Patents by Inventor Andrew J. Leitert

Andrew J. Leitert 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).

  • Method to determine fabric type in a laundry treating appliance using motor current signature during agitation
    Patent number: 9945060
    Abstract: Disclosed is a method of operating a laundry treating appliance having a treating chamber that receives a laundry load for treatment according to a cycle of operation. The method includes determining the size of the laundry load in the treating chamber; supplying a predetermined amount of liquid to the treating chamber based on the determined load size; applying mechanical energy to the laundry treating chamber by driving a clothes mover with an electric motor; determining a difference between an in-rush current to the electric motor and a steady-state current of the electric motor during the applying of the mechanical energy; and determining a laundry load type of the laundry load based on the determined difference.
    Type: Grant
    Filed: January 19, 2012
    Date of Patent: April 17, 2018
    Assignee: Whirlpool Corporation
    Inventors: Hirak Chanda, Kaustav Ghosh, Andrew J. Leitert, Karl David Mcallister, Amy L. Rapson, Jon D. Strait, Yingqin Yuan
  • Method to detect the type of a load in a laundry treating appliance
    Patent number: 9551103
    Abstract: A method of determining load type in a laundry treating appliance having a treating chamber for receiving laundry, a rotatable laundry mover, and a motor operably coupled to the rotatable laundry mover includes steps to apply a perturbation force to the laundry in the treating chamber by rotating the laundry mover with the motor; determine the response of the motor torque to the perturbation force during the rotating of the laundry mover; and determine a load type based on the determined response.
    Type: Grant
    Filed: August 13, 2013
    Date of Patent: January 24, 2017
    Assignee: Whirlpool Corporation
    Inventors: David P. Goshgarian, Andrew J. Leitert, Karl David McAllister, Amy L. Rapson, Yingqin Yuan
  • Random tumbling washing machine wash chamber for improving cleaning while minimizing mechanical damage to clothes
    Patent number: 9523170
    Abstract: Methods and apparatuses consistent with the present invention provide for improved cleaning while minimizing mechanical damage to clothes in automatic washer cycles using time-varying wash chamber oscillations. An automatic washer has a wash chamber with a central axis and is rotatable about the central axis. Items are loaded into the wash chamber. Wash liquid is supplied into the wash chamber. The wash chamber is oscillated about the central axis by time-varying oscillations.
    Type: Grant
    Filed: October 21, 2013
    Date of Patent: December 20, 2016
    Assignee: Whirlpool Corporation
    Inventors: Karl David McAllister, Andrew J. Leitert, Daniel C. Conrad
  • Method of determining fabric type of a laundry load in a laundry treating appliance
    Patent number: 9243987
    Abstract: A method of determining a fabric type for a laundry load can include comparing the density of the laundry load in a first wetted state, which may be a dry state or a partially saturated state, to the density of the laundry load in a second wetted state, which may be a partially saturated, fully saturated, or beyond fully saturated state, and determining a fabric type based on the comparison.
    Type: Grant
    Filed: May 1, 2013
    Date of Patent: January 26, 2016
    Assignee: Whirlpool Corporation
    Inventors: Hirak Chanda, Kaustav Ghosh, Andrew J. Leitert, Karl David McAllister, Amy L. Rapson, Jon D. Strait, Yingqin Yuan
  • METHOD TO DETECT THE TYPE OF A LOAD IN A LAUNDRY TREATING APPLIANCE
    Publication number: 20150047128
    Abstract: A method of determining load type in a laundry treating appliance having a treating chamber for receiving laundry, a rotatable laundry mover, and a motor operably coupled to the rotatable laundry mover includes steps to apply a perturbation force to the laundry in the treating chamber by rotating the laundry mover with the motor; determine the response of the motor torque to the perturbation force during the rotating of the laundry mover; and determine a load type based on the determined response.
    Type: Application
    Filed: August 13, 2013
    Publication date: February 19, 2015
    Applicant: Whirlpool Corporation
    Inventors: DAVID P. GOSHGARIAN, ANDREW J. LEITERT, KARL DAVID MCALLISTER, AMY L. RAPSON, YINGQIN YUAN
  • METHOD OF DETERMINING FABRIC TYPE OF A LAUNDRY LOAD IN A LAUNDRY TREATING APPLIANCE
    Publication number: 20140326067
    Abstract: A method of determining a fabric type for a laundry load can include comparing the density of the laundry load in a first wetted state, which may be a dry state or a partially saturated state, to the density of the laundry load in a second wetted state, which may be a partially saturated, fully saturated, or beyond fully saturated state, and determining a fabric type based on the comparison.
