Abstract: A three-wheeled vehicle for on-road use with a modular front headlight system that complies with both United States and European Community laws is disclosed. The modular system includes a headlight module, an air intake module, and a fairing module.

Abstract: An all-terrain vehicle with improved stability is provided. The all-terrain vehicle includes a frame that is substantially centered on a longitudinal centerline of the vehicle, an engine, a plurality of wheels that are attached to a front axle and a rear axle, a handle bar that is operatively connected to at least two of the wheels, and a straddle seat. A fuel tank is fluidly connected to the engine, and is disposed forward of the rear axle, substantially above a rear suspension pivot point, and below the seat, and is substantially centered on the longitudinal centerline, thereby improving the stability of the all-terrain vehicle.

Abstract: A drive system for a vehicle is described having a rubber mounted engine that provides a co-planar drive sprocket and driven sprocket. An articulated link located in the drive train between the engine and the drive sprocket allows independent movement of the engine with respect to the drive sprocket. The drive sprocket is rotationally held either by the frame member or the swing arm member.

Abstract: A frame for an ATV comprises a support module with a central opening defining an engine receiving space. The support module includes a first frame member and a second frame member with at least one cross member extending between the first and second frame members. At least a portion of the support module, which includes one of the frame members and the at least one cross member, consists essentially of a single beam. The single beam may be considered a modular central beam of the frame.

Abstract: A three-wheel vehicle has two forward steered wheels, one rear powered wheel, and a straddle-type seat disposed between the forward and rear wheels. The vehicle's frame has interconnected tubular members that create a strong, light, rigid frame that can accommodate a high performance engine. The frame's components include upper spars, lower spars, rear suspension plates, a front suspension sub-frame, rear suspension braces, a pyramid-shaped upper support assembly, various cross braces, and a rear sub-frame, among other components. Two or more of the frame components may be integrally formed and removably connected to the other frame components to simplify assembly, maintenance, and replacement. The frame is designed to lower the center of gravity of the vehicle and rider so as to stabilize the vehicle. The front suspension sub-frame includes a longitudinal air passage that directs air into the engine compartment and around an oil cooler.

Abstract: A vehicle has a progressive steering system that includes a variable-length moment arm, the length of which varies as a function of a steering angle of the steering system. As the steering system is pivoted away from a neutral position, the torque that must be applied to a steering actuator to pivot the steered device and a rate of steering movement of the steered device per degree or rotation of the steering actuator both increase. The variable-length moment arm is formed by offset pivoting swivel and guide arms. A ball bearing that is fixed to the guide arm engages a groove formed in the swivel arm. Consequently, the ball bearing defines a force acting point that is located a variable distance from the swivel arm's pivotal axis.

Abstract: An all terrain vehicle frame includes an upper member, a lower member, a forward cross member and a rearward cross member defining a central opening. An engine is disposed in the central opening and is attached to the frame. A swing arm for supporting a shaft member of outboard wheel assemblies is pivotally attached to the frame and the engine. The swing arm has a tapered shape that increases in width from a second end including a shaft support member to a first end including two bifurcated end portions and a frame accommodating portion. Each of the two bifurcated end portions includes a journal that is rotatably supported by a transverse member that passes through the journals, the frame and the engine. The journals are provided on opposite sides of the central opening. A dampener is connected between the engine and the swing arm to reduce vibrations transmitted from the engine to the frame.

Abstract: A frame for an ATV comprises a support module with a central opening defining an engine receiving space. The support module includes a first frame member and a second frame member with at least one cross member extending between the first and second frame members. At least a portion of the support module, which includes one of the frame members and the at least one cross member, consists essentially of a single beam. The single beam may be considered a modular central beam of the frame.

Abstract: Novel aminoglycoside-aminocyclitol derivatives corresponding to the general formula: ##STR1## wherein R.sub.1 and R.sub.2, which are different, represent hydrogen or CH.sub.2 NH.sub.2 and R is selected from the group consisting of: ##STR2## wherein R.sub.3 represents NH.sub.2 or OH and R.sub.4 represents ##STR3## wherein R.sub.5 represents hydrogen or methyl and the pharmaceutically acceptable acid addition salts thereof.They are useful as antibiotics.