This disclosure is directed toward a heated tailgate for use in cold climates. The heated tailgate may be used with a self-contained heated portable vacuum slurry box. The slurry box generally includes a vacuum tank, a structure attached to the tank, a vertical tailgate, and a hook for pulling the slurry box onto a vehicle. The heated tailgate provides that the slurry cuttings within the slurry box which are adjacent to the tailgate do not freeze and provides for a way in which the tailgate may seal to the vacuum box.

A gull wing door-type hazardous material container system allowing for easy loading and unloading of intermediate bulk containers is provided. The container system minimizes a loss of cold air fully filling the inside for safe work when only some of a plurality of intermediate bulk containers is selectively loaded. The container system includes a body that has a loading space to load airtight containers containing hazardous material and is opened at both sides and a pair of gull wing doors independently operated to open/close both sides of the body. Additionally, the system includes a partition plate longitudinally disposed in the body and divides the loading space into independent spaces of first and second loading spaces respectively. Cooling units are disposed in the first and second loading spaces, respectively, to independently supply cold air, in which the first and second loading spaces can be independently sealed by the gull wing doors.

A temperature-controlled tank body having an integrated heat transfer panel is disclosed. The tank body may be mounted to a truck, trailer, or other mobile equipment and used for transporting a fluid at a temperature that is greater than that of the ambient environment. In an illustrative embodiment, the tank includes a barrel segment having a first sheet and an adjacent second sheet. The first sheet is joined to the second sheet along a first edge and a second, opposing edge. The first sheet is also joined to the second sheet at a plurality of locations between the first edge and second, opposing edge and enclosed at the ends to form a fluidly-sealed area. The tank includes a fluid inlet to facilitate pressurization of the fluidly-sealed area to generate a hydroformed cavity between the first sheet and the second sheet.

The present invention relates to a gull wing door-type hazardous material container system that allows for easy loading and unloading of intermediate bulk containers and minimizes a loss of cold air fully filling the inside for safe work when only some of a plurality of intermediate bulk containers is selectively loaded.

The gull wing door-type hazardous material container system according to the present invention includes: a body that has a loading space therein to load airtight containers keeping a hazardous material and is opened at both sides; a pair of gull wing doors that is independently operated to open/close both sides of the body; a partition plate that is longitudinally disposed in the body and divides the loading space into independent spaces of a first loading space and a second loading space; and cooling units that are disposed in the first loading space and the second loading space, respectively, to independently supply cold air, in which the first loading space and the second loading space can be independently sealed by the gull wing doors.

A cooling system for a mobile bulk tank can include a heat exchanger disposed to remove heat from a top wall of the mobile bulk tank. A flow system can be configured to move coolant through the heat exchanger to cool the bulk tank.

An exchanger for a tank is described herein. The exchanger may be relied upon in a trailer tank, for example, or any other type of tank that stores fluid. The exchanger includes an inlet, a central fluid conduit, one or more exchanger extension arms having fluid apertures that direct fluid into a tank at various locations, and one or more supports that support the central fluid conduit and the exchanger extension arms. The fluid apertures may be positioned relatively evenly across the exchanger extension arms and/or the central conduit to direct fluid up or at various directions into the tank. Thus, fluid pumped into the inlet of the exchanger may flow through the central conduit, into the exchanger extension arms, and out through the fluid apertures at various locations into the tank. As such, heated fluid, for example, may be more evenly and quickly distributed into the tank.

A low-temperature container, low-temperature tank and low-temperature tank truck are provided. The low-temperature container includes a housing and an inner container disposed inside the housing through a support assembly. The support assembly includes two transverse support structures correspondingly disposed between the housing body and inner container body, and two longitudinal support structures respectively disposed between the outer sealing head and the inner sealing head located at ends. An central lines of the two longitudinal support structures and an central axis of the inner container are collinear, or the central lines of the two longitudinal support structures are parallel to the central axis of the inner container, and the longitudinal support structures may extend and retract in the longitudinal direction of the low-temperature container. The low-temperature container of the present disclosure has balanced support points and good heat insulation effect.

An insulated rear head for a tank comprising an outer head and an inner head. The inner head is spaced away from the outer head, creating an insulation cavity. The insulation cavity is filled with an insulating material to prevent heat gain or loss from the product contained within the tank.

A transportation trailer can include a cargo tank with a shell that includes an outer wall, an inner wall, and an insulating core between the outer wall and the inner wall. The shell can be unsupported by structural rings, and the cargo tank can be a frameless cargo tank. The cargo tank can be formed by decoiling respective coils of inner-wall material, outer-wall material, and insulating-core material, joining the inner-wall material, the insulating-core material, and the outer-wall material to form a sandwich-type panel, and welding the sandwich-type panel to form the shell.

The hydraulic system includes a reservoir configured to store hydraulic fluid, an actuator, a first conduit coupling the reservoir to the actuator, a second conduit having a first end and a second end, a first valve positioned between the first end of the second conduit and the first conduit, a second valve positioned between the second end of the second conduit and the first conduit, and a pump configured to drive the hydraulic fluid from the reservoir to the actuator. The hydraulic fluid flows through the first conduit to the actuator when the first valve is in a first position. The hydraulic fluid flows partially through the first conduit, through the second conduit, back to the first conduit, and to the actuator when the first valve is in a second position.