Patents by Inventor Griffin M. Steffy

Griffin M. Steffy 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).

  • Detecting battery pack type based on battery pack impedance
    Patent number: 12196815
    Abstract: A device, such as a power tool, configured to receive a battery pack that is operable to determine a type of battery pack that is attached to the device. When the battery pack is connected to the device, the device is configured to determine an impedance of the battery pack. Based on the determined impedance of the battery pack, the device is capable of detecting the particular type of battery pack that has been attached. In some embodiments, the device is configured to be controlled based on the type of battery pack that has been detected by the device.
    Type: Grant
    Filed: October 27, 2021
    Date of Patent: January 14, 2025
    Assignee: Milwaukee Electric Tool Corporation
    Inventors: Carl B. Westerby, Griffin M. Steffy, Alex R. Kuhls, Jonathan E. Abbott, Alexander T. Huber, Gareth Mueckl, Douglas R. Fieldbinder
  • PRUNING SHEARS
    Publication number: 20230172113
    Abstract: Pruning shears include a housing having a motor portion and a handle portion. A motor is disposed within the motor portion of the housing, and a trigger assembly is disposed within the housing portion. The trigger assembly is operable to control the motor. The trigger assembly includes a trigger and a trigger lock. The trigger lock prevents actuation of the trigger until the trigger lock is depressed.
    Type: Application
    Filed: December 6, 2022
    Publication date: June 8, 2023
    Inventors: Alexander G. Steinhauer, Griffin M. Steffy, Joseph R. Outinen, Justin M. Czok, Peter J. Davies, Sara Burch, Scott D. Libert
  • DETECTING BATTERY PACK TYPE BASED ON BATTERY PACK IMPEDANCE
    Publication number: 20220137147
    Abstract: A device, such as a power tool, configured to receive a battery pack that is operable to determine a type of battery pack that is attached to the device. When the battery pack is connected to the device, the device is configured to determine an impedance of the battery pack. Based on the determined impedance of the battery pack, the device is capable of detecting the particular type of battery pack that has been attached. In some embodiments, the device is configured to be controlled based on the type of battery pack that has been detected by the device.
    Type: Application
    Filed: October 27, 2021
    Publication date: May 5, 2022
    Inventors: Carl B. Westerby, Griffin M. Steffy, Alex R. Kuhls, Jonathan E. Abbott, Alexander T. Huber, Gareth Mueckl, Douglas R. Fieldbinder