Hybrid Pneumatic-Mechanical Variable Configuration Wheel.
OFFICE OF THE SECRETARY OF THE ARMY WASHINGTON D C
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The patent discloses a variable-geometry-type vehicle wheel whose profile can be automatically changed as required from a circular configuration for normal operation on roads to an elliptical configuration for off-the-road travel to increase traction. The profile of the wheel, formed with a flexible pneumatic spoke membrane and resilient rim is changed from a circular shape to an elliptical shape by canting the wheel hub disks relative to the wheel shaft centerline.
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