Abstract: A trailer having a main deck portion having a main deck surface, an upper deck portion having an upper deck surface, a connecting frame assembly, a plurality of rollers elements, and a tailgate. The connecting frame assembly can couple together the main deck portion and the upper deck portion. The roller elements can be arranged in one or more rows and can be mounted in the main deck surface or the upper deck surface so as to cover a substantial portion of the main deck surface or the upper deck surface. The tailgate can be coupled to the main deck portion and can be movable between a closed position and an open position.

Abstract: A semi-trailer for use in hauling grain has four sides and two sloped cargo areas, each having a hopper funnel made of a continuous, unitary polymer material. A door below each hopper is driven by a linear actuator that is disposed above the level of the door. The trailer sidewalls are made of a composite material having inner and outer panels attached to a center panel by adhesive.

Abstract: A trailer for carrying plate glass has an elongated deck and an elongated rigid beam that extends above the deck. The beam supports plate glass transported by the trailer. The deck and the beam may be made from aluminum.

Abstract: A trailer for carrying plate glass has an elongated deck and an elongated rigid beam that extends above the deck. The beam supports plate glass transported by the trailer. The deck and the beam may be made from aluminum.

Abstract: A trailer for carrying plate glass has an elongated deck and an elongated rigid beam that extends above the deck. The beam supports plate glass transported by the trailer. The deck and the beam may be made from aluminum.

Abstract: A saddle frame for a pneumatic bulk trailer includes first and second longitudinal saddle plates and at least one transverse support plate. Each of the saddle plates includes a front end, a rear end, an inner side, a generally arcuate upper edge, and a lower edge having at least three portions. Inwardly-directed edge flanges are formed at each portion of the lower edges. The transverse support plate extends between the inner sides of the saddle plates and is supported on an edge flange of each saddle plate. The upper edges of the saddle plates define support surfaces for engaging a pneumatic vessel of the pneumatic bulk trailer. The saddle plates are configured to be coupled to a front chassis frame and a rear chassis frame of the pneumatic bulk trailer.

Abstract: A dolly includes a frame having a load deck for supporting a load and a plurality of axles coupled to the frame in a generally parallel relationship with wheels rotationally coupled to each side of the axles. Independent drive motors are operatively connected to each of the wheels such that the wheels can be driven completely independently from each other. This independent rotation enables the dolly to rotate in place about a vertical axis as well as minimize a turning radius of the dolly in a skid steer operation.

Abstract: A tow bar suspension system includes a tow bar pivotally connected to a trailer frame, first and second mounts coupling the suspension bar to the tow bar, an elongate connector, and a coupling link. The connector couples the coupling link and the suspension bar, while the coupling link couples the connection bracket and the trailer frame. The suspension bar is angled with respect to a longitudinal axis of the tow bar such that the weight of the tow bar is applied as a torsion force on the suspension bar, which resists this force to suspend the tow bar off a ground surface. The coupling link is adjustable in length to modify the pitch of the tow bar with respect to the ground surface.

Abstract: A tilt bed for a truck or a trailer, the tilt bed being able of carrying loads and providing its own ramp. The tilt bed comprises a frame, and a deck mounted on and supported by the frame, the deck having a front portion and a rear portion. The deck has rollers connected to the front portion, and the frame has tracks mounted at an angle, the tracks for guiding the deck rollers. The trailer bed further comprises a hydraulic cylinder that has a first end connected to the frame and a second end connected to the trailer bed. The hydraulic cylinder has a piston and a cylinder. As the piston moves from an extended state into a retracted state, it causes the trailer bed to move in a rearward position. At the same time, the tracks force the deck rollers in an upward motion and cause the trailer bed to tilt. Finally, the hydraulic cylinder remains parallel to the trailer deck at all times. This orientation is accomplished because the trailer deck and the hydraulic cylinder tilt around a common axis.