Patents by Inventor WALDEMAR ROMANOWSKI

WALDEMAR ROMANOWSKI 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).

  • Heater status monitor
    Patent number: 11418028
    Abstract: An appliance having a heater connectable to a power source to create a heater circuit is disclosed. The appliance includes a controller and a heater switch configured to be selectively closed in response to a control signal from the controller to complete the heater circuit and enable current to flow from the power source to the electric heater. The appliance further includes a heater feedback circuit comprising a plurality of resistors and configured to be connected to the power source and further configured to generate an output signal to the controller having a first state indicative of no current leakage from the heater circuit, a second state indicative of current leakage from the heater circuit where the polarity of the power source is normal, and a third state indicative of current leakage from the heater circuit where the polarity of the power source is reversed.
    Type: Grant
    Filed: March 3, 2021
    Date of Patent: August 16, 2022
    Assignee: Whirlpool Corporation
    Inventors: Emanuela Antognoli, Wojciech A. Barczyk, Michal Pasiecznik, Marco Quintini, Waldemar Romanowski
  • Method and apparatus for an appliance with a power saving mode
    Patent number: 8932412
    Abstract: A dishwasher configured to perform a physical cycle of operation and having a power savings mode during which the dishwasher periodically monitors a key press by a user to determine if the dishwasher should be taken out of the power savings mode.
    Type: Grant
    Filed: June 29, 2011
    Date of Patent: January 13, 2015
    Assignee: Whirlpool Corporation
    Inventors: Nelson J. Ferragut, II, David W. Jiral, Paul R. Johnson, Waldemar Romanowski, Ryan K. Roth
  • METHOD AND APPARATUS FOR AN APPLIANCE WITH A POWER SAVING MODE
    Publication number: 20130000674
    Abstract: A dishwasher configured to perform a physical cycle of operation and having a power savings mode during which the dishwasher periodically monitors a key press by a user to determine if the dishwasher should be taken out of the power savings mode.
    Type: Application
    Filed: June 29, 2011
    Publication date: January 3, 2013
    Applicant: WHIRLPOOL CORPORATION
    Inventors: NELSON J. FERRAGUT, II, DAVID W. JIRAL, PAUL R. JOHNSON, WALDEMAR ROMANOWSKI, RYAN K. ROTH