Abstract: A trailer having an aerodynamic skirt that includes a valve access panel is disclosed. The trailer includes a tank for transporting cargo and a valve at the base of the tank for accessing unloading the cargo from the trailer. The aerodynamic skirt extends along a first side of the trailer body that includes the valve and a valve access panel that is configured to cover the valve when closed and to allow access to the valve when open. The apparatus also includes a trailer brake interlock that is communicatively coupled to the valve access panel and a trailer brake to restrict motion of the trailer when the valve access panel is open and to permit motion of the trailer when the valve access panel is closed.

Abstract: A tank trailer for transporting corrosive fluids is disclosed that includes a chassis and one or more cradle supports supporting a corrosion-resistant tank. The chassis is formed from a first material that is a high-strength material. The corrosion-resistant tank has a substantially cylindrical body and a plurality of ring supports, with each such ring support surrounding and reinforcing at least a portion of the cylindrical body. The ring supports may be formed from a material that is the same as, or similar to, the first material used to form the chassis. The first material and second material are joined at interfaces between (1) the cylindrical body and the cradle supports and (2) the cylindrical body and the ring supports. The interfaces comprise a third material that is compatible with the first material and the second material.

Abstract: A container for particulate materials that is adapted to be mounted on a trailer for transport on a roadway includes a plurality of hoppers, a shell that is disposed over the plurality of hoppers, and an internal U-shaped divider plate between each pair of adjacent hoppers.

Abstract: A container for particulate materials that is adapted to be mounted on a trailer for transport on a roadway includes a plurality of hoppers, a shell that is disposed over the plurality of hoppers, and an internal U-shaped divider plate between each pair of adjacent hoppers.

Abstract: A container for particulate materials that is adapted to be mounted on a trailer for transport on a roadway includes a plurality of hoppers, a shell that is disposed over the plurality of hoppers, and an internal U-shaped divider plate between each pair of adjacent hoppers.

Abstract: A system and method aerodynamic fairings including a gap fairing. The gap fairing includes multiple panels. The multiple panels are interconnected utilizing connectors to form a half conical shape extending from a front portion of a trailer. The gap fairing also includes supports connected to the multiple panels through support structure of the trailer.

Abstract: A system and method for aerodynamic fairings including an undercarriage fairing. The undercarriage fairing includes multiple panels including at least two front panels and at least two rear panels. The at least two front panels are connected in a front portion under the trailer. The at least two rear panels are positioned in front of a wheel undercarriage at sides of the trailer. One of the at least two front panels and one of the at least two rear panels are interconnected on both sides of the trailer. The undercarriage fairing further includes supports connected to the frame of the trailer. The supports are connected to the at least two rear panels.

Abstract: A system and method aerodynamic fairings including a gap fairing. The gap fairing includes multiple panels. The multiple panels are interconnected utilizing connectors to form a half conical shape extending from a front portion of a trailer. The gap fairing also includes supports connected to the multiple panels through support structure of the trailer.

Abstract: A system and method aerodynamic fairings including a gap fairing. The gap fairing includes multiple panels. The multiple panels are interconnected utilizing connectors to form a half conical shape extending from a front portion of a trailer. The gap fairing also includes supports connected to the multiple panels through support structure of the trailer.

Abstract: A system and method for aerodynamic fairings including an undercarriage fairing. The undercarriage fairing includes multiple panels including at least two front panels and at least two rear panels. The at least two front panels are connected in a front portion under the trailer. The at least two rear panels are positioned in front of a wheel undercarriage at sides of the trailer. One of the at least two front panels and one of the at least two rear panels are interconnected on both sides of the trailer. The undercarriage fairing further includes supports connected to the frame of the trailer. The supports are connected to the at least two rear panels.