    Type: Application
    Filed: May 1, 2013
    Publication date: November 6, 2014
    Applicant: Whirlpool Corporation
    Inventors: HIRAK CHANDA, KAUSTAV GHOSH, ANDREW J. LEITERT, KARL DAVID MCALLISTER, AMY L. RAPSON, JON D. STRAIT, YINGQIN YUAN
  • RANDOM TUMBLING WASHING MACHINE WASH CHAMBER FOR IMPROVING CLEANING WHILE MINIMIZING MECHANICAL DAMAGE TO CLOTHES
    Publication number: 20140041130
    Abstract: Methods and apparatuses consistent with the present invention provide for improved cleaning while minimizing mechanical damage to clothes in automatic washer cycles using time-varying wash chamber oscillations. An automatic washer has a wash chamber with a central axis and is rotatable about the central axis. Items are loaded into the wash chamber. Wash liquid is supplied into the wash chamber. The wash chamber is oscillated about the central axis by time-varying oscillations.
    Type: Application
    Filed: October 21, 2013
    Publication date: February 13, 2014
    Applicant: WHIRLPOOL CORPORATION
    Inventors: KARL DAVID MCALLISTER, ANDREW J. LEITERT, DANIEL C. CONRAD
  • Random tumbling washing machine wash chamber for improving cleaning while minimizing mechanical damage to clothes
    Patent number: 8595876
    Abstract: Methods and apparatuses consistent with the present invention provide for improved cleaning while minimizing mechanical damage to clothes in automatic washer cycles using time-varying wash chamber oscillations. An automatic washer has a wash chamber with a central axis and is rotatable about the central axis. Items are loaded into the wash chamber. Wash liquid is supplied into the wash chamber. The wash chamber is oscillated about the central axis by time-varying oscillations.
    Type: Grant
    Filed: August 7, 2012
    Date of Patent: December 3, 2013
    Assignee: Whirlpool Corporation
    Inventors: Karl David McAllister, Andrew J. Leitert, Daniel C. Conrad
  • METHOD TO DETERMINE FABRIC TYPE IN A LAUNDRY TREATING APPLIANCE USING MOTOR CURRENT SIGNATURE DURING AGITATION
    Publication number: 20130185872
    Abstract: Disclosed is a method of operating a laundry treating appliance having a treating chamber that receives a laundry load for treatment according to a cycle of operation. The method includes determining the size of the laundry load in the treating chamber; supplying a predetermined amount of liquid to the treating chamber based on the determined load size; applying mechanical energy to the laundry treating chamber by driving a clothes mover with an electric motor; determining a difference between an in-rush current to the electric motor and a steady-state current of the electric motor during the applying of the mechanical energy; and determining a laundry load type of the laundry load based on the determined difference.
    Type: Application
    Filed: January 19, 2012
    Publication date: July 25, 2013
    Applicant: WHIRLPOOL CORPORATION
    Inventors: HIRAK CHANDA, KAUSTAV GHOSH, ANDREW J. LEITERT, KARL DAVID MCALLISTER, AMY L. RAPSON, JON D. STRAIT, YINGQIN YUAN
  • APPARATUS AND METHOD FOR DETERMINING A LOAD AMOUNT IN A LAUNDRY TREATING APPLIANCE DURING LOADING AND PROVIDING INDICATIONS REGARDING SAME
    Publication number: 20130042416
    Abstract: An apparatus and method for operating a laundry treating appliance includes determining an amount of laundry load during loading of the laundry treating appliance and provides indications to a user regarding the monitored amount.
    Type: Application
    Filed: August 15, 2011
    Publication date: February 21, 2013
    Applicant: WHIRLPOOL CORPORATION
    Inventors: BARBARA A. BALINSKI, ANDREW J. LEITERT, KARL DAVID MCALLISTER, JAMAL O. WILSON
  • LAUNDRY TREATING APPLIANCE WITH METHOD TO INCREASE CHEMICAL ACTION
    Publication number: 20130025072
    Abstract: A laundry treating appliance and method for increasing chemical action in a load of laundry associated with the supplying water and treating chemistry to the load of laundry.
    Type: Application
    Filed: July 28, 2011
    Publication date: January 31, 2013
    Applicant: WHIRLPOOL CORPORATION
    Inventors: MICHAEL J. BAUMAN, AMY CHEN, KAUSTAV GHOSH, ANDREW J. LEITERT, TREMITCHELL WRIGHT
  • RANDOM TUMBLING WASHING MACHINE WASH CHAMBER FOR IMPROVING CLEANING WHILE MINIMIZING MECHANICAL DAMAGE TO CLOTHES
    Publication number: 20120297553
    Abstract: Methods and apparatuses consistent with the present invention provide for improved cleaning while minimizing mechanical damage to clothes in automatic washer cycles using time-varying wash chamber oscillations. An automatic washer has a wash chamber with a central axis and is rotatable about the central axis. Items are loaded into the wash chamber. Wash liquid is supplied into the wash chamber. The wash chamber is oscillated about the central axis by time-varying oscillations.
