With Plungers Patents (Class 152/291)
  • Robotic floor cleaning device with expandable wheels
    Patent number: 10214050
    Abstract: A mobile robotic floor-cleaning device with wheels that may be expanded or contracted to suit various needs by rotating an inner shaft within the main housing of each wheel relative to the main housing. A series of rollers form the circumference of the wheels, and are connected to the inner shaft via a set of spokes. Rotation of the inner shaft relative to the main housing causes the spokes to pull the rollers in or push them out, changing the diameter and circumference of the wheel.
    Type: Grant
    Filed: March 2, 2017
    Date of Patent: February 26, 2019
    Assignee: Al Incorporated
    Inventors: Ali Ebrahimi Afrouzi, Shahin Fathi Djalali
  • Universal traction wheel and associated vehicle
    Patent number: 9757978
    Abstract: A universal traction device for movement over even and uneven supporting surfaces that includes an all-terrain wheel having a circular wheel assembly with a plurality of spoke-containing components arrayed around an outer perimeter wheel edge and control means for extending spokes from the spoke-containing units when encountering an obstacle that the vehicle is to traverse and retracting the spokes when the spokes are no longer required for traversing the obstacle.
    Type: Grant
    Filed: July 7, 2015
    Date of Patent: September 12, 2017
    Inventor: Jonathan D. Emigh