appliance.
    Type: Grant
    Filed: December 19, 2007
    Date of Patent: October 21, 2014
    Assignee: BSH Bosch und Siemens Hausgeräte GmbH
    Inventors: Gundula Czyzewski, Ingo Schulze, Stephan Sommer, Cornelia Witt
  • Patent number: 8844081
    Abstract: A method of controlling the opening of a door of a laundry treatment machine is provided. According to the method, when a door opening signal is detected during an operation of a laundry treatment machine, the temperature and the water level in a tub are reduced, and then the door of the laundry treatment machine is opened. Thus, it is possible to prevent a user from being burned by hot air or water in the tub and thus to improve the safety of a laundry treatment machine. Also, it is possible to enhance the convenience of a laundry treatment machine by allowing a user to open the door of the laundry treatment machine during an operation of the laundry treatment machine and to additionally put laundry in the laundry treatment machine. In addition, according to the method, wash water is discharged from a tub according to the temperature and the water level in the tub, and then cold water is supplied into the tub.
    Type: Grant
    Filed: August 9, 2007
    Date of Patent: September 30, 2014
    Assignee: LG Electronics Inc.
    Inventor: Young Hoon Joo
  • Patent number: 8778089
    Abstract: In the dishwasher and the control method therefor of the present invention, the turbidity of washing water is measured and, if it is decided that the level of dirtiness of the tableware is low, then the time over which a heater operates during the washing routine is reduced and, instead, the time over which the heater operates during the rinsing routine is increased. This is advantageous in that it can improve the performance of the drying which is carried out after the rinsing routine. Further, if it is decided that the level of dirtiness of the tableware is high, then the time over which the heater operates during the washing routine is increased and the time over which the heater operates during the rinsing routine is reduced. This is advantageous in that the washing performance can be improved while the overall heater operating time can be maintained.
    Type: Grant
    Filed: November 10, 2009
    Date of Patent: July 15, 2014
    Assignee: LG Electronics Inc.
    Inventors: Nung Seo Park, Gyeong Ho Moon
  • Publication number: 20140109621
    Abstract: A washer for supplying magnetized water includes a cabinet; a magnetization unit in the cabinet, generating a magnetic field; and a guide unit connected to the magnetization unit, guiding the wash water discharged from the magnetization unit. The magnetization unit includes a housing having a water flow channel through which wash water passes; a hot water supply nozzle connected to one side of the housing, having a hot water supply channel communicating with the water flow channel; and a cold water supply nozzle connected to the one side of the housing, having a cold water supply channel communicating with the water flow channel and separate from the hot water supply channel.
    Type: Application
    Filed: August 10, 2012
    Publication date: April 24, 2014
    Inventor: Ga Young Min
  • Patent number: 8459066
    Abstract: An input device of a washing machine and a control method of the same are disclosed. An input device of a washing machine includes an operation part generating a plurality of identical signals for washing course designation, a control part controlling one of a plurality of preset washing courses to be designated sequentially according to a predetermined order if the signal is generated by the operation part and a display part displaying the washing course designated by the control part. A control method of an input device of a washing machine for washing course selection includes generating a plurality of identical signals by a user's operation, designating one of a plurality of preset washing courses separately according to a predetermined order whenever the signal is generate, and displaying the designated washing course.
    Type: Grant
    Filed: December 6, 2012
    Date of Patent: June 11, 2013
    Assignee: LG Electronics Inc.
    Inventors: Myung Shik Kim, Jong Hee Han, Ho Il Jeon
  • Patent number: 8366012
    Abstract: An automatic temperature control for a washing machine or the like may adopt in a first embodiment a single triac switched between a hot-water valve and cold-water valve by mechanical switch elements to provide for a range of temperature control via a microprocessor receiving a temperature command input. In a second embodiment two triacs may be used to permit a range of temperature controls to be effected by voltage signals generated by low-voltage low current switches implemented on an integrated circuit board.
    Type: Grant
    Filed: November 11, 2010
    Date of Patent: February 5, 2013
    Assignee: Illinois Tool Works Inc.
    Inventors: Eric K. Larson, David C. Gill, Juan J. Barrena, Mark A. Romo
  • Patent number: 8347657
    Abstract: An input device of a washing machine and a control method of the same are disclosed. An input device of a washing machine includes an operation part generating a plurality of identical signals for washing course designation, a control part controlling one of a plurality of preset washing courses to be designated sequentially according to a predetermined order if the signal is generated by the operation part and a display part displaying the washing course designated by the control part. A control method of an input device of a washing machine for washing course selection includes generating a plurality of identical signals by a user's operation, designating one of a plurality of preset washing courses separately according to a predetermined order whenever the signal is generate, and displaying the designated washing course.
