Patents by Inventor Michael Ledford

Michael Ledford 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).

  • Patent number: 11982039
    Abstract: A removable fluid pumping and filtration apparatus for a laundry treatment machine is provided. The apparatus includes a plurality of selectively attachable and detachable stackable sections, the sections including a handle section and one or more further sections; wherein, when attached together in stacked arrangement to form an agitator, the plurality of sections collectively define: a cylindrical body, a hollow interior of the body, first and second opening about the exterior circumference of the body to define a water flow path into and out of the hollow interior, and placement within the hollow interior for a removable filter along the water flow path, and wherein the handle section including an area to grip onto and rotate the removable fluid pumping and filtration apparatus to facilitate insertion and removal of the agitator.
    Type: Grant
    Filed: January 25, 2022
    Date of Patent: May 14, 2024
    Assignee: WHIRLPOOL CORPORATION
    Inventors: Seth E. Bixby, Sayer J. Murphy, Thomas D. Spicer, Eric J. Vasko, Heather A. Hellmuth, Michael A. Ledford, Meagan K. Vandervelde
  • Patent number: 11979967
    Abstract: A combined ventilation and microwave oven system includes an external enclosure with a top portion defining recirculation vent outlets, a cooling air inlet, a cooling air outlet, and an outside vent outlet, first and second side portions, and a bottom portion defining a vent inlet. The vent inlet is connected with the recirculation vent outlets and the outside vent outlet via airflow pathways. A hood assembly is disposed within the external enclosure and includes a first hood fan disposed between the cooking cavity and the first side portion and a second hood fan disposed between the cooking cavity and the second side portion. The hood assembly is configured to direct air through the vent inlet and through an interior of the external enclosure. A cooling fan is disposed between the cooking cavity and the second side portion to direct air through the cooling air inlet and the cooling air outlet.
    Type: Grant
    Filed: May 5, 2023
    Date of Patent: May 7, 2024
    Assignee: Whirlpool Corporation
    Inventors: Owen (XunCai) Zhang, Michael A. Ledford, Stephen Zheng, Xiangxu Liu
  • Patent number: 11950349
    Abstract: A combined ventilation and microwave oven system includes an external enclosure with a top portion defining recirculation vent outlets, a cooling air inlet, a cooling air outlet, and an outside vent outlet, first and second side portions, and a bottom portion defining a vent inlet. The vent inlet is connected with the recirculation vent outlets and the outside vent outlet via airflow pathways. A hood assembly is disposed within the external enclosure and includes a first hood fan disposed between the cooking cavity and the first side portion and a second hood fan disposed between the cooking cavity and the second side portion. The hood assembly is configured to direct air through the vent inlet and through an interior of the external enclosure. A cooling fan is disposed between the cooking cavity and the second side portion to direct air through the cooling air inlet and the cooling air outlet.
    Type: Grant
    Filed: May 5, 2023
    Date of Patent: April 2, 2024
    Assignee: Whirlpool Corporation
    Inventors: Owen (XunCai) Zhang, Michael A. Ledford, Stephen Zheng, Xiangxu Liu
  • Patent number: 11941632
    Abstract: A real-time system and method for invoking a fraud alert notification to a bank prompted by an abandoned deposit following a denied accelerated funding request for a financial item.
    Type: Grant
    Filed: October 9, 2019
    Date of Patent: March 26, 2024
    Inventors: Dyron Clower, John Templer, La Shonna Sharp, Aaron Calipari, Michael Ring, Michael Serrette, Nickolas Ledford, Lawrence Dugger, Rodney Drake, Diana Hayes
  • Publication number: 20230276545
    Abstract: A combined ventilation and microwave oven system includes an external enclosure with a top portion defining recirculation vent outlets, a cooling air outlet, and an outside vent outlet, side portions, and a bottom portion defining vent inlets. The vent inlets are in fluid communication with the recirculation vent outlets in a recirculation mode and the outside vent outlet in an outside vent mode. A cooling fan is disposed between the cooking cavity and the first side portion and is configured to direct air through the cooling air inlet and the cooling air outlet. A hood assembly is disposed within the external enclosure and includes at least one first hood fan disposed between the cooking cavity and the first side portion, and a second hood fan disposed between the cooking cavity and the second side portion to direct air through the vent inlets and through an interior of the external enclosure.
