Patents by Inventor Benjamin C. TESCH

Benjamin C. TESCH 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: 12294232
    Abstract: A portable power supply including an internal power source, an AC output, a DC output, and an input unit configured to receive power from a first external source. The portable power supply further includes a first power conversion unit configured to convert the power received from the first external source to a first DC power used for charging the internal power source, an AC power conversion unit configured to convert power output by the internal power source to an AC power used for powering a first peripheral device connected to the AC output, and a DC power conversion unit configured to convert power output by the internal power source to a second DC power used for powering a second peripheral device connected to the DC output.
    Type: Grant
    Filed: December 17, 2021
    Date of Patent: May 6, 2025
    Assignee: Milwaukee Electric Tool Corporation
    Inventors: Mahesh M. Swamy, Omid H. Shirazi, Matthew R. Polakowski, Nathan J. Gustafson, Paul C. Chao, Samantha L. Billetdeaux, Michael R. Halverson, Benjamin C. Tesch, Chun Jian Tang, Michael A. Matthews, James Dykstra, Brian M. Hockers, Catherine Kelli Semon, Andrew S. Lentz
  • Publication number: 20240072554
    Abstract: A portable power supply includes a housing, a control area network (“CAN”) bus, a battery core configured to be charged by a battery core charger, a battery pack charger connected to the battery core and to the CAN bus via a galvanic isolation barrier. A battery management system is connected to the battery pack charger via the CAN bus and a power line and configured to control an operation of the battery pack charger and the battery core charger. A battery pack detection circuit is connected to one or more charging ports of the one or more charging modules. The battery pack detection circuit configured to draw current from a battery pack and produce a battery pack detection signal at battery management system via a galvanic isolation device.
    Type: Application
    Filed: August 23, 2023
    Publication date: February 29, 2024
    Inventors: Benjamin C. Tesch, David Brochtrup
  • Publication number: 20240047767
    Abstract: A portable power supply. The portable power supply includes a housing, a CAN bus in the housing, a battery core in the housing and configured to be charged by a battery core charger, a battery pack charger connected to the battery core and to the CAN bus via a galvanic isolation barrier and including one or more charging modules, a battery management system connected to the battery pack charger via the CAN bus and configured to control an operation of the battery pack charger and the battery core charger, and a human machine interface connected to the battery management system via the CAN bus and configured to allow a user to generate one or more control commands or information requests on the CAN bus for execution by one or more of the battery management system, battery core charger, or battery pack charger.
    Type: Application
    Filed: July 26, 2023
    Publication date: February 8, 2024
    Inventors: David Brochtrup, Benjamin C. Tesch, Brian M. Hockers
  • Publication number: 20230396087
    Abstract: A portable power supply includes an internal power source, a thermal management system configured to control a temperature of one or more internal components of the portable power supply, a power input unit configured to charge the internal power source, a power output unit configured to provide power output by the internal power source, a first sensing circuit configured to detect the temperature of the one or more internal components, a secondary power source, and a controller. The controller is configured to receive a first signal from the first sensing circuit, enable the thermal management system based on the temperature of the one or more internal components, and enable charging of the internal power source based on the temperature of the one or more internal components.
    Type: Application
    Filed: May 31, 2023
    Publication date: December 7, 2023
    Inventors: Chun Jian Tang, Michael A. Barrowclift, Brian M. Hockers, Benjamin C. Tesch
  • Patent number: 11710974
    Abstract: A power adapter assembly and an electrical system. The power adapter assembly is operable to supply power to an electrical device. The power adapter assembly includes a power box including a housing, an electrical circuit supported by the housing, the electrical circuit being operable to receive as input AC power and to output DC power, an adapter controller operable to control the adapter assembly; and an adapter electrically connected to the power box, the adapter including an adapter engagement portion connectable to a device engagement portion to connect the adapter to the electrical device, DC power being output from the electrical circuit through the adapter to the electrical device to power the load, when the adapter engagement portion is connected to the device engagement portion, a communication interface between the adapter assembly and the electrical device being active even when power is not being output to power the load.
    Type: Grant
    Filed: December 12, 2019
    Date of Patent: July 25, 2023
    Assignee: Milwaukee Electric Tool Corporation
    Inventors: Dean W. Nowalis, Gary Lee McMurray, Brian Alves, Timothy R. Obermann, Benjamin C. Tesch, DanJun Guo, HuaLiang Lai
  • Publication number: 20220200303
    Abstract: A portable power supply including an internal power source, an AC output, a DC output, and an input unit configured to receive power from a first external source. The portable power supply further includes a first power conversion unit configured to convert the power received from the first external source to a first DC power used for charging the internal power source, an AC power conversion unit configured to convert power output by the internal power source to an AC power used for powering a first peripheral device connected to the AC output, and a DC power conversion unit configured to convert power output by the internal power source to a second DC power used for powering a second peripheral device connected to the DC output.
    Type: Application
    Filed: December 17, 2021
    Publication date: June 23, 2022
    Inventors: Mahesh M. Swamy, Omid H. Shirazi, Matthew R. Polakowski, Nathan J. Gustafson, Chien-Chih Chao, Samantha L. Billetdeaux, Michael R. Halverson, Benjamin C. Tesch, Chun Jian Tang, Michael A. Matthews, James Dykstra, Brian M. Hockers, Catherine Kelli Semon, Andrew S. Lentz
  • Publication number: 20210281084
    Abstract: A portable power supply including a first subcore including a first plurality of battery cells, a second subcore including a second plurality battery cells and electrically connected in series with the first subcore, and a controller including an electronic processor. The controller is configured to receive a first voltage value indicative of a voltage of the first plurality of battery cells from the first subcore and a second voltage value indicative of a voltage of the second plurality of battery cells from the second subcore. The controller is further configured to determine a difference between the first voltage value and the second voltage value, compare the difference to a balance threshold, and perform a balancing operation when the difference is greater than or equal to the balance threshold.
    Type: Application
    Filed: March 2, 2021
    Publication date: September 9, 2021
    Inventors: Chun Jian Tang, Benjamin C. Tesch, Chien-Chih Chao, Brian M. Hockers
  • Publication number: 20200194735
    Abstract: A power adapter assembly and an electrical system. The power adapter assembly is operable to supply power to an electrical device. The power adapter assembly includes a power box including a housing, an electrical circuit supported by the housing, the electrical circuit being operable to receive as input AC power and to output DC power, an adapter controller operable to control the adapter assembly; and an adapter electrically connected to the power box, the adapter including an adapter engagement portion connectable to a device engagement portion to connect the adapter to the electrical device, DC power being output from the electrical circuit through the adapter to the electrical device to power the load, when the adapter engagement portion is connected to the device engagement portion, a communication interface between the adapter assembly and the electrical device being active even when power is not being output to power the load.
    Type: Application
    Filed: December 12, 2019
    Publication date: June 18, 2020
    Inventors: Dean W. NOWALIS, Gary Lee MCMURRAY, Brian ALVES, Timothy R. OBERMANN, Benjamin C. TESCH, DanJun GUO, HuaLiang LAI