A mobile welding system that does not rely exclusively on a track to define the path of the welder. One embodiment includes a mobile welder adapted to move along a work piece. The mobile welder includes a chassis, including a welding implement, and a travel assembly configured to support the chassis over a portion of the work piece. The mobile welder also includes a motor assembly configured to selectively cause the chassis to move relative to the work piece. The mobile welder further includes a chassis holder, having a magnet assembly, configured to provide a force holding the chassis a selected distance from the work piece. The magnet assembly includes a magnet rotatably mounted between a ferrous material and a non-ferrous material to selectively control application of a magnetic field toward the work piece.

Particular embodiments disclosed herein provide a retractable guard assembly coupled to a caster of a mobile equipment, comprising one or more first guards comprising corresponding one or more guard toeholds and one or more second guards. When the one or more first guards and the one or more second guards are in a fully retracted state, fully compressing any one of the one or more guard toeholds causes the one or more first guards and the one or more second guards to transition into a fully deployed state. When the one or more first guards and the one or more second guards are in a fully deployed state, fully lifting any one of the one or more guard toeholds causes the one or more first guards and one or more second guards to transition into the fully retracted state.

A vehicle assembly, includes, among other things, an accessory usable as a climbing ladder to access an area of a vehicle. The accessory is also configured to be used as a recovery board. A method of using a vehicle accessory includes, among other things, accessing a vertically upper area of a vehicle using an accessory as a climbing ladder, the accessory also usable as a recovery board.

A tooth for a compactor vehicle that includes a base and a cap. The base comprises a body and a retention feature. The body defines an underside, configured to engage a wheel of the compactor vehicle, and an opposing cap-facing side. The cap comprises an outer surface and a retention feature. The outer surface defines a compaction surface. The retention features of the base and cap interlock with one another to secure the cap to the base. A cavity is defined in the underside of the base.

A traction sleeve roller featuring an inner roller and a secured outer traction sleeve that may be rotatably powered when operable to a motor. The outer traction sleeve may be radially offset from the inner roller by a plurality of supporting members positioned between the outer traction sleeve and the inner roller. The plurality of supporting members may secure a plurality of traction members about the inner roller. The plurality of traction members may have a plurality of traction points. A plurality of outer passages pass between the plurality of traction members. A plurality of inner passages pass between an interior surface of the outer traction sleeve and a surface of the inner roller. A foulant may be directed through the plurality of outer passages into the plurality of inner passages when the traction sleeve roller is engaged with a surface having fouling conditions.

A system is provided for retractably deploying traction of a wheel. The system includes a set of grippers, each gripper having a cleat and a radially disposed strut. The system further includes a set of first poles, each first pole coupled to one of the struts, the first pole configured to support motion of its corresponding strut between a parked position and an engaged position, wherein, in the engaged position, the corresponding cleat is axially disposed and engaged against the tread of the wheel and, in the parked position, the corresponding cleat is disengaged from the tread of the wheel. The system includes a first faceplate configured to rotate with the wheel. The system further includes a cleat deployment mechanism having a second faceplate rotatably coupled to the first faceplate, and a set of second poles, each second pole coupled to one of the struts and to the second faceplate.

To provide a stage-corresponding caster device being entirely compact, able to smoothly and stably work, and able to easily get over a stage end face, a holder main body 1 attached to an attached member B and having a pair of left and right side wall portions 10, a main wheel supporting member 2 in which the main wheel 7 is pivoted to a lower portion 2b and an upper portion 2a is pivoted to the holder main body 1, a sub wheel supporting member 3 in which the sub wheel 8 is pivoted to a front portion 3c and a rear portion 3d is pivoted to the main wheel supporting member 2 coaxially with the main wheel 7, and a slide roller 30 attached to the sub wheel supporting member 3 on a forward position to the main wheel 7, are provided; and the holder main body 1 has a guiding groove 13 inclined backward and downward in side view on the side wall portion 10 to guide the slide roller 30, the front portion 3c of the sub wheel supporting member 3 is oscillated downward by contact of the main wheel 7 with the stage end face Ja, the sub wheel 8 is pressed to the stage upper face Jb, and the main wheel 7 climbs over the stage end face Ja.

The device will be placed on the outside surfaces of the tire of a car or truck in the event that the car or truck is stuck either in sand or other soft surface or pothole. On either end of the device will be a pair of shoes or flat surfaces that will grip the surface as the tire begins to rotate. Once the tire is safely out of the problem area and back on a sold road surface, the device is removed and then stowed. The device can be used on any tire of any type of vehicle.

A system is provided for retractably deploying enhanced traction of a wheel having a tread and an axis of rotation. The system includes a set of grippers, each gripper having a cleat and a radially disposed strut. The system further includes a set of strut mounts, each strut mount coupled to one of the struts, the strut mount configured to support motion of its corresponding strut between a parked position and an engaged position, wherein, in the engaged position of such strut, the corresponding cleat is axially disposed and engaged against the tread of the wheel and, in the parked position of such strut, the corresponding cleat is disengaged from the tread of the wheel. The system further includes a cleat deployment mechanism, coupled to the struts, configured on actuation to cause automatic deployment of the struts into the engaged position.

A transformable wheel assembly includes a spoke frame and a central gear coupled to the spoke frame. A plurality of legs are pivotably coupled to the spoke frame. The plurality of legs include an arcuate outer surface and an arcuate distal interior edge. A plurality of leg teeth are formed on the arcuate distal interior edge. The leg teeth engage the central gear such that the central gear drives the plurality of legs between a closed position and an open position based on a direction of rotation of the central gear.