    Type: Grant
    Filed: February 10, 2009
    Date of Patent: January 8, 2013
    Assignee: LG Electronics Inc.
    Inventors: Myung Shik Kim, Jong Hee Han, Ho Il Jeon
  • Patent number: 8291731
    Abstract: A washing machine is disclosed. The washing machine has an improved structure adapted to generate steam in order to improve washing effect and enable sterilization of laundry using the steam. The washing machine comprises a tub to contain water, a heater installed in the tub, and a controller to control the heater to heat the water contained in the tub and to generate steam.
    Type: Grant
    Filed: March 31, 2006
    Date of Patent: October 23, 2012
    Assignee: LG Electronics Inc.
    Inventors: Seong Hai Jeong, Hung Myong Cho
  • Patent number: 8181359
    Abstract: A laundry machine is disclosed. The disclosed laundry machine includes a drum rotatably provided in a cabinet; a substance supply device generating water based substance and supplying the water based substance to the drum; a water supply device that is movably provided in the cabinet and supplies water to the substance supply device; and a first stopper confining a position of the water supply device when the water supply device is pulled out from the cabinet.
    Type: Grant
    Filed: April 24, 2008
    Date of Patent: May 22, 2012
    Assignee: LG Electronics Inc.
    Inventors: Sang Hun Bae, Dong Geun Lee, Yeon Sik Choi, Ju Han Yoon
  • Patent number: 7946140
    Abstract: A washing machine using steam and a method for controlling the same is disclosed. The washing machine with a steam generator (100) selectively supplying steam inot a drum (30) according to the present invention includes a course select part (420) for a user to select a wash course, a steam select part (430) for a user to select whether steam washing is operated and a controller (440) for controlling the steam generator (100) based on a wash course selected from the course select part (420) (an inputted wash course) and a signal selected from the steam select part (430). The present invention has an advantageous effect that convenience is improved for a user to use the washing machine using steam as well as washing performance is improved, because disadvantages due to malfunctions of a steam generator are prevented.
    Type: Grant
    Filed: August 21, 2009
    Date of Patent: May 24, 2011
    Assignee: LG Electronics Inc.
    Inventors: Seog Kyu Park, In Geun Ahn
  • Patent number: 7886982
    Abstract: An automatic temperature control for a washing machine or the like may adopt in a first embodiment a single triac switched between a hot-water valve and cold-water valve by mechanical switch elements to provide for a range of temperature control via a microprocessor receiving a temperature command input. In a second embodiment two triacs may be used to permit a range of temperature controls to be effected by voltage signals generated by low-voltage low current switches implemented on an integrated circuit board.
    Type: Grant
    Filed: June 16, 2008
    Date of Patent: February 15, 2011
    Assignee: Illimois Tool Works, Inc.
    Inventors: Eric K. Larson, David C. Gill, Juan J. Barrena, Mark A. Romo
  • Patent number: 7854152
    Abstract: A steam generator for a washing machine comprises: a hermetic container provided with a water supply port for supplying water and a steam exhaustion port for exhausting steam; a heater arranged in the hermetic container for heating water supplied into the hermetic container; and a drain unit for draining residual water inside of the hermetic container outwardly. According to this, residual water inside of the steam generator is outwardly exhausted thus to maintain cleanness of the steam generator. Also, the drain unit using a siphon principle is installed thus to naturally exhaust residual water inside of the steam generator without an additional valve device, thereby reducing a fabrication cost.
    Type: Grant
    Filed: January 15, 2004
    Date of Patent: December 21, 2010
    Assignee: LG Electronics Inc.
    Inventors: Soo Young Oh, Kyung Chul Woo, Jin Woong Kim, Si Moon Jeon
  • Patent number: 7797777
    Abstract: A washing method in a steam injection type washing machine in which wash water is heated to generate high temperature and high-pressure steam while passing through the steam supply unit in the wash or rinse cycle, and the generated steam is injected into the wash tub at the top of the wash tub. Accordingly, it is possible to rapidly achieve the wetting of clothes with wash water while achieving an enhancement in sterilization and washing performances. In addition, consumption of water and electrical energy can be reduced.
