Abstract: A vehicle frame structure including a pair of elongated mid bay rails with a cross beam extending between rear ends of the pair of mid bay rails. A pair of elongated rear bay rails define an overlapping joint with the pair of elongated mid bay rails, wherein a first pair of reinforcement members connect forward ends of the pair of rear bay rails to the pair of elongated mid bay rails and a second pair of reinforcement members connect rearward ends of the pair of mid bay rails to the pair of elongated rear bay rails.

Abstract: A steerable cart or trailer is towed by another vehicle. A reverse linkage made up of arms that crisscross one another extends between the tow vehicle and the steerable trailer. The linkage arms are parallel a distance from the tow vehicle before crisscrossing with one another towards the trailer. The linkage arms are rotatable at each end. This allows the arms to rotate in a manner in which the trailer will more closely follow the path of the tow vehicle, especially when the tow vehicle is in the process of turning. The trailer will follow in a manner that reduces compaction and provides a simpler overall operation of equipment.

Abstract: A trackless train with complementary steering couplings between axles and cars transmits steering forces from one axle to the next, in succession. Couplings couple axles of cars, as well as adjacent axles between adjacent cars. Each axle assembly may either pivot about a central bearing or include a pivoting steering arm for each wheel that pivots about a steering pin, with wheels on the inside of a turn pivoting more than wheels on the outside of a turn. Differentials may be provided to transfer power to each wheel, including from car to car.

Abstract: The Snow Rider provides two separate platforms, each equipped with a pair of truck mounted skis, interconnected via a centerline articulated spar. Each platform undergoes an angle change before articulating with the trucks. This angle change is referred to herein as the truck angle, which determines the degree to which the skis turn relative to the long axis of the Snow Rider for a given amount of rotation of the platform about the centerline. The trucks translate leaning by the rider into a redirection of the skis, which through the use of ski riser mechanisms between the platforms and skis, are simultaneously rotated about their long axis to get the skis up on edge and in contact with the snow.

Abstract: The present invention relates to a four-wheel drive vehicle which on account of its constructive composition has very good off-road characteristics, in addition to which the vehicle can be adapted to a number of transport requirements and can act as a tool carrier. The vehicle is substantially frameless in the traditional sense with a front and rear rigid differential axle mounted on a beam or frame extending centrally in the vehicle's longitudinal direction, where at least one of the axles can rotate about the vehicle's longitudinal axis, while at the same time both of the vehicle's axles are each steered in the opposite direction to each other about their axes perpendicularly to the vehicle's longitudinal axis.

Abstract: A light transport vehicle (10) which is directly steerable by a person or persons standing on the vehicle, which vehicle includes (a) an elongated, flexible platform (11); (b) a leading two-part carriage (20) and a trailing two-part carriage (30) slung to the underside of the platform; (c) a set of wheels or rollers (14, 15, 16, 17) rotatably attached to each of the two-part carriages; and (d) two diagonally-located struts (25, 26) attached to and joining outer, laterally opposing ends (27, 28, 37, 38) of the two-part carriages. Each two-part carriage includes two parallel, laterally-extending suspension members (21, 22, 31, 32).

Abstract: A wheeled sled is provided with crossed steering bars pivoted to each of the rear axle brace, front axle brace and steering handle. The steering bars pivot the axle braces in opposite directions as the steering handle is moved to minimize the turning circle. Longitudinally extending coil springs bias the steering handle to a neutral position. Handle grip brakes are provided on the steering handle for braking the front wheels.