This invention relates to a transportable modular container system for fluid freight. The transportable modular container system comprises a container module including a reservoir configured to hold a fluid; an adjustable support for the container module, removably securable to a load area of a freight carrying transport and reciprocatingly adjustable between proximate and distal positions, the container module being located relatively closer to the load area in the proximate position than in the distal position, and wherein a zone for secondary freight is defined between the container module and the load area when the adjustable support is in the distal position and removably secured to the load area of the freight carrying transport; and a removable fluid flow control module for controlling fluid flow of the fluid between an external reservoir and the container module reservoir and releasably connectable to the container module.

A multipurpose relocatable structure includes a floor system, a framework secured to the floor system, and walls coupled to the framework. The walls include a number of panels that are secured along adjacent vertical edges. The multipurpose relocatable structure may include a preconfigured interior, one or more doors having an emergency escape hatch, a protected electrical connector, an environmental control system that is configurable between operational and transport configurations, and lifting corners having securement apertures.

A multipurpose relocatable structure includes a floor system, a framework secured to the floor system, and walls coupled to the framework. The walls include a number of panels that are secured along adjacent vertical edges. The multipurpose relocatable structure may include a preconfigured interior, one or more doors having an emergency escape hatch, a protected electrical connector, an environmental control system that is configurable between operational and transport configurations, and lifting corners having securement apertures.

A self-contained heated portable vacuum slurry box which is constructed to hold both a positive pressure and a vacuum pressure. 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 slurry box meets space restriction requirements while functioning within the environmental conditions of winter and summer seasons.

A multipurpose relocatable structure according to various embodiments comprises: (1) a floor system; (2) a framework secured adjacent the floor system, the framework comprising: (a) a plurality of corner posts, (b) a pair of upper end posts, and (c) a pair of upper side posts; (3) a ceiling pan secured adjacent the framework; (4) a plurality of walls secured adjacent the framework; and (5) a door comprising an access hole and a hatch disposed adjacent the access hole to selectively prevent passage of a person through the access hole.

A multipurpose relocatable structure according to various embodiments comprises: (1) a floor system; (2) a framework secured adjacent the floor system, the framework comprising: (a) a plurality of corner posts, (b) a pair of upper end posts, and (c) a pair of upper side posts; (3) a ceiling pan secured adjacent the framework; (4) a plurality of walls secured adjacent the framework; and (5) a door comprising an access hole and a hatch disposed adjacent the access hole to selectively prevent passage of a person through the access hole.

A plastic article useful as a riser assembly for a septic tank or as part of another structure is comprised of a multiplicity of identical shape conical wall plastic risers. The risers are attached to each other at joints by tabs which engage rim segments; each end of the riser has alternating tabs and rim segments. A riser assembly wall undulates in the lengthwise direction. The risers nest within each other for shipment or storage.

This disclosure includes a manhole cover locking device, system, and kit, each configured for locking a manhole cover in a closed position overtop an access opening of a container, the access opening being arranged at one end of a collar extending outwardly from the container, each comprising: a body; a mechanism for connecting the body to a pre-existing portion of the manhole collar or the container; and, a mechanism for securing the body to the manhole cover to prevent the opening of the manhole cover using a pre-existing portion of the manhole cover. Each mechanism may be tamper resistant. The disclosure also includes methods of installing and using the device, system, and kit.

This disclosure includes a manhole cover locking device, system, and kit, each configured for locking a manhole cover in a closed position overtop an access opening of a container, the access opening being arranged at one end of a collar extending outwardly from the container, each comprising: a body; a mechanism for connecting the body to a pre-existing portion of the manhole collar or the container; and, a mechanism for securing the body to the manhole cover to prevent the opening of the manhole cover using a pre-existing portion of the manhole cover. Each mechanism may be tamper resistant. The disclosure also includes methods of installing and using the device, system, and kit.

A storage tank includes a floor, a roof, a sidewall extending between the floor and the roof, an access hatch provided on the roof and having a base, a lid pivotably coupled to the base, and a latch configured to secure the lid to the base in a closed position, and a system for remotely opening and closing the access hatch. The system includes an elongate arm having a proximal end operatively coupled to the lid, a pull cable attached to a distal end of the elongate arm and extending toward a ground adjacent the storage tank, and a latching cable attached to the latch and extending toward the ground adjacent the storage tank, wherein pulling on the latching cable when the lid is in the closed position actuates the latch to secure the lid to the base in the closed position.