    Type: Grant
    Filed: March 21, 2007
    Date of Patent: September 21, 2010
    Assignee: LG Electronics Inc.
    Inventors: Jin Woong Kim, Kyung Chul Woo, Soo Young Oh, Si Moon Jeon
  • Patent number: 7743632
    Abstract: A washing method in a steam injection type washing machine in which wash water is heated to generate high temperature and high-pressure steam while passing through the steam supply unit in the wash or rinse cycle, and the generated steam is injected into the wash tub at the top of the wash tub. Accordingly, it is possible to rapidly achieve the wetting of clothes with wash water while achieving an enhancement in sterilization and washing performances. In addition, consumption of water and electrical energy can be reduced.
    Type: Grant
    Filed: March 21, 2007
    Date of Patent: June 29, 2010
    Assignee: LG Electronics Inc.
    Inventors: Jin Woong Kim, Kyung Chul Woo, Soo Young Oh, Si Moon Jeon
  • Patent number: 7725970
    Abstract: A washing machine control system is combined with a working fluid dispensing system and a payment processing system to provide a merged system for automatically providing detergents, bleach, softeners and the like in a pay-as-you-go laundry environment, such as public laundry facilities in Laundromats, dormitories, apartment complexes and the like.
    Type: Grant
    Filed: September 22, 2003
    Date of Patent: June 1, 2010
    Inventors: Robert J. Tuttle, William J. Souza
  • Patent number: 7681418
    Abstract: A fabric treatment appliance comprises a steam generator having a chamber configured to hold water; a supply conduit configured to transport water to the steam generator chamber; a temperature sensor configured to sense a temperature representative of the steam generator chamber at a predetermined water level in the steam generator chamber; and a controller coupled to the temperature sensor and configured to control flow of water through the supply conduit based on the sensed temperature to control the level of water in the steam generator chamber. The disclosure provides methods of water supply control that can employ the temperature sensor.
    Type: Grant
    Filed: August 15, 2006
    Date of Patent: March 23, 2010
    Assignee: Whirlpool Corporation
    Inventors: Nyik Siong Wong, Raveendran Vaidhyanathan, Dengming Peng
  • Patent number: 7647794
    Abstract: A washing machine using steam and a method for controlling the same is disclosed. The washing machine with a steam generator (100) selectively supplying steam into a drum (30) according to the present invention includes a course select part (420) for a user to select a wash course, a steam select part (430) for a user to select whether steam washing is operated and a controller (440) for controlling the steam generator (100) based on a wash course selected from the course select part (420) (an inputted wash course) and a signal selected from the steam select part (430). The present invention has an advantageous effect that convenience is improved for a user to use the washing machine using steam as well as washing performance is improved, because disadvantages due to malfunctions of a steam generator are prevented.
    Type: Grant
    Filed: October 16, 2007
    Date of Patent: January 19, 2010
    Assignee: LG Electronics Inc.
    Inventors: Seog Kyu Park, In Geun Ahn
  • Patent number: 7520145
    Abstract: A washing machine combined with a dryer is provided. In the washing machine combined with a dryer, a tub is provided, a dryer duct is installed outside of the tub to introduce a surrounding air into the tub, a heater is installed in the dryer duct to apply heat to the surrounding air, a temperature sensor is installed in the dryer duct to measure temperature inside the tub or temperature inside the dryer duct, and a dryer fan is installed in the dryer duct to draw in the surrounding air.
    Type: Grant
    Filed: July 18, 2005
    Date of Patent: April 21, 2009
    Assignee: LG Electronics, Inc.
    Inventors: Sog Kie Hong, Young Hwan Park
  • Patent number: 7490491
    Abstract: A washing machine in which the poor heat-resistance laundry is sufficiently wet so that a plurality of water curtain layers are formed at the laundry, thereby preventing the laundry from being stained and damaged when the laundry contacts the steam. According to the present invention, cold water is supplied simultaneously with injection of the steam so that the real temperature of the steam contacting the surfaces of the laundry is lowered, thereby preventing the laundry from being stained and damaged when the laundry contacts the steam.
