Containment berms (40) for the collection of hazardous materials are provided which include a floor (42) with an upstanding, continuous, foldable sidewall (44) to define and internal zone (46) for receiving and holding hazardous materials. The sidewall (44) may be supported by means of external support structure (48) and/or internal support structure (50). The support structures (48, 50) each include a plurality of support leg assemblies (52, 52a) which are secured to sidewall (44) and are pivotal about respective upright axes (66, 66a, 150) and are pivotal from retracted positions close to the sidewall (44) to deployed positions extending from the sidewall (44) and substantially perpendicular thereto.

A fluid draining system, for serving as an aid in emptying waste oil or other fluid from a fluid container to a fluid collection container, includes a main body, which may be made of injection molded plastic and may be at least partially transparent. The main body may have an opening for entrance of fluid from the fluid container, and a lower downward sloping chute for the exiting of the fluid towards the fluid collection container. A sleeve with one or more elastic seals may be provided at the main body to fluid-tightly yet operatively accommodate a socket extension or other tool for operating a drain plug of the fluid container. The fluid draining system may provide a unique hands free, confined fluid flow channel through which fluid will flow while draining from the fluid container, such as from an engine oil pan, crankcase, or transmission sump.

A drip pan apparatus for use in a helicopter includes a drip pan and a frame having a plurality of frame sides and a plurality of frame corners that define an inwardly-facing peripheral surface. A first frame angle is formed between a first inwardly-facing surface and a second inwardly-facing surface. The first frame angle is an acute angle. The drip pan has an outwardly-facing peripheral surface. The outwardly-facing peripheral surface defines a plurality of sides, including a first side and a second side, to cooperate with the inwardly-facing peripheral surface of the frame. A first angle is formed between the first side and the second side. The first angle is an acute angle. A method of installing a drip pan includes modifying at least a portion of a skirt on the helicopter and then securing the frame to one or both of the modified skirt and the helicopter structure.

A liquid containment device and method for containing leakage from a liquid reservoir. The liquid containment device comprises a base and a peripheral wall that comprises flexible resilient folds that allow a portion of the peripheral wall to be flattened against the floor to slide the liquid containment device under the liquid reservoir. The peripheral wall is resilient and returns readily to a position where it extends upwardly from the base when released. The liquid containment device can be installed by lifting slightly a reservoir, flattening a portion of the peripheral wall, sliding it under the reservoir until the flattened portion protrudes past the far edge of the reservoir whereupon it resiliently regains its shape forming a receptacle under the reservoir. Abstract not to be interpreted as limiting.

A fluid containment apparatus with a floor and a side wall is provided. A wall support is included that supports the side wall and can be moved between an initial supporting position and a collapsed position. The side wall is movable from an initial containment position to a collapsed state to allow access for vehicles or other objects to the floor. The wall support and side wall are subsequently movable back to their initial positions. In some arrangements, the wall support is movable back to the initial supporting position from the collapsed position but is not movable beyond the initial supporting position. Additionally or alternatively, in other embodiments the wall support remains in the collapsed position until a returning force is applied to move the wall support back.

A customizable hazardous material containment system including a plurality of rectangular fluid-capturing liners which are secured together via a plurality of overlapping side flanges which extend around the perimeter of the liners, the side-flange liner connection allowing for non-linear implementations of a hazardous material containment system. A drain port can be incorporated into the liner. The system can also be used as a secondary or tertiary hazardous material containment system.

A water pump drain plug has a first end which is adapted for engagement to a water pump drain opening which communicates with the pressurized fluid within the water pump. The drain plug has an axial passage communicating therethrough capable of draining fluid from the water pump. The axial passage is plugged initially by a sealing member engaged therein which will release upon communication of fluid pressure against it at a predetermined release pressure.

An aircraft provided with an engine compartment, the aircraft comprising an engine at least partially housed in the engine compartment, the engine comprising an exhaust nozzle for at least discharging gases, the aircraft comprising an exhaust duct arranged around the exhaust nozzle, the exhaust duct having an open end opening into the engine compartment. The aircraft comprises a drainage device comprising a guide cooperating with the exhaust duct for collecting liquid flowing along the exhaust duct and exiting the exhaust duct through the end.