With Separate Annulus Guide Patents (Class 152/46)
  • Publication number: 20020153075
    Abstract: A land vehicle wheel in which the inner annular pneumatic shock absorber element 3 is located within the wheel itself, and not in contact with the roadbed, as is the case with the pneumatic tire in prior art. The inner annular pneumatic shock absorber element is made of flexible resilient material and is fitted within the wheel between two annular rims with facing concave surfaces 2,4. Air tight pressure seals are made between the inner annular pneumatic shock absorber element 3 and the inner annular rim 4. The interacting force between the two annular rims 2,4, due to the pneumatic pressure in the annular shock absorber element, creates a strong and stable link between these rims. The friction tread 1, in contact with the roadbed, is located on the periphery of the outer annular rim 2. The tread may be made from a resilient solid rubber or plastic compound with grooves cut into it, or designs molded into it.
    Type: Application
    Filed: April 23, 2001
    Publication date: October 24, 2002
    Inventor: Willard H. Schmidt
  • Patent number: 6322153
    Abstract: An outer wheel, tire and rim, is mounted onto an inner wheel or hub and is adapted for low friction rotation on the hub. An arm is pivotally attached to the inner wheel and carries a receiver for the axle upon which the wheel is mounted so that the axle is positionable over an arc of rotation about the pivot point of the arm. The arm is biased by an elastomeric body so that as the arm moves over its arc of rotation, the elastomeric body is compressed. As the wheel rotates under load, road shocks are transferred to the biasing device which acts as a shock absorber.
    Type: Grant
    Filed: June 30, 2000
    Date of Patent: November 27, 2001
    Inventor: Morten Andre Lund