Patents by Inventor Sam L. Bertz

Sam L. Bertz 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: 20250073884
    Abstract: Power tools including a housing, an electrical circuit, and the housing. The housing includes a battery pack interface configured to receive a battery pack. The electrical circuit includes a resistor-capacitor (“RC”) circuit arrangement configured to store a voltage on a capacitor. The voltage is proportional to a temperature of the power tool. The electronic controller is connected to the electrical circuit and includes an electronic processor and a memory. The electronic controller is configured to control a voltage applied to the RC circuit arrangement, and determine, in response to determining a power off event of the power tool has ended, the temperature of the power tool based on the voltage of the capacitor of the RC circuit arrangement. The controller is also configured to control the power tool based on the voltage of the capacitor of the RC circuit arrangement and a temperature threshold.
    Type: Application
    Filed: January 31, 2024
    Publication date: March 6, 2025
    Inventors: Carl B. Westerby, Sam L. Bertz
  • Publication number: 20240042538
    Abstract: A portable pipe threader includes a collapsible stand, a housing supported by the collapsible stand, the housing supporting a battery-powered drive assembly, a first set of guide rails extending from a first end of the housing and supporting pipe threading tools, and a second set of guide rails extending from a second end of the housing and supporting a roll groover. The roll groover is configured to swing about a first one of the second set of guide rails to selectively engage a second one of the second set of guide rails.
    Type: Application
    Filed: July 31, 2023
    Publication date: February 8, 2024
    Inventors: Joseph J. PECHSTEIN, Sean T. KEHOE, Sam L. BERTZ, Aaron C. GRODE, Matthew R. WOLF, Joseph C. ILLG, Peter J. DAVIES
  • Publication number: 20230030692
    Abstract: A blind rivet nut-setting tool for setting a rivet nut including a housing having an anvil, a pull stud for engaging the rivet nut, and an output shaft defining a drive axis. The tool includes a motor defining a motor axis. The motor is configured to transfer torque to the output shaft to rotate the pull stud about the drive axis. The tool includes a clutch mechanism that is disposed between the motor and the output shaft. The clutch mechanism is moveable between an engaged state, in which a reaction torque exerted on the pull stud is below a predefined torque threshold, and a disengaged state, in which a reaction torque exerted on the pull stud is equal to or above a predefined torque threshold. The tool includes a pull mechanism that is driven by the motor and capable of translating the pull stud along the drive axis.
    Type: Application
    Filed: July 28, 2022
    Publication date: February 2, 2023
    Inventors: Dylan T. Johnson, Jonathan G. Kriefall, Mathew R. Rentmeester, Sam L. Bertz, John C. Cameron