Patents by Inventor MARCELO C. SILVA

MARCELO C. SILVA 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).

  • Apparatus for redistributing an imbalance in a laundry treating appliance
    Patent number: 9708741
    Abstract: An apparatus for detecting an imbalance in the laundry load and effecting a redistribution of the imbalance by reducing the rotational speed of the treating chamber such that part of the load may redistribute while part of the load remains satellized, without ceasing rotation, and increasing the rotational speed back to a spin speed after redistribution.
    Type: Grant
    Filed: March 10, 2015
    Date of Patent: July 18, 2017
    Assignee: Whirlpool Corporation
    Inventors: Farhad Ashrafzadeh, Brian P. Janke, Peter J. Richmond, Marcelo C. Silva, Rodrigo Stanziola Teixeira
  • APPARATUS FOR CONTROLLING THE EXTRACTION DURATION IN A LAUNDRY TREATING APPLIANCE
    Publication number: 20150330009
    Abstract: An apparatus for monitoring a characteristic of the motor for use in determining the duration of the extraction phase of the cycle of operation in a laundry treating appliance.
    Type: Application
    Filed: July 28, 2015
    Publication date: November 19, 2015
    Applicant: WHIRLPOOL CORPORATION
    Inventors: HORACIO B. POLLI, MARCELO C. SILVA, LUIZ H. STIVAL
  • Method and apparatus for controlling the extraction duration in a laundry treating appliance
    Patent number: 9115455
    Abstract: A method and apparatus for monitoring a characteristic of a motor, such as the leveling of torque, for use in determining a duration of an extraction phase of a cycle of operation in a laundry treating appliance.
    Type: Grant
    Filed: December 9, 2010
    Date of Patent: August 25, 2015
    Assignee: Whirlpool Corporation
    Inventors: Horacio B. Polli, Marcelo C. Silva, Luiz H. Stival
  • APPARATUS FOR REDISTRIBUTING AN IMBALANCE IN A LAUNDRY TREATING APPLIANCE
    Publication number: 20150176179
    Abstract: An apparatus for detecting an imbalance in the laundry load and effecting a redistribution of the imbalance by reducing the rotational speed of the treating chamber such that part of the load may redistribute while part of the load remains satellized, without ceasing rotation, and increasing the rotational speed back to a spin speed after redistribution.
    Type: Application
    Filed: March 10, 2015
    Publication date: June 25, 2015
    Applicant: WHIRLPOOL CORPORATION
    Inventors: FARHAD ASHRAFZADEH, BRIAN P. JANKE, PETER J. RICHMOND, MARCELO C. SILVA, RODRIGO STANZIOLA TEIXEIRA
  • Determination of magnetic flux and temperature of permanent magnets in washing machine motor
    Patent number: 9000699
    Abstract: According to one illustrative embodiment, a washing machine comprises a motor including a plurality of coils and one or more permanent magnets, an inverter configured to supply current to the plurality of coils and to measure a back electromotive force (BEMF) waveform from the plurality of coils, and an electronic control unit (ECU) configured to (i) integrate the BEMF waveform to generate an integrated BEMF waveform, (ii) determine a magnetic flux of the one or more permanent magnets using an amplitude of the integrated BEMF waveform, and (iii) control the current supplied by the inverter based at least in part upon the determined magnetic flux.
    Type: Grant
    Filed: November 10, 2011
    Date of Patent: April 7, 2015
    Assignee: Whirlpool Corporation
    Inventors: Matheus A. Bevilaqua, Luiz V. Dokonal, Evandro J. Meurer, Fernando P. Silva, Marcelo C. Silva, Rodrigo S. Teixeira
  • Method and apparatus for redistributing an imbalance in a laundry treating appliance
    Patent number: 8984693
    Abstract: An apparatus and method for detecting an imbalance in the laundry load and effecting a redistribution of the imbalance by reducing the rotational speed of the treating chamber such that part of the load may redistribute while part of the load remains satellized, without ceasing rotation, and increasing the rotational speed back to a spin speed after redistribution.
    Type: Grant
    Filed: December 10, 2010
    Date of Patent: March 24, 2015
    Assignee: Whirlpool Corporation
    Inventors: Farhad Ashrafzadeh, Brian P. Janke, Peter J. Richmond, Marcelo C. Silva, Rodrigo S. Teixeira
  • DETERMINATION OF MAGNETIC FLUX AND TEMPERATURE OF PERMANENT MAGNETS IN WASHING MACHINE MOTOR
    Publication number: 20130119905
    Abstract: According to one illustrative embodiment, a washing machine comprises a motor including a plurality of coils and one or more permanent magnets, an inverter configured to supply current to the plurality of coils and to measure a back electromotive force (BEMF) waveform from the plurality of coils, and an electronic control unit (ECU) configured to (i) integrate the BEMF waveform to generate an integrated BEMF waveform, (ii) determine a magnetic flux of the one or more permanent magnets using an amplitude of the integrated BEMF waveform, and (iii) control the current supplied by the inverter based at least in part upon the determined magnetic flux.
    Type: Application
    Filed: November 10, 2011
    Publication date: May 16, 2013
    Applicant: WHIRLPOOL CORPORATION
    Inventors: MATHEUS A. BEVILAQUA, LUIZ V. DOKONAL, EVANDRO J. MEURER, FERNANDO P. SILVA, MARCELO C. SILVA, RODRIGO S. TEIXEIRA
  • METHOD AND APPARATUS FOR CONTROLLING THE EXTRACTION DURATION IN A LAUNDRY TREATING APPLIANCE
    Publication number: 20120144599
    Abstract: A method and apparatus for monitoring a characteristic of the motor for use in determining the duration of the extraction phase of the cycle of operation in a laundry treating appliance.
    Type: Application
    Filed: December 9, 2010
    Publication date: June 14, 2012
    Applicant: WHIRLPOOL CORPORATION
    Inventors: HORACIO B. POLLI, MARCELO C. SILVA, LUIZ H. STIVAL
  • METHOD AND APPARATUS FOR REDISTRIBUTING AN IMBALANCE IN A LAUNDRY TREATING APPLIANCE
    Publication number: 20120144600
    Abstract: An apparatus and method for detecting an imbalance in the laundry load and effecting a redistribution of the imbalance by reducing the rotational speed of the treating chamber such that part of the load may redistribute while part of the load remains satellized, without ceasing rotation, and increasing the rotational speed back to a spin speed after redistribution.
    Type: Application
    Filed: December 10, 2010
    Publication date: June 14, 2012
    Applicant: WHIRLPOOL CORPORATION
    Inventors: FARHAD ASHRAFZADEH, BRIAN P. JANKE, PETER J. RICHMOND, MARCELO C. SILVA, RODRIGO S. TEIXEIRA