Abstract: An off road vehicle of the kind having fluid-distensible bag rollers for supporting the vehicle load uses bag rollers which are constructed to afford maximum flexibility in both the walls and tread and which are also constructed to be dynamically balanced.A top drive roller is associated with a bag roller in certain embodiments of the off road vehicle in ways which minimize bag wear.Specific bag constructions are provided for improved operation of the off road vehicle for on-highway use.The bag roller in a fixed position serves as a transport device for supporting and moving material having uneven and/or fragile surfaces and, in a specific embodiment, is mounted in a support for use as a transportation element in a conveyer system, or as a forceful puller for lineal objects, such as pipelines, accommodating uneven dimensions.

Abstract: The bag roller in a fixed position serves as a transport device for supporting and moving material having uneven and/or fragile surfaces and, in a specific embodiment, is mounted in a support for use as a transportation element in a conveyer system, or as a forceful puller for lineal objects, such as pipelines, accommodating uneven dimensions.

Abstract: An off road vehicle of the kind having fluid-distensible bag rollers for supporting the vehicle load uses bag rollers which are constructed to afford maximum flexibility in both the walls and tread and which are also constructed to be dynamically balanced.The vehicle also incorporates suspensions which effectively dampen oscillation of the bag rollers to facilitate and to permit high speed operations of the vehicle across rough terrain.A top drive roller is associated with a bag roller in certain embodiments of the off road vehicle in ways which minimize bag wear.Specific bag constructions are provided for improved operation of the off road vehicle for on-highway use.The vehicle includes two frame sections which are connected to permit frame (yaw) steering and swiveling (roll) between the two sections while preventing a bending between the frame sections (pitch) to thereby provide a strong back mode of operation. When equipped with 4 bags on each frame, the vehicle permits increased speed over rough terrain.

Abstract: An off road vehicle of the kind having fluid-distensible bag rollers for supporting the vehicle load uses bag rollers which are constructed to afford maximum flexibility in both the walls and tread and which are also constructed to be dynamically balanced. The vehicle also incorporates suspensions which effectively dampen oscillation of the bag rollers to facilitate and to permit high speed operations of the vehicle across rough terrain. A top drive roller is associated with a bag roller in certain embodiments of the off road vehicle in ways which minimize bag wear. Specific bag constructions are provided for improved operation of the off road vehicle for on-highway use. The vehicle includes two frame sections which are connected to permit frame (yaw) steering and swiveling (roll) between the two sections while preventing a bending between the frame sections (pitch) to thereby provide a strong back mode of operation.

Abstract: An off road vechile of the kind having fluid-distensible bag rollers for supporting the vehicle load uses bag rollers which are constructed to afford maximum flexibility in both the walls and tread and which are also constructed to be dynamically balanced. The vehicle also incorporates suspensions which effectively dampen oscillation of the bag rollers to facilitate and to permit high speed operations of the vehicle across rough terrain. A top drive roller is associated with a bag roller in certain embodiments of the off road vehicle in ways which minimize bag wear. Specific bag constructions are provided are improved operation of the off road vehicle for on-highway use. The vehicle includes two frame sections which are connected to permit frame (yaw) steering and swiveling (roll) between the two sections while preventing a bending between the frame sections (pitch) to thereby provide a strong back mode of opertion.

Abstract: A suspension for off-road vehicles having a vehicle frame supported on flexible wall, fluid distensible rollers through a plurality of support rolls rotatably mounted to the frame. Each support roll contacts at least one roller, the axes of the rolls being parallel to the axes of the rollers and positioned vertically offset by an angle between 5.degree. and 19.degree. measured from the vertical. Means is also provided for positioning the rollers relative to the support rolls and maintaining a preselected contact pressure therebetween, these pressures being adjustable to accommodate various road and operating conditions.