Patents by Inventor Benjamin L. Waldera

Benjamin L. Waldera 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).

  • Debris blower with sound attenuation resonator
    Patent number: 12492715
    Abstract: A blower apparatus includes a fan and motor generating an airflow from an inlet end to an outlet end of the debris blower. The airflow defines an airflow axis and a cross-sectional plane normal to the airflow axis. An enclosure provides an airflow path towards the outlet end. A resonant chamber is proximate an airflow entrance end of the enclosure. The resonant chamber has first and second sections encompassing corresponding first and second volumes of different sizes. The different sizes are selected to form an acoustic resonator. The acoustic resonator attenuates noise from the blower over a selected attenuation frequency range.
    Type: Grant
    Filed: June 9, 2025
    Date of Patent: December 9, 2025
    Assignee: THE TORO COMPANY
    Inventors: Benjamin L. Waldera, Samuel M. Mahaffey, David W. Johnson
  • DEBRIS BLOWER WITH SOUND ATTENUATION RESONATOR
    Publication number: 20250297620
    Abstract: A blower apparatus includes a fan and motor generating an airflow from an inlet end to an outlet end of the debris blower. The airflow defines an airflow axis and a cross-sectional plane normal to the airflow axis. An enclosure provides an airflow path towards the outlet end. A resonant chamber is proximate an airflow entrance end of the enclosure. The resonant chamber has first and second sections encompassing corresponding first and second volumes of different sizes. The different sizes are selected to form an acoustic resonator. The acoustic resonator attenuates noise from the blower over a selected attenuation frequency range.
    Type: Application
    Filed: June 9, 2025
    Publication date: September 25, 2025
    Inventors: Benjamin L. Waldera, Samuel M. Mahaffey, David W. Johnson
  • Debris blower with sound attenuation resonator
    Patent number: 12345278
    Abstract: A blower apparatus includes a fan and motor generating an airflow from an inlet end to an outlet end of the debris blower. The airflow defines an airflow axis and a cross-sectional plane normal to the airflow axis. An enclosure provides an airflow path towards the outlet end. A resonant chamber is proximate an airflow entrance end of the enclosure. The resonant chamber has first and second sections encompassing corresponding first and second volumes of different sizes. The different sizes are selected to form an acoustic resonator. The acoustic resonator attenuates noise from the blower over a selected attenuation frequency range.
    Type: Grant
    Filed: May 31, 2024
    Date of Patent: July 1, 2025
    Assignee: THE TORO COMPANY
    Inventors: Benjamin L. Waldera, Samuel M. Mahaffey, David W. Johnson
  • DEBRIS BLOWER WITH SOUND ATTENUATION RESONATOR
    Publication number: 20240401613
    Abstract: A blower apparatus includes a fan and motor generating an airflow from an inlet end to an outlet end of the debris blower. The airflow defines an airflow axis and a cross-sectional plane normal to the airflow axis. An enclosure provides an airflow path towards the outlet end. A resonant chamber is proximate an airflow entrance end of the enclosure. The resonant chamber has first and second sections encompassing corresponding first and second volumes of different sizes. The different sizes are selected to form an acoustic resonator. The acoustic resonator attenuates noise from the blower over a selected attenuation frequency range.
    Type: Application
    Filed: May 31, 2024
    Publication date: December 5, 2024
    Inventors: Benjamin L. Waldera, Samuel M. Mahaffey, David W. Johnson