A hydrocarbon fluid storage structure has a storage vessel containing hydrocarbon fluids therein and a containment vessel fully surrounding the storage vessel so as to provide secondary containment to the storage vessel. A heater is surrounded by heat exchanger fluid within a heat exchanger vessel within the storage vessel. The exterior of the containment vessel is insulated. The heat exchanger fluid is passively circulated within a closed loop path defined by the heat exchanger vessel. Connecting valves providing external access to the contents of the storage vessel are received within a valve housing in heat exchanging relation with a containment space between the containment vessel and the storage vessel.

A collapsible storage silo having an expanded configuration includes: (a) a shell for circumscribing storage space and comprising a plurality of concentrically nested tubular members that are collapsible; (b) a lift system operable to slidably expand the plurality of concentrically nested tubular members to place the silo in its expanded configuration; and (c) a mast operable to support the lift system. The mast is pivotable between horizontal and vertical positions relative to a frame. A winch attaches to the mast and a cable extends between the winch and an outermost tubular member to expand the silo such that inwardly and outwardly projecting lips of nested members engage each other and a conical hopper engages an innermost tubular member. A flexible inner liner attaches between an outermost tubular member and the hopper. A collapsible roof has a flexible roof membrane and a plurality of radially extending foldable rib members.

A mobile conductor lift comprised of multiple lightweight subassemblies that may be rapidly assembled manually or using handheld tools by a small crew of workers and that is capable of being quickly and easily placed into multiple potential configurations and in either horizontal or vertical orientations for lifting energized or deenergized conductors away from power poles in order to provide room for work to be performed by workers on such power poles or on other equipment connected to such power poles.

A mobile conductor lift comprised of multiple lightweight subassemblies that may be rapidly assembled manually or using handheld tools by a small crew of workers and that is capable of being quickly and easily placed into multiple potential configurations and in either horizontal or vertical orientations for lifting energized or deenergized conductors away from power poles in order to provide room for work to be performed by workers on such power poles or on other equipment connected to such power poles.

A mobile conductor lift comprised of multiple lightweight subassemblies that may be rapidly assembled manually or using handheld tools by a small crew of workers and that is capable of being quickly and easily placed into multiple potential configurations and in either horizontal or vertical orientations for lifting energized or deenergized conductors away from power poles in order to provide room for work to be performed by workers on such power poles or on other equipment connected to such power poles.

A mobile conductor lift comprised of multiple lightweight subassemblies that may be rapidly assembled manually or using handheld tools by a small crew of workers and that is capable of being quickly and easily placed into multiple potential configurations and in either horizontal or vertical orientations for lifting energized or deenergized conductors away from power poles in order to provide room for work to be performed by workers on such power poles or on other equipment connected to such power poles.

A bulk fluid storage container has a top wall structure and a bottom wall structure held in spaced relation by a side wall structure. An internal baffle assembly is disposed in the fluid storage volume between the side wall structure for reducing fluid sloshing. A fill port formed in the top wall structure has a fill flange for coupling with a source of the fluid. A vent port formed in the top wall structure has a pressure vacuum value. A drain port formed in the side wall structure in a lower region adjacent the gutter region has a drain valve assembly is coupled to the drain port. A frame assembly includes an upper rectangular frame member and a lower rectangular frame member arranged in spaced relation by a plurality of post; wherein the frame assembly surrounds and supports the fluid storage vessel.

A tool for removing a runner from an agricultural bin having a lever arm and a plurality of crossbars. The lever arm may be directly, or indirectly, engaged with a rotatable crossbar which may have a plurality of protrusions for engaging corresponding tabs of a runner. To use the tool, a user may align the protrusions of the rotatable crossbar with the corresponding tabs of a runner engaged within a leg of an agricultural bin, then the user may press down on the lever arm, causing the crossbar to rotate and engage the tabs. As the user continues to press down on the lever arm, the tabs eventually disengage from corresponding openings in the leg of the agricultural bin, allowing the user to remove the runner from the bin.

A tool for removing a runner from an agricultural bin having a lever arm and a plurality of crossbars. The lever arm may be directly, or indirectly, engaged with a rotatable crossbar which may have a plurality of protrusions for engaging corresponding tabs of a runner. To use the tool, a user may align the protrusions of the rotatable crossbar with the corresponding tabs of a runner engaged within a leg of an agricultural bin, then the user may press down on the lever arm, causing the crossbar to rotate and engage the tabs. As the user continues to press down on the lever arm, the tabs eventually disengage from corresponding openings in the leg of the agricultural bin, allowing the user to remove the runner from the bin.

A barrel is capable of vacuum loading and unloading, gravity unloading and loading, and pneumatic unloading. A roll-off skid is coupled to the barrel.