Patents by Inventor RALF HASELMEIER

RALF HASELMEIER 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).

  • Publication number: 20220145521
    Abstract: A domestic clothes dryer includes a rotating drum that defines a drying chamber, an air inlet upstream the drum, and a lifter coupled to the drum. The lifter is in communication with the air inlet for distributing air inside the drum through a plurality of openings. The air inlet includes a shaped air plenum chamber facing a lower portion of a rear perforated wall of the drum and capable of delivering air to said lifter and/or directly to the drum through the rear perforated wall.
    Type: Application
    Filed: January 24, 2022
    Publication date: May 12, 2022
    Applicant: WHIRLPOOL CORPORATION
    Inventors: Ralf Haselmeier, Jurij Paderno
  • Patent number: 11261559
    Abstract: A domestic clothes dryer comprises a rotating drum defining a drying chamber, an air inlet upstream the drum and at least a hollow lifter mounted in the drum, wherein said hollow lifter is in communication with the air inlet for distributing air inside the drum through a plurality of openings. The air inlet comprises a shaped air plenum chamber facing a lower portion of a rear perforated wall of the drum and capable of delivering air to said lifter and/or directly to the drum through said rear perforated wall.
    Type: Grant
    Filed: November 5, 2019
    Date of Patent: March 1, 2022
    Assignee: Whirlpool Corporation
    Inventors: Ralf Haselmeier, Jurij Paderno
  • Publication number: 20200080248
    Abstract: A domestic clothes dryer comprises a rotating drum defining a drying chamber, an air inlet upstream the drum and at least a hollow lifter mounted in the drum, wherein said hollow lifter is in communication with the air inlet for distributing air inside the drum through a plurality of openings. The air inlet comprises a shaped air plenum chamber facing a lower portion of a rear perforated wall of the drum and capable of delivering air to said lifter and/or directly to the drum through said rear perforated wall.
    Type: Application
    Filed: November 5, 2019
    Publication date: March 12, 2020
    Applicant: WHIRLPOOL CORPORATION
    Inventors: Ralf Haselmeier, Jurij Paderno
  • Patent number: 10501885
    Abstract: A domestic clothes dryer comprises a rotating drum defining a drying chamber, an air inlet upstream the drum and at least a hollow lifter mounted in the drum, wherein said hollow lifter is in communication with the air inlet for distributing air inside the drum through a plurality of openings. The air inlet comprises a shaped air plenum chamber facing a lower portion of a rear perforated wall of the drum and capable of delivering air to said lifter and/or directly to the drum through said rear perforated wall.
    Type: Grant
    Filed: May 4, 2017
    Date of Patent: December 10, 2019
    Assignee: Whirlpool Corporation
    Inventors: Ralf Haselmeier, Jurij Paderno
  • Publication number: 20170233940
    Abstract: A domestic clothes dryer comprises a rotating drum defining a drying chamber, an air inlet upstream the drum and at least a hollow lifter mounted in the drum, wherein said hollow lifter is in communication with the air inlet for distributing air inside the drum through a plurality of openings. The air inlet comprises a shaped air plenum chamber facing a lower portion of a rear perforated wall of the drum and capable of delivering air to said lifter and/or directly to the drum through said rear perforated wall.
    Type: Application
    Filed: May 4, 2017
    Publication date: August 17, 2017
    Applicant: WHIRLPOOL CORPORATION
    Inventors: RALF HASELMEIER, JURIJ PADERNO
  • Patent number: 9605375
    Abstract: A method for treating clothes in a dryer, particularly for removing wrinkles from clothes at the end of a clothes drying program or a clothes refreshing program, in which the flow rate of process air circulated in a closed loop is decreased by reversing the rotation of the fan.
    Type: Grant
    Filed: March 9, 2015
    Date of Patent: March 28, 2017
    Assignee: Whirlpool Corporation
    Inventors: Michael Frank, Ralf Haselmeier, Claudia Schuler
  • Publication number: 20150259848
    Abstract: A method for treating clothes in a dryer, particularly for removing wrinkles from clothes at the end of a clothes drying program or a clothes refreshing program, in which the flow rate of process air circulated in a closed loop is decreased by reversing the rotation of the fan.
    Type: Application
    Filed: March 9, 2015
    Publication date: September 17, 2015
    Applicant: WHIRLPOOL CORPORATION
    Inventors: MICHAEL FRANK, RALF HASELMEIER, CLAUDIA SCHULER
  • Publication number: 20140215847
    Abstract: Clothes dryers that distribute air through one or more lifters are disclosed. An example domestic clothes dryer includes a rotating drum defining a drying chamber, an air inlet upstream the drum, and lifter mounted in the drum, wherein said lifter is in communication with the air inlet for distributing air inside the drum through a plurality of openings. An example air inlet includes a shaped air plenum chamber facing a lower portion of a rear perforated wall of the drum and capable of delivering air to said lifter and/or directly to the drum through said rear perforated wall.
    Type: Application
    Filed: February 5, 2014
    Publication date: August 7, 2014
    Applicant: WHIRLPOOL CORPORATION
    Inventors: RALF HASELMEIER, JURIJ PADERNO
  • Patent number: 8793899
    Abstract: A closed cycle dryer comprises a drum, an air blowing unit wherein the air is conveyed to the drum, a heating unit used to heat the air that is blown into the drum, and a condensing unit upstream the heating unit for removing moisture. The dryer further comprises a by-pass between a first portion of the air circuit downstream the condensing unit and a second portion downstream the drum in order to increase the energy efficiency of the drying process.
    Type: Grant
    Filed: May 4, 2011
    Date of Patent: August 5, 2014
    Assignee: Whirlpool Corporation
    Inventors: Thomas Willy Kroeger, Ralf Haselmeier
  • Publication number: 20110271547
    Abstract: A closed cycle dryer comprises a drum, an air blowing unit wherein the air is conveyed to the drum, a heating unit used to heat the air that is blown into the drum, and a condensing unit upstream the heating unit for removing moisture. The dryer further comprises a by-pass between a first portion of the air circuit downstream the condensing unit and a second portion downstream the drum in order to increase the energy efficiency of the drying process.
    Type: Application
    Filed: May 4, 2011
    Publication date: November 10, 2011
    Applicant: WHIRLPOOL CORPORATION
    Inventors: THOMAS WILLY KROEGER, RALF HASELMEIER