    Type: Application
    Filed: May 5, 2023
    Publication date: August 31, 2023
    Applicant: WHIRLPOOL CORPORATION
    Inventors: Owen (XunCai) Zhang, Michael A. Ledford, Stephen Zheng, Xiangxu Liu
  • Publication number: 20230276546
    Abstract: A microwave hood system includes an outer wrapper with a top portion including a cooling air inlet, a cooling air outlet, an outside vent outlet, and a recirculation vent outlet, a first side portion, and a second side portion. A bottom portion includes a vent inlet and is operably coupled to the outer wrapper. A cooking cavity is disposed between the top portion and the bottom portion. A cooking component area is laterally adjacent one of the first side portion and the second side portion. A hood assembly includes a first hood fan disposed between the first side portion and the cooking cavity and a second hood fan disposed between the second side portion and the cooking cavity. A cooling fan is disposed in the cooking component area proximate the second side portion. The cooling fan is in fluid communication with the cooling air inlet.
    Type: Application
    Filed: May 5, 2023
    Publication date: August 31, 2023
    Applicant: WHIRLPOOL CORPORATION
    Inventors: Owen (XunCai) Zhang, Michael A. Ledford, Stephen Zheng, Xiangxu Liu
  • Publication number: 20230276544
    Abstract: A combined ventilation and microwave oven system includes an external enclosure with a top portion defining recirculation vent outlets, a cooling air inlet, a cooling air outlet, and an outside vent outlet, first and second side portions, and a bottom portion defining a vent inlet. The vent inlet is connected with the recirculation vent outlets and the outside vent outlet via airflow pathways. A hood assembly is disposed within the external enclosure and includes a first hood fan disposed between the cooking cavity and the first side portion and a second hood fan disposed between the cooking cavity and the second side portion. The hood assembly is configured to direct air through the vent inlet and through an interior of the external enclosure. A cooling fan is disposed between the cooking cavity and the second side portion to direct air through the cooling air inlet and the cooling air outlet.
    Type: Application
    Filed: May 5, 2023
    Publication date: August 31, 2023
    Applicant: WHIRLPOOL CORPORATION
    Inventors: Owen (XunCai) Zhang, Michael A. Ledford, Stephen Zheng, Xiangxu Liu
  • Publication number: 20230097488
    Abstract: A microwave hood system is provided. The microwave hood system includes a microwave oven enclosure defining a cooking cavity therein. A cooking component is positioned within the cooking cavity and configured to emit microwaves. The heating system defines a heating cavity therein, wherein the heating system is coupled to the microwave oven enclosure. A heating element is positioned in the heating cavity. The heating cavity reaches a temperature in a range from about 40° C. to about 80° C. when the heating element is in use. A broiler element is positioned within the heating cavity. The heating cavity reaches a temperature in a range from about hundred and 150° C. to about 300° C. when the broiler element is in use. A dual hood system is also coupled to the microwave hood system.
    Type: Application
    Filed: December 2, 2022
    Publication date: March 30, 2023
    Applicant: WHIRLPOOL CORPORATION
    Inventors: Owen (XunCai) Zhang, Michael A. Ledford, Stephen Zheng, Tony (XinFeng) Huang, Heng Tong Pit
  • Patent number: 11523473
    Abstract: A microwave hood system is provided. The microwave hood system includes a microwave oven enclosure defining a cooking cavity therein. A cooking component is positioned within the cooking cavity and configured to emit microwaves. The heating system defines a heating cavity therein, wherein the heating system is coupled to the microwave oven enclosure. A heating element is positioned in the heating cavity. The heating cavity reaches a temperature in a range from about 40° C. to about 80° C. when the heating element is in use. A broiler element is positioned within the heating cavity. The heating cavity reaches a temperature in a range from about hundred and 150° C. to about 300° C. when the broiler element is in use. A dual hood system is also coupled to the microwave hood system.
