A vertical fluid storage tank including a body extending from a first end to a second end and including a substantially oval-shaped cross-section, a top wall connected to the first end of the body, a bottom wall connected to the second end of the body, at least one access opening positioned on the top wall configured for access to an interior cavity of the body, and at least one discharge valve connected to the body. The storage tank is configured to be arranged in at least two positions. The at least two positions include a first position in which the storage tank is arranged parallel to a surface, and a second position in which the storage tank is arranged perpendicular to the surface. A walkway may be positioned in the interior cavity of the body.

A vertical fluid storage tank including a body extending from a first end to a second end and including a substantially oval-shaped cross-section, a top wall connected to the first end of the body, a bottom wall connected to the second end of the body, at least one access opening positioned on the top wall configured for access to an interior cavity of the body, and at least one discharge valve connected to the body. The storage tank is configured to be arranged in at least two positions. The at least two positions include a first position in which the storage tank is arranged parallel to a surface, and a second position in which the storage tank is arranged perpendicular to the surface. A walkway may be positioned in the interior cavity of the body.

A device for opening and closing container lids is configured for controlling the movement of a lid during the opening and closing of the lid. The device includes a fixed plate, which is connected to the container, a spring, which generates a force on the lid, the magnitude of which varies according to the relative position of the lid, and a common rotary shaft that hinges the lid to the fixed plate. The lid receives force of the spring at a point that is remote from the common rotary shaft such that the force exerted by the spring compensates for the weight of the lid.

A device for opening and closing container lids is configured for controlling the movement of a lid during the opening and closing of the lid. The device includes a fixed plate, which is connected to the container, a spring, which generates a force on the lid, the magnitude of which varies according to the relative position of the lid, and a common rotary shaft that hinges the lid to the fixed plate. The lid receives force of the spring at a point that is remote from the common rotary shaft such that the force exerted by the spring compensates for the weight of the lid.

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 present application provides a cover assembly having a frame and a cover removably connected to the frame. The cover is sealed to the frame by a sealing device, and the cover is removably connected to the frame by fasteners without interfering with the seal to prevent leakage through the area around the fasteners. The frame and cover each also have a plurality of alignment indicators that are aligned with one another to assist an operator in securing the cover to the frame.

The present application provides a cover assembly having a frame and a cover removably connected to the frame. The cover is sealed to the frame by a sealing device, and the cover is removably connected to the frame by fasteners without interfering with the seal to prevent leakage through the area around the fasteners. The frame and cover each also have a plurality of alignment indicators that are aligned with one another to assist an operator in securing the cover to the frame.

A bulk fluid storage container includes a frame assembly having a lower rectangular frame, first and second wheel assemblies extending from opposite ends of the lower rectangular frame, and an upper rectangular frame member arranged in spaced relation to the lower rectangular frame member by a plurality of vertically extending posts. The bulk fluid storage container also includes a fluid storage vessel having first and second end walls held in spaced relation by first and second side walls, a top wall and a bottom wall, which defines a fluid storage volume. A baffle assembly having a plurality of baffle plates is disposed in a space relationship in the fluid storage volume. The frame assembly provides an exoskeletal structure which surrounds the fluid storage vessel and is configured to support a second bulk fluid storage container in a vertically stacked relationship.

A bulk fluid storage container includes a frame assembly having a lower rectangular frame, first and second wheel assemblies extending from opposite ends of the lower rectangular frame, and an upper rectangular frame member arranged in spaced relation to the lower rectangular frame member by a plurality of vertically extending posts. The bulk fluid storage container also includes a fluid storage vessel having first and second end walls held in spaced relation by first and second side walls, a top wall and a bottom wall, which defines a fluid storage volume. A baffle assembly having a plurality of baffle plates is disposed in a space relationship in the fluid storage volume. The frame assembly provides an exoskeletal structure which surrounds the fluid storage vessel and is configured to support a second bulk fluid storage container in a vertically stacked relationship.

An insulating disc can be easily installed and removed from inside a riser of a septic tank. The insulating disc is seated atop an opening of the tank lid and seals around the riser inner surface. The disc can include a core formed of R-10 extruded polystyrene sandwiched between two layers of high-density polyethylene. A flexible gasket can extend outward from the disc to seal against the inner surface of the riser. Retention tabs can also be provided to center and hold the disc in place. The disc can be divided into two semicircular halves that are hinged together. A hook, eyebolt and/or rope can be used to aid in removing the disc from the riser.