Patents by Inventor Ethan S. Miller

Ethan S. Miller 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).

  • Control arrangement for a propulsion unit for a self-propelled floor care appliance
    Patent number: 7725223
    Abstract: A self propelled upright vacuum cleaner is provided with a Hall effect sensor to provide a Hall voltage that varies according to the position of a handgrip maintained by the vacuum cleaner. A microprocessor generates a PWM control signal to control the movement of the vacuum based on the magnitude of the Hall voltage with respect to various response characteristics, including a non-linear logistic function. As such, the vacuum cleaner imparts a user-friendly responsiveness to the user during the operation of the vacuum cleaner.
    Type: Grant
    Filed: September 26, 2006
    Date of Patent: May 25, 2010
    Assignee: Techtronic Floor Care Technology Limited
    Inventors: Evan A. Gordon, Ethan S. Miller