Abstract: A portable liquid storage tank includes two elongate side walls, two end walls, a floor, and a roof, which are secured together to create a liquid-tight enclosure. The side walls are each preferably formed from a unitary piece of sheet material which is bent into three substantially planar sections which are angled at obtuse angles relative to adjacent sections. The tank thereby has a substantially octagonal shape. The floor is preferably sloped in a shallow V downward away from the side walls to assist drainage toward a drain. Each sidewall preferably includes at least one wedge-shaped brace located along the length of the sidewall and contoured to fit substantially flushly against the three planar sections of the sidewall. A plurality of support beams are secured transversely across the top of the side walls to provide additional structural stability for the roof. Several relatively large entryways are also provided in the tank and doors are provided thereto.

Abstract: The dumpster dual locking assembly includes a housing having two side walls each having an opening. Extending through the openings is a rotatable sleeve which has at one end a flange with a hole for receiving the barrel of a padlock. A rotation bar, which also has at one end a flange with a hole for receiving the barrel of a padlock, extends through and is rotatable relative to the sleeve. A locking bar for securing the hinged lid of a dumpster is coupled to the rotation bar. Both the sleeve and the rotation bar can be manually locked together by placing a lock through their flanges. When the dumpster is upright, a gravitational lock prevents the sleeve from rotating in the housing. The gravitational lock includes a support fixed to the sleeve, a pendulum supported at one end by and rotatable relative to the support, and a latch. The latch locks into a catch mounted on the interior surface of the housing when the dumpster is upright.

Abstract: An improved vehicle is described which is adapted both for the handling of refuse containers and for general utility purposes. The vehicle has a chassis, an elongated lifting frame supported by the chassis, and means for elevating a rearward segment of the frame with respect to a rear segment of the chassis. Refuse container engaging arms are supported near a rear segment of the lifting frame and a utility vehicle body is mounted on the lifting frame. The vertical position of the container engaging arms is varied in accordance with movement of the lifting frame.