    Type: Grant
    Filed: February 1, 2019
    Date of Patent: December 6, 2022
    Assignee: Whirlpool Corporation
    Inventors: Owen (XunCai) Zhang, Michael A. Ledford, Stephen Zheng, Tony (XinFeng) Huang, Heng Tong Pit
  • Patent number: 11079118
    Abstract: A combined ventilation hood and microwave oven system (10) with an overall vertical dimension (30) is provided, which is smaller than a conventional combined ventilation hood and microwave oven. One or more vent hood fans (66;74) are disposed on lateral sides of a microwave coo-king cavity (34) to draw in exhaust air (92;93) through one or more vent inlets (54;56;158;160) disposed on a bottom surface (20;156) and expel the exhaust air (92;93;162) through one or more vent outlets (46;52) defined on a surface of an outer wrapper (80) of the combined system. The low-profile combined ventilation hood and microwave oven system is coupled with a modular heating system (150;180) for heating food, which provides both functions within the space typically required by the conventional combined ventilation hood and microwave oven.
    Type: Grant
    Filed: April 11, 2017
    Date of Patent: August 3, 2021
    Assignee: Whirlpool Corporation
    Inventors: Owen Zhang, Michael Ledford, Xiangxu Liu, Stephen Zheng
  • Publication number: 20190166658
    Abstract: A microwave hood system is provided. The microwave hood system includes a microwave oven enclosure defining a cooking cavity therein. A cooking component is positioned within the cooking cavity and configured to emit microwaves. The heating system defines a heating cavity therein, wherein the heating system is coupled to the microwave oven enclosure. A heating element is positioned in the heating cavity. The heating cavity reaches a temperature in a range from about 40° C. to about 80° C. when the heating element is in use. A broiler element is positioned within the heating cavity. The heating cavity reaches a temperature in a range from about hundred and 150° C. to about 300° C. when the broiler element is in use.
    Type: Application
    Filed: February 1, 2019
    Publication date: May 30, 2019
    Applicant: WHIRLPOOL CORPORATION
    Inventors: Owen (XunCai) Zhang, Michael A. Ledford, Stephen Zheng, Tony (XinFeng) Huang, Heng Tong Pit
  • Publication number: 20190113241
    Abstract: A combined ventilation hood and microwave oven system (10) with an overall vertical dimension (30) is provided, which is smaller than a conventional combined ventilation hood and microwave oven. One or more vent hood fans (66;74) are disposed on lateral sides of a microwave coo-king cavity (34) to draw in exhaust air (92;93) through one or more vent inlets (54;56;158;160) disposed on a bottom surface (20;156) and expel the exhaust air (92;93;162) through one or more vent outlets (46;52) defined on a surface of an outer wrapper (80) of the combined system. The low-profile combined ventilation hood and microwave oven system is coupled with a modular heating system (150;180) for heating food, which provides both functions within the space typically required by the conventional combined ventilation hood and microwave oven.
    Type: Application
    Filed: April 11, 2017
    Publication date: April 18, 2019
    Applicant: WHIRLPOOL CORPORATION
    Inventors: Owen Zhang, Michael Ledford, Xiangxu Liu, Stephen Zheng
  • Publication number: 20060169961
    Abstract: An improved winch assembly adaptably configured for use with a new or existing lift structure suitably dedicated for short- and long-term storage of a recreational boat and related watercraft. The winch assembly comprises three drive assemblies housed and mounted within a chassis. The first drive assembly comprises a first plate sprocket and a pair of cable guards collectively mounted onto a cable hub to form a spool assembly for accepting and winding thereon a predetermined length of cabling. The second drive assembly comprises a stepped hub having three discrete cylindrical surfaces to form first and second annular walls for mounting thereagainst primary and secondary plate sprockets and an inner bore extending therethrough for receiving therein an intermediate axle having ends affixed to the chassis, wherein the primary plate sprocket is connectively coupled with the first plate sprocket by a drive chain.
    Type: Application
    Filed: October 1, 2005
    Publication date: August 3, 2006
    Inventor: Michael Ledford
  • Patent number: D898502
    Type: Grant
    Filed: March 26, 2018
    Date of Patent: October 13, 2020
    Assignee: Whirlpool Corporation
    Inventors: Michael A. Ledford, Yu Liu, Kyle A. Walters, JunHua Wu, XunCai Zhang