The described systems can include any suitable component that allows them to move material (e.g., gravel and/or another bulk material), under at least a portion of a frame or other portion of a vehicle, and from one portion of the vehicle to another portion. In some cases, the systems include a chip spreader that includes a motorized vehicle and a material transfer device that is configured to move the material from a first end of the motorized vehicle to a second end of the motorized vehicle. In some cases, the material transfer device is disposed below an axle, frame, drivetrain, radiator, and/or other component of an undercarriage of the motorized vehicle. In some cases, the material transfer device includes one or more conveyors, augers, vibrators, gravity slides, and/or pneumatic systems that are configured to move the material. Other implementations are described.

A gooseneck trailer having an elevated hopper at the forward end thereof and a deck at the rearward end of the trailer for supporting a vehicle thereon. The hopper has a discharge opening formed in the lower end thereof at one side thereof and a discharge door, which is movable between open and closed positions, selectively closes the discharge opening. Locking devices are provided for locking the discharge door in its closed position.

A gooseneck trailer having an elevated hopper at the forward end thereof and a deck at the rearward end of the trailer for supporting a vehicle thereon. The hopper has a discharge opening formed in the lower end thereof at one side thereof and a discharge door, which is movable between open and closed positions, selectively closes the discharge opening. Locking devices are provided for locking the discharge door in its closed position.

A dry-bulk tanker for the provision of binding agents for soil stabilization for a spreading device comprises a storage container (10) for binding agent. A mechanical conveying device (18) for conveying binding agents from the storage container (10) into an intermediate chamber (20) is connected to the storage container (10). A pneumatic conveying device (36) for conveying the binding agent to the spreading device is connected to the intermediate chamber (20). A pressure relief device (40, 41) is connected to the mechanical conveying device in order to avoid the entry of compressed air into the storage container (10). The invention furthermore relates to a conveying system for a dry-bulk tanker and to a work train for working soils with a self-propelled ground working machine and a dry-bulk tanker.

A dry bulk tank and a method of carrying a load and discharging a load therefrom. The dry bulk tank includes a tank assembly having a first wall that bounds and defines a first compartment for carrying a load therein and a second wall spaced outwardly from at least a portion of the first wall; wherein a second compartment is defined between the first wall and the second wall. The tank assembly includes an air piping system that is selectively actuated to place the first compartment and the second compartment under equal air pressure. In one example the air piping system pumps air into the first compartment and the second compartment. In another example the air piping system evacuates air from the first and second compartments.

A dry bulk tank and a method of carrying a load and discharging a load therefrom. The dry bulk tank includes a tank assembly having a first wall that bounds and defines a first compartment for carrying a load therein and a second wall spaced outwardly from at least a portion of the first wall; wherein a second compartment is defined between the first wall and the second wall. The tank assembly includes an air piping system that is selectively actuated to place the first compartment and the second compartment under equal air pressure. In one example the air piping system pumps air into the first compartment and the second compartment. In another example the air piping system evacuates air from the first and second compartments.

An auger mountable gate control assembly for a hopper trailer with a gate, and including an actuator, a driver connected to the gate, a torque limiter, a keyed telescoping assembly and one or more universal joints. A bin mountable gate control assembly for a bin with a gate, and including an actuator, a driver connected to the gate, a force limiter, and visual indication system for flow and/or gate position. A hopper assembly for an auger, and including a housing, an inlet, a first actuator for raising and lowering the inlet, and a second actuator for moving a gate covering an opening of the auger.

An auger mountable gate control assembly for a hopper trailer with a gate, and including an actuator, a driver connected to the gate, a torque limiter, a keyed telescoping assembly and one or more universal joints. A bin mountable gate control assembly for a bin with a gate, and including an actuator, a driver connected to the gate, a force limiter, and visual indication system for flow and/or gate position. A hopper assembly for an auger, and including a housing, an inlet, a first actuator for raising and lowering the inlet, and a second actuator for moving a gate covering an opening of the auger.

According to one or more embodiments, a hand-held, portable opener for a hopper trailer and method of opening is described. The hopper trailer opener comprises a base tool assembly coupled with an extension shaft assembly and can be adapted for use with a variety of different trailer opening mechanisms.

A dry bulk tank and a method of carrying a load and discharging a load therefrom. The dry bulk tank includes a tank assembly having a first wall that bounds and defines a first compartment for carrying a load therein and a second wall spaced outwardly from at least a portion of the first wall; wherein a second compartment is defined between the first wall and the second wall. The tank assembly includes an air piping system that is selectively actuated to place the first compartment and the second compartment under substantially similar or substantially equal air pressure. In one example the air piping system pumps air into the first compartment and the second compartment. In another example the air piping system evacuates air from the first and second compartments.