    Type: Grant
    Filed: July 29, 2004
    Date of Patent: February 17, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Byoung Yull Yang, Hyung Gyoon Kim, Sang Yeon Pyo, Seon-Woo Park, Hye Soon Yang, Seong Min Oak, Seung Ju Choi, Jae-Ryong Park, Hyun Sook Kim
  • Publication number: 20080189874
    Abstract: An apparatus of controlling water supply in a washing machine is provided. The apparatus includes a key-input part, a controller, a heater, and a pulsator. A user inputs a washing condition using the key-input part. The controller controls a washing cycle to be performed according to a washing course selected through the key-input part and controls washing water to be supplied over a multi-step during a water-supply cycle. The heater heats the washing water according to a control signal of the controller. The pulsator performs an agitation motion according to a control signal of the controller. Also, a method of controlling water supply in a washing machine is provided. According to the method, a washing condition is inputted. Washing water is supplied over a multi-step. The heater and the pulsator operate during the water supply. When the water supply is completed, a washing cycle is performed according to a selected course.
    Type: Application
    Filed: June 8, 2005
    Publication date: August 14, 2008
    Inventor: Jong Sun Yoon
  • Patent number: 7406737
    Abstract: A drum type washing machine in which wash water and laundry contained in a rotating tub are heated by steam supplied into the rotating tub, so as to rapidly increase the temperature of the wash water and laundry, thereby being capable of reducing the total wash time while reducing the amount of wash water to be used, and reducing the consumption of energy caused by heating of the wash water.
    Type: Grant
    Filed: May 21, 2004
    Date of Patent: August 5, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Byoung Yull Yang, Hyung Gyoon Kim, Sang Yeon Pyo, Seon-Woo Park, Hye Soon Yang, Seong Min Oak, Seung Ju Choi, Jae-Ryong Park, Hyun Sook Kim
  • Patent number: 7370495
    Abstract: A temperature control for a washing machine that includes a tub and hot and cold water valves is provided. The temperature control includes a first pressure sensor positioned to sense a full fill level in the tub and configured to generate a full fill signal when the tub is full and a second pressure sensor positioned to sense an intermediate fill level, less than full, in the tub and configured to generate an intermediate fill signal when the intermediate fill level is reached. A controller is operatively coupled to the first and second pressure sensors and the hot and cold water valves. The controller is operable to control the valves based on the fill signals from the pressure sensors to control a wash water temperature.
    Type: Grant
    Filed: June 20, 2003
    Date of Patent: May 13, 2008
    Assignee: General Electric Company
    Inventor: Ronald Miles Johnson
  • Patent number: 6845536
    Abstract: Methods and system consistent with the present invention provide an appliance having inlet valves connected to respective supply lines with a control system that senses a temperature of a fluid supplied by a first of the supply lines, associates the first inlet valve connected to the first supply line with one of a plurality of predetermined temperature ranges, one of which includes the sensed temperature of the fluid in first supply line, and activates the first inlet valve upon a request by the appliance for a fluid in the one predetermined temperature range.
    Type: Grant
    Filed: February 20, 2002
    Date of Patent: January 25, 2005
    Assignee: Whirlpool Corporation
    Inventors: Raveendran Vaidhyanathan, Robert R. Williams, Michael A. Dirlam, George Angelov, Edward L. Thies
  • Publication number: 20040255392
    Abstract: A temperature control for a washing machine that includes a tub and hot and cold water valves is provided. The temperature control includes a first pressure sensor positioned to sense a full fill level in the tub and configured to generate a full fill signal when the tub is full and a second pressure sensor positioned to sense an intermediate fill level, less than full, in the tub and configured to generate an intermediate fill signal when the intermediate fill level is reached. A controller is operatively coupled to the first and second pressure sensors and the hot and cold water valves. The controller is operable to control the valves based on the fill signals from the pressure sensors to control a wash water temperature.
    Type: Application
    Filed: June 20, 2003
    Publication date: December 23, 2004
    Inventor: Ronald Miles Johnson
  • Publication number: 20040083770
    Abstract: Washing machine including a housing (10), an outer tub (20) mounted in the housing (10) for storage of washing water, and a heater assembly (100) having a heater (120) designed to be detachably inserted to an inside of the outer tub from an outside of the outer tub for heating the washing water, thereby permitting easy attachment/detachment of the heater.
