Patents by Inventor Mitchell Duane Campbell

Mitchell Duane Campbell 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).

  • Motorized instrument strummer
    Patent number: 10803841
    Abstract: A hand-held strumming device includes a hollow body, a power source, a motor, a regulator, and a strummer. The power source is disposed in the hollow body. The motor is in electrical communication with the power source. The regulator is in electrical communication with both the motor and the power source. The regulator is configured to selectively adjust a rotational speed of the motor. The strummer is rotatably disposed on the disk. The strummer is configured to be presented to strings of a stringed instrument upon rotation of the motor to strum the strings.
    Type: Grant
    Filed: June 21, 2019
    Date of Patent: October 13, 2020
    Inventors: Mitchell Duane Campbell, Tim Richard Townsend
  • MOTORIZED INSTRUMENT STRUMMER
    Publication number: 20190392794
    Abstract: A hand-held strumming device includes a hollow body, a power source, a motor, a regulator, and a strummer. The power source is disposed in the hollow body. The motor is in electrical communication with the power source. The regulator is in electrical communication with both the motor and the power source. The regulator is configured to selectively adjust a rotational speed of the motor. The strummer is rotatably disposed on the disk. The strummer is configured to be presented to strings of a stringed instrument upon rotation of the motor to strum the strings.
    Type: Application
    Filed: June 21, 2019
    Publication date: December 26, 2019
    Inventors: Mitchell Duane Campbell, Tim Richard Townsend