A pneumatic tank trailer is described. A front end cover is positioned over a front portion of the pneumatic tank trailer. The front end cover partially covers and attaches to a front end cone of the tank. The front end cover also covers plumbing and fittings for a pressurization system of the pneumatic tank trailer. The front end cover improves the aerodynamics of the trailer by providing a smooth surface with a large radius transition from the front cover to the tank.

A tank and a method of carrying a load and discharging a load therefrom. The tank includes a body 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. An air piping system 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.

A tank trailer for transporting cargo material includes a tank, and the tank includes a wall portion that defines a longitudinal axis of the tank and an internal chamber adapted to carry the cargo material. The wall portion includes a first sidewall, and the first sidewall includes a first cross-sectional radius of curvature that tapers proceeding in a direction parallel to the longitudinal axis. The wall portion further includes a second sidewall and a third wall. The third wall is coupled to the first sidewall and the second sidewall, and the third wall includes a second cross-sectional radius of curvature that is substantially uniform proceeding in a direction parallel to the longitudinal axis.

A trailer that has a main body having a front bulkhead, an opposing rear bulkhead, an exterior wall operably engaged with the front and rear bulkheads, and at least one interior chamber defined collectively by the front bulkhead, the rear bulkhead, and the exterior wall. The at least one interior chamber is adapted to carry a load. The trailer also includes a removable false bulkhead operably engaged with the main body. The false bulkhead is located a distance away from one of the front bulkhead and the rear bulkhead.

A false bulkhead assembly for engagement with a vehicle, said false bulkhead assembly comprising a frame adapted to be engaged with the vehicle and a cover operably engaged with the frame. The false bulkhead assembly is provided to effectively hide a front bulkhead or a rear bulkhead of a tank trailer. The false bulkhead assembly is provided to hide from public view any staining from the overflow of accumulated precipitation from a trough or other structure on the tank body. The false bulkhead assembly is also provided to display graphics and other similar visual images to provide advertising and marketing characteristics to a specific company when using this false bulkhead assembly of a specific tank trailer or tank vehicle.

A quasi-cylindrical cargo container is formed of a plurality of rigid, curved panels together forming first and second semi-cylindrical shells, and a plurality of rigid, flat extension panels bridging the first and second semi-cylindrical shells. A method of manufacturing the container includes forming the first and second semi-cylindrical shell from the curved panels, forming the quasi-cylindrical shell from the first and second semi-cylindrical shells and the flat extension panels, forming collars conformably encompassing the quasi-cylindrical shell, constricting the collars to compress joints formed at abutting edges of pairs of adjacent panels, rolling the shell and collars sequentially to bring the joints to a lower position, welding inside seams of the joints when at the lower position, removing the collars, rolling the shell sequentially to bring the joints to an upper position, and welding outside seams of the joints when at the upper position.

The hydrocleaner may include a carrier vehicle provided with a frame, as well as an operational assembly which may be removably fixed on the frame of the carrier vehicle. The operational assembly may include two operational modules which may have all the operational equipment, including a first operational module provided with at least one tank and a second operational module provided with at least one pumping system, as well as two subframes. Each of the operational modules may be capable of being fixed on one of these subframes. Each of these subframes may be adaptable to different carrier vehicle frames and may be adapted to the frame of the carrier vehicle on which it is intended to be mounted, which may allow a rapid fitting and a rapid removal of the operational assembly.

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.

A tank and a method of holding a load and discharging a load therefrom. The tank includes a body having a first wall that bounds and defines a first compartment for holding 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.

A tank and a method of carrying a load and discharging a load therefrom. The 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 a 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.