A tank collar has an adjustable mounting surface for a containment sump, such that the containment sump may be adjusted on the tank collar to be substantially plumb, even if the tank collar itself is not plumb. In particular, the containment sump wall is angularly adjustable with respect to the tank collar, which is fixed to an underground storage tank (UST). This angular adjustability facilitates a method of installation in which imperfect angular orientation of the tank collar and UST may be compensated for by angular adjustment of the containment sump wall. During and after such angular adjustment, a consistent seal between the containment sump wall and the tank collar is maintained, such as in the form of a continuous line of contact around the circumference of the interface between the tank collar and the containment sump wall.

A proppant discharge system includes a container having an outlet formed at a bottom thereof, a gate affixed at the outlet and positioned on the floor of the container so as to be movable between a first position covering the outlet to a second position opening the outlet, a support structure having the container positioned on the top surface thereof. The support structure has at least one actuator affixed thereto. The actuator is positioned so as to move the gate between the first position and the second position. The container has a cage affixed on the floor thereof in a position over the outlet. The gate is positioned within the cage and is movable by the actuator so as to open the gate so as to allow proppant to be discharged therefrom.

A proppant discharge system includes a container having an outlet formed at a bottom thereof, a gate affixed at the outlet and positioned on the floor of the container so as to be movable between a first position covering the outlet to a second position opening the outlet, a support structure having the container positioned on the top surface thereof. The support structure has at least one actuator affixed thereto. The actuator is positioned so as to move the gate between the first position and the second position. The container has a cage affixed on the floor thereof in a position over the outlet. The gate is positioned within the cage and is movable by the actuator so as to open the gate so as to allow proppant to be discharged therefrom.

The present railway car hatch cover latch assembly includes a latch plate. One end of the latch assembly rod is affixed to a bracket, with the adjustable end usually comprising an eye at the end of a threaded shaft. The threaded shaft is received in a keeper. The keeper in turn supports and holds a coil spring between the eye and the keeper cap. A bent hooking rod has two upturned ends that hold the end of the coil spring nearest the eye. The center of the bent hooking rod extends from the keeper to form a receiver. A latch plate includes a pivot rod that extends through the receiver of the bent hooking rod. The latch paddle itself contacts and holds the hatch cover is a compressively closed position against the railway car hatch ring.

The invention relates to an assembly (10) of a tank container (20), an inliner (40) and a connection unit (60) for the transport and/or storage of a liquid. The inliner is present in the tank container and the outlet of the inliner is connected to the drain hole (25) of the tank container. A connection unit is present that secures the connection of both outlets and at the same time provides a liquid tight and an air tight connection with an external unit for the delivery or discharge of the liquid contents.

The invention relates to an assembly (10) of a tank container (20), an inliner (40) and a connection unit (60) for the transport and/or storage of a liquid. The inliner is present in the tank container and the outlet of the inliner is connected to the drain hole (25) of the tank container. A connection unit is present that secures the connection of both outlets and at the same time provides a liquid tight and an air tight connection with an external unit for the delivery or discharge of the liquid contents.

A tank suited for use as a septic tank or for otherwise holding or treating water has a top hatchway large enough to enable an adult person to enter the tank. The hatchway is closed by a lid which has a port with a removable cover, where the port that is large enough to enable through-passage of a suction line for cleaning the tank, but small enough to prevent a child from entering the tank. Preferably the port area is less than 6 percent of the effective area of the lid and the centerline of the port lies at a location which is between 20 to 80 percent of the radius of the lid.

A transport container for transporting a hub and vanes of a fan prior to assembly of the fan includes a body having a floor and defining an interior having a top opening. The transport container also includes a lid that removably covers the top opening. A divider wall is positioned within the interior so that the interior is divided into first and second internal compartments that hold the vanes of the fan. A hub post is positioned within the interior of the body. The hub post has a bottom end portion attached to the floor and a top end portion that is inserted into a central opening of the hub of the fan.

A transport container for transporting a hub and vanes of a fan prior to assembly of the fan includes a body having a floor and defining an interior having a top opening. The transport container also includes a lid that removably covers the top opening. A divider wall is positioned within the interior so that the interior is divided into first and second internal compartments that hold the vanes of the fan. A hub post is positioned within the interior of the body. The hub post has a bottom end portion attached to the floor and a top end portion that is inserted into a central opening of the hub of the fan.

An equipment shipping, storage, and maintenance support system that includes a cover assembly including a variety of features and a mobile maintenance platform (MMP) coupled to the cover assembly via a plurality of latches. The MMP includes retractable wheel assemblies which enable lateral movement on a support surface in proximity to an end item with an equipment item mounted thereon (e.g., an aircraft with an aircraft radar). The MMP includes a vertical lift system that attaches or detaches from the equipment item to raise or lower the equipment item during maintenance activities. The cover can be installed on the MMP to provide protection against external environment in a storage or transit/shipping modes. The MMP also includes removable jacks which enable raising or lower of the MMP either during maintenance to reorient the equipment item for maintenance or storage purposes to include mitigate of undesirable environmental impacts from storage.