    Type: Application
    Filed: August 7, 2012
    Publication date: November 29, 2012
    Applicant: WHIRLPOOL CORPORATION
    Inventors: KARL DAVID MCALLISTER, ANDREW J. LEITERT, DANIEL C. CONRAD
  • RANDOM TUMBLING WASHING MACHINE WASH CHAMBER FOR IMPROVING CLEANING WHILE MINIMIZING MECHANICAL DAMAGE TO CLOTHES
    Publication number: 20120297554
    Abstract: Methods and apparatuses consistent with the present invention provide for improved cleaning while minimizing mechanical damage to clothes in automatic washer cycles using time-varying wash chamber oscillations. An automatic washer has a wash chamber with a central axis and is rotatable about the central axis. Items are loaded into the wash chamber. Wash liquid is supplied into the wash chamber. The wash chamber is oscillated about the central axis by time-varying oscillations.
    Type: Application
    Filed: August 7, 2012
    Publication date: November 29, 2012
    Applicant: WHIRLPOOL CORPORATION
    Inventors: KARL DAVID MCALLISTER, ANDREW J. LEITERT, DANIEL C. CONRAD
  • Random tumbling washing machine wash chamber for improving cleaning while minimizing mechanical damage to clothes
    Patent number: 8256051
    Abstract: Methods and apparatuses consistent with the present invention provide for improved cleaning while minimizing mechanical damage to clothes in automatic washer cycles using time-varying wash chamber oscillations. An automatic washer has a wash chamber with a central axis and is rotatable about the central axis. Items are loaded into the wash chamber. Wash liquid is supplied into the wash chamber. The wash chamber is oscillated about the central axis by time-varying oscillations.
    Type: Grant
    Filed: February 23, 2010
    Date of Patent: September 4, 2012
    Assignee: Whirlpool Corporation
    Inventors: Karl David McAllister, Andrew J. Leitert, Daniel C. Conrad
  • RANDOM TUMBLING WASHING MACHINE WASH CHAMBER FOR IMPROVING CLEANING WHILE MINIMIZING MECHANICAL DAMAGE TO CLOTHES
    Publication number: 20100146714
    Abstract: Methods and apparatuses consistent with the present invention provide for improved cleaning while minimizing mechanical damage to clothes in automatic washer cycles using time-varying wash chamber oscillations. An automatic washer has a wash chamber with a central axis and is rotatable about the central axis. Items are loaded into the wash chamber. Wash liquid is supplied into the wash chamber. The wash chamber is oscillated about the central axis by time-varying oscillations.
    Type: Application
    Filed: February 23, 2010
    Publication date: June 17, 2010
    Applicant: WHIRLPOOL CORPORATION
    Inventors: KARL DAVID MCALLISTER, ANDREW J. LEITERT, DANIEL C. CONRAD
  • Non-aqueous washing machine and methods
    Patent number: 7695524
    Abstract: The invention relates to a non-aqueous washing machine, methods of using the machine, methods of washing, and recycling.
    Type: Grant
    Filed: October 31, 2003
    Date of Patent: April 13, 2010
    Assignee: Whirlpool Corporation
    Inventors: Tremitchell Wright, Daniel C. Conrad, Christopher C. Deboer, Michael Thomas Dalton, Joel A. Luckman, Andrew J. Leitert, Brooke Lindsay-Steel Lau, Karl David McAllister
  • Random tumbling washing machine wash chamber for improving cleaning while minimizing mechanical damage to clothes
    Patent number: 7690063
    Abstract: Methods and apparatuses consistent with the present invention provide for improved cleaning while minimizing mechanical damage to clothes in automatic washer cycles using time-varying wash chamber oscillations. An automatic washer has a wash chamber with a central axis and is rotatable about the central axis. Items are loaded into the wash chamber. Wash liquid is supplied into the wash chamber. The wash chamber is oscillated about the central axis by time-varying oscillations.
    Type: Grant
    Filed: January 27, 2004
    Date of Patent: April 6, 2010
    Assignee: Whirlpool Corporation
    Inventors: Karl David McAllister, Andrew J. Leitert, Daniel C. Conrad
  • Non-aqueous washing machine and methods
    Patent number: 7534304
    Abstract: The invention relates to a non-aqueous washing machine, methods of using the machine, methods of washing, and recycling.
    Type: Grant
    Filed: October 31, 2003
    Date of Patent: May 19, 2009
    Assignee: Whirlpool Corporation
    Inventors: Daniel C. Conrad, Tremitchell Wright, Michael T. Dalton, Kurt Estes, Mark B. Kovich, Andrew J. Leitert, Brooke Lindsay-Steel Lau, Cinnamon S. Brown-Green, Holli Krumbein, Kenyata Joi Maki, Joel A. Luckman, Karl David McAllister, Vicki Lyn Wyatt-Smith
  • Non-aqueous washing machine & methods
    Publication number: 20040117919
    Abstract: The invention relates to a non-aqueous washing machine, methods of using the machine, methods of washing, and recycling.
    Type: Application
    Filed: October 31, 2003
    Publication date: June 24, 2004
    Inventors: Daniel C. Conrad, Tremitchell Wright, Michael T. Dalton, Kurt Estes, Mark B. Kovich, Andrew J. Leitert, Brooke Lindsay-Steel Lau, Cinnamon S. Brown-Green, Holli Krumbein, Kenyata Joi Maki, Joel A. Luckman, Karl David McAllister, Vicki Lyn Wyatt-Smith