    Type: Application
    Filed: August 26, 2003
    Publication date: May 6, 2004
    Inventor: Jae Chul Lyu
  • Publication number: 20040019977
    Abstract: The invention provides a method of operating a laundry appliance (10) comprising an outer casing (12) and a drum (50) rotatably mounted within the outer casing (12), the drum (50) having at least two rotatable portions (60, 70) which are capable of being rotated in either a synchronized mode or a non-synchronized mode, the method comprising the steps of: (a) introducing water to the interior of the drum (50); (b) heating the water to a desired temperature; (c) rotating the drum (50) to effect a washing action; and (d) spinning the drum (50) at a relatively high speed so as to remove water therefrom. In one aspect, the drum (50) is rotated in the non-synchronized mode either during or immediately after the step of introducing water to the interior of the drum (50). This helps to distribute the washing liquid throughout the wash load.
    Type: Application
    Filed: March 11, 2003
    Publication date: February 5, 2004
    Inventors: Guy Austin Goddard, Malcolm John Hird, David Ions
  • Patent number: 6553594
    Abstract: A washing machine includes a control system which regulates a heater based on selected cycle operations and selected cycle operations based on heater related parameters. User cycle selections, along with sensed operating parameters including the level and temperature of a washing medium, are used to control the activation state of the heater to control the washing medium to within a preset range of a target temperature. Preferably, the heater is de-activated after a predetermined period of activation has been reached, whenever a door of the washing machine is opened, and during certain selected operating cycle portions, including a bleach fill and latter time cycle portions.
    Type: Grant
    Filed: September 20, 2001
    Date of Patent: April 29, 2003
    Assignee: Maytag Corporation
    Inventors: John F. Broker, Kimberly J. Hood, Brett C. Oleson, Evan R. Vande Haar, Stephen J. McCauley
  • Patent number: 6553595
    Abstract: A vertical axis clothes washing appliance is configured to meet predetermined energy and water usage factors by establishing a balance between water temperature, water level, and wash performance parameters. In accordance with the overall invention, additional controls for the washing machine enable an energy saving hot wash cycle to be established, with this wash cycle being designed to automatically establish a wash temperature which is intermediate warm and hot water temperature settings.
    Type: Grant
    Filed: November 21, 2001
    Date of Patent: April 29, 2003
    Assignee: Maytag Corporation
    Inventors: Jordan S. Bruntz, Brent A. England, Steven J. Sousek
  • Publication number: 20030051296
    Abstract: A washing machine includes a control system which regulates a heater based on selected cycle operations and selected cycle operations based on heater related parameters. User cycle selections, along with sensed operating parameters including the level and temperature of a washing medium, are used to control the activation state of the heater to control the washing medium to within a preset range of a target temperature. Preferably, the heater is de-activated after a predetermined period of activation has been reached, whenever a door of the washing machine is opened, and during certain selected operating cycle portions, including a bleach fill and latter time cycle portions.
    Type: Application
    Filed: September 20, 2001
    Publication date: March 20, 2003
    Applicant: Maytag Corporation
    Inventors: John F. Broker, Kimberly J. Hood, Brett C. Oleson, Evan R. Vande Haar, Stephen J. McCauley
  • Patent number: 6499321
    Abstract: A laundry machine has a wash enclosure to which a supply of water is admitted through a hot water valve and a cold water valve. A temperature sensor senses the temperature of the combined water flow from the hot and cold valves or the temperature of the water collected in the water enclosure. The hot and cold water valves are preferably controlled in accordance with a programme executed on a microprocessor. In a wash operation the controller opens the hot water valve and monitors the temperature indicated by the temperature sensor. The controller only opens the cold valve once the sensed temperature has reached or exceeded a threshold temperature. The effect of the cold water contained in the hot water pipes of a household water supply on wash temperature or wash volume is reduced.
    Type: Grant
    Filed: December 8, 2000
    Date of Patent: December 31, 2002
    Assignee: Fisher & Paykel Limited
    Inventors: David Charles Rhodes, Adam John Darby
  • Patent number: 6327730
    Abstract: An adjustable liquid temperature control system for a washing machine regulates the temperature of washing liquid established in a washing tub in an accurate and economical manner without the use of a dedicated temperature sensor. Preferably, numerous default mixing ratios for hot and cold fill water are preset in the washing machine. The system is designed to enable the washing machine operator to adjust one or more of the default mixing ratios in order to selectively fine tune the system. In accordance with one embodiment, the operator can directly input a desired mixing ratio. In another embodiment, the operator can indirectly establish a mixing ratio by entering a desired washing temperature.
    Type: Grant
    Filed: December 8, 1999
    Date of Patent: December 11, 2001
    Assignee: Maytag Corporation
    Inventor: Mitchell N. Corbett