Abstract: A trailer for use with off-road vehicles such as all-terrain vehicles and snowmobiles. The disclosed off-road trailer can be adjusted to accommodate different trailer beds and attachments that can be readily off loaded and can be compactly packaged for shipping and storage. Modules for different conditions (e.g., ground or snow surface) can be implemented for multi-season usage. The disclosed suspension assembly enhances performance and robustness while maintaining cost effectiveness. The utility of the disclosed off-road trailer may be enhanced by grab handles for manual maneuvering, a rear bumper, and an active tail light. The overall design of the off-road trailer enables towing cargo behind a snowmobile or off-road vehicle over rough terrain at higher rates of speed than conventional off-road towable trailers.

Abstract: A vehicle is provided and includes a frame including a tunnel and a front portion, an endless track at least partially positioned within the tunnel, a ski supporting the front portion of the frame, a spindle coupled to the ski, and a front suspension coupled to the spindle. The ski defines a central plane extending vertically and longitudinally, the central plane defining an inboard lateral side and an outboard lateral side, the ski having a bottom surface and a keel extending therefrom on the outboard lateral side. The spindle is coupled to the ski at a first position on the outboard lateral side of the ski. The front suspension is coupled to the spindle at a second position outboard from the central plane of the ski.

Abstract: A snowmobile includes a chassis comprising a bulkhead and a tunnel, a front suspension coupled to bulkhead, a rear suspension coupled to the tunnel, and slide rails coupled to the rear suspension.

Abstract: A snowmobile includes a chassis comprising a bulkhead and a tunnel, a front suspension coupled to bulkhead, a rear suspension coupled to the tunnel, and slide rails coupled to the rear suspension.

Abstract: A snowmobile has an air intake system integrated into the snowmobile body, and with air intake vents facing rearwardly towards the rider. The air intake system includes a plenum defined by a portion of the body and ducting extending within the body. The ducting is porous to allow the air input noise to be dissipated within the engine compartment. The snowmobile further comprises couplings which may be realigned to accommodate wear. A frame coupler allows multiple differently configured frame tubes to be connected to the tunnel. The chassis of the snowmobile includes a casing for receiving the gears which drive the belt.

Abstract: A snowmobile comprises a chassis with a front portion and a tunnel, and a power train unit supported by the chassis. The snowmobile further includes a plurality of ground-engaging members cooperating with the power train unit to operate the snowmobile. The plurality of ground-engaging members includes a pair of front skis and an endless track assembly. The track includes a wide track belt and the snowmobile body portions and chassis are adapted to fit the wide track belt. A rear rack assembly is positioned on a rear of the snowmobile frame and can support a passenger seat.

Abstract: A snowmobile comprises a chassis with a front portion and a tunnel, and a power train unit supported by the chassis. The snowmobile further includes a plurality of ground-engaging members cooperating with the power train unit to operate the snowmobile. The plurality of ground-engaging members includes a pair of front skis and an endless track assembly. The track includes a wide track belt and the snowmobile body portions and chassis are adapted to fit the wide track belt. A rear rack assembly is positioned on a rear of the snowmobile frame and can support a passenger seat.

Abstract: A snowmobile has an air intake system integrated into the snowmobile body, and with air intake vents facing rearwardly towards the rider. The air intake system includes a plenum defined by a portion of the body and ducting extending within the body. The ducting is porous to allow the air input noise to be dissipated within the engine compartment. The snowmobile further comprises couplings which may be realigned to accommodate wear. A frame coupler allows multiple differently configured frame tubes to be connected to the tunnel. The chassis of the snowmobile includes a casing for receiving the gears which drive the belt.

Abstract: A snowmobile has an air intake system integrated into the snowmobile body, and with air intake vents facing rearwardly towards the rider. The air intake system includes a plenum defined by a portion of the body and ducting extending within the body. The ducting is porous to allow the air input noise to be dissipated within the engine compartment. The snowmobile further comprises couplings which may be realigned to accommodate wear. A frame coupler allows multiple differently configured frame tubes to be connected to the tunnel. The chassis of the snowmobile includes a casing for receiving the gears which drive the belt.

Abstract: A snowmobile comprises a chassis with a front portion and a tunnel, and a power train unit supported by the chassis. The snowmobile further includes a plurality of ground-engaging members cooperating with the power train unit to operate the snowmobile. The plurality of ground-engaging members includes a pair of front skis and an endless track assembly. The track includes a wide track belt and the snowmobile body portions and chassis are adapted to fit the wide track belt. A rear rack assembly is positioned on a rear of the snowmobile frame and can support a passenger seat.

