Concentric With Wheel Axis Patents (Class 152/96)
  • Wheels having shock absorbing characteristics and a surface treatment apparatus using the same
    Patent number: 11458771
    Abstract: A vacuum cleaner can include an upright section, a surface cleaning head coupled to the upright section, and at least one wheel coupled to the surface cleaning head. The at least one wheel can include a hub, a rim, and an absorber. The absorber can extend between the hub and the rim. The absorber can be configured to deform before the rim experiences substantial deformation. A deformation limiter can be provided that is configured to limit the deformation in the absorber.
    Type: Grant
    Filed: August 30, 2018
    Date of Patent: October 4, 2022
    Assignee: SharkNinja Operating LLC
    Inventors: Jason B. Thorne, Pu Zhou, Ming Yao, Gordon Howes