Abstract: A snowmobile includes a plurality of ground engaging members, a frame supported by the ground engaging members, and a powertrain assembly supported by the frame. Additionally, the snowmobile includes a front suspension assembly supported by the frame. The front suspension assembly includes an upper control arm operably coupled to the frame and a lower control arm operably coupled to the frame. The lower control arm is forged. At least a portion of the lower control arm includes an artificially-induced area of localized stress, and the lower control arm is configured to absorb energy at the area of localized stress.

Abstract: A method, apparatus, and computer instructions are disclosed for displaying the true status of hierarchical operations being performed in a data processing system. For example, a Z-order layering technique can be used to display simultaneously on a screen the status of a plurality of operations being performed on elements of a hierarchical structure, such as, for example, on an inverted tree directory and a plurality of its sub-trees. Advantageously, the display can be scaled to include operations being performed for many nested levels of the hierarchical structure, without having to increase the overall footprint of the display. Also, an application for copying a directory has to traverse the directory's structure only one time (e.g., during the copying operation), because the application does not need to know in advance the total number of files that have to be copied.

Abstract: A snowmobile has an engine mounted with an exhaust port facing forwardly. A steering post extends substantially along a longitudinal centerline of the vehicle and over a top of the engine. An exhaust outlet is coupled to exhaust port and projects vertically upwardly to a position higher than the engine, and projecting rearwardly between the steering post and frame members. The rider position is re-defined relative to the snowmobile center of gravity.

Abstract: A snowmobile has an air intake system integrated into the snowmobile body, and with air intake vents facing rearwardly towards the rider. The air intake system includes a plenum defined by a portion of the body and ducting extending within the body. The ducting is porous to allow the air input noise to be dissipated within the engine compartment. The snowmobile further comprises couplings which may be realigned to accommodate wear. A frame coupler allows multiple differently configured frame tubes to be connected to the tunnel. The chassis of the snowmobile includes a casing for receiving the gears which drive the belt.

Abstract: A system and method for isolating signal in seismic data representative of a subsurface region of interest including receiving a seismic dataset representative of seismic signal and seismic noise and a seismic data guide; transforming the seismic dataset and the seismic data guide into a domain wherein the seismic data have a sparse or compressible representation to create a first set and a second set of representative coefficients; comparing the first set of representative coefficients to the second set of representative coefficients to identify and select desirable members of the first set of representative coefficients that are within a defined threshold of the second set of representative coefficients to create an improved first set of representative coefficients; and performing an inverse transform of the improved first set of representative coefficients to generate a modified seismic dataset.

Abstract: A vehicle is shown such as a snowmobile, where a frame includes a tunnel and a front frame portion comprised of cast halves. A suspension system is comprised of upper and lower control arms connected to the front frame portion. Some of the frame components are adhesively fixed together. A powertrain is supported by the frame, and is comprised of an engine and a clutch. The clutch includes a clutch guard supporting an oil container. The engine has an exhaust system which extends through the front frame portion. The snowmobile also has a rear snow deflector.

Abstract: A vehicle is shown such as a snowmobile, where a frame includes a tunnel and a front frame portion comprised of cast halves. A suspension system is comprised of upper and lower control arms connected to the front frame portion. Some of the frame components are adhesively fixed together. A powertrain is supported by the frame, and is comprised of an engine and a clutch. The clutch includes a clutch guard supporting an oil container. The engine has an exhaust system which extends through the front frame portion. The snowmobile also has a rear snow deflector.

Abstract: A straddle seat type vehicle with adjustable steering. The vehicle comprises a handlebar adjustment apparatus functionally formed on a chassis that fixes the pivot of a steering post in angular positions about a pivot mechanism. A method of adjusting a steering control position is also included.

Abstract: A method, apparatus, and computer instructions are disclosed for displaying the true status of hierarchical operations being performed in a data processing system. For example, a Z-order layering technique can be used to display simultaneously on a screen the status of a plurality of operations being performed on elements of a hierarchical structure, such as, for example, on an inverted tree directory and a plurality of its sub-trees. Advantageously, the display can be scaled to include operations being performed for many nested levels of the hierarchical structure, without having to increase the overall footprint of the display. Also, an application for copying a directory has to traverse the directory's structure only one time (e.g., during the copying operation), because the application does not need to know in advance the total number of files that have to be copied.

Abstract: A method, apparatus, and computer instructions are disclosed for displaying the true status of hierarchical operations being performed in a data processing system. For example, a Z-order layering technique can be used to display simultaneously on a screen the status of a plurality of operations being performed on elements of a hierarchical structure, such as, for example, on an inverted tree directory and a plurality of its sub-trees. Advantageously, the display can be scaled to include operations being performed for many nested levels of the hierarchical structure, without having to increase the overall footprint of the display. Also, an application for copying a directory has to traverse the directory's structure only one time (e.g., during the copying operation), because the application does not need to know in advance the total number of files that have to be copied.