Abstract: Replaceable tank (RT) for installing in metallic storage tanks for fluids consists of a tank body and one or more orificial members. The RT conforms with inner walls of the storage tank and is made of flexible materials, such as rubber or PVC that are impermeable to the fluids stored. Orificial members having a tubular neck and conforming with the lumen of the orifices of the storage tank are typically made of the same material as the RT. Magnets, attached to, or embedded in, the walls of the RT are attracted to the walls of the metallic storage tank. A method for manufacturing, packaging and for in situ installing an RT is provided.

Abstract: A container (210) for holding granular/powdered material and formed by a top wall (212), a bottom wall (214), a front wall (216), a rear wall (218), a first side wall (220), and a second side wall (222). A removable lid (D) is interiorly mounted with a scoop (32) and is hinged to a collar (300) that includes a sealing gasket (330). The collar (300) mounts to the walls of the container (210). A sealing wall 240 of the lid (D) cooperates with the gasket (330) to prevent the contents from spilling. The container (210) incorporates sealing features, a geometry for container wall junctions (50) and a junction congruent scoop (32) enabling easy access to the contents, and a strength improving receptacle (280) with indentations (290) that interlock with flex clips (310) of a J-shaped collar (300), and which accommodate wide tolerance variations between the collar (300) and receptacle (280).

Abstract: A bulk, generally elastomeric and pliable, layered mat formed to permit selective trimming into size-chosen mat trims/tiles, each of which is structured to perform as a self-puncture(wound)-sealing, defined-liquid-reactive, anti-puncture-leakage coating element applicable bondedly to the outside surface of a selected wall in a container holding the defined-liquid. Also disclosed is a method for protecting against liquid leakage from a puncture wound in such a wall including: (a) preparing a generally elastomeric, pliable, layered coating mat of a self-puncture-healing, defined-liquid-reactive, anti-puncture-leakage material; (b) in relation to a selected container wall, selectively removing, by trimming, from the prepared mat one or more mat trims/tiles shaped for specific use on the outside surface of that wall; and (c) applying and surface-bonding the one or more trims/tiles to the outside surface of the selected wall.

Abstract: A lining system for a fluid containment vessel having an outer section with a floor surface and a vertical surface. The inner section is attached to the outer section so that interstitial space exists between the outer section and the inner section and a continuous negative pressure exists in the interstitial space. The floor surface is formed from a cost saving template. The vessel is divided into at least two independently sealed portions. The inner section includes a shell skirt that reaches a critical height within the vessel to reduce the effects of corrosion and to avoid stresses on the vertical surface. A flushing mechanism allows the area to be purged of any leaked material.

Abstract: A double walled container is provided by an inner container that is fitted within an outer container. End flaps are provided on the outer container for engaging the inner container and closing the gap between the inner container and the outer container. The method involves lifting the inner container out of the outer container, removing the grease from the inner container, and inserting the outer container back into the inner container.

Abstract: A spill containment assembly includes a support structure or grate, and a flexible containment bag disposed beneath, and secured to, the grate. Fluid filled containers are placed on the grate. The bag defines an available containment volume sufficient to retain a quantity of liquid stored within the containers supported by the grate.

Abstract: A double walled riser sump has an annular space between the two walls. The provision of the annular space provides for monitoring the integrity of the two walls of the sump. The two walls of the sump are preferably separated by a thin film or a distance fabric that allows the passage of fluids, and preferably liquids. The annular space may be in fluid communication with a reservoir holding a monitoring fluid and positioned near the top of the sump to be easily accessible. In some embodiments, a top of the riser sump is also double walled and the top annular space is in fluid communication with the annular space between the vertical walls. If a leak develops in either wall of the sump, a corresponding drop in the fluid level of the reservoir will occur.

Abstract: A container for shipping items in an aircraft includes a shipping compartment and an expandable chamber for receiving gas from the shipping compartment. At least one conduit connects the expandable chamber to the shipping department so as to permit the flow of gas therebetween. A method for shipping items in an aircraft is also disclosed.

Abstract: A large-volume container for holding liquid media is composed of two shell-like end parts each having a ring-shaped flat contact surface, and at least one sleeve-like middle part composed of two ring segments and provided with two ring-shaped flat contact surfaces and an opening for filling and emptying. The two end parts as well as the ring segments of the middle part are manufactured by blow molding with an inner layer and an outer layer, are provided with external stiffening ribs formed as chambers, and are connected in the areas of their contact surfaces by an inner and outer weld. The two end parts as well as the ring segments have in the areas of their contact surfaces a circumferential chamber, wherein the contact surfaces have at their circumferential boundary edges backwardly extending inclinations for forming welding grooves between the end parts and/or the ring segments.

Abstract: Structure, and a related method, for sealing, from the outside, a leaking puncture wound in the wall of a liquid container. This structure includes a patch body having a perimetered cavity selectively securable via a self-torque-limiting bolt to the outside of such a container in a manner whereby the cavity overlies and faces the wound, with the cavity's perimeter surrounding the wound, and a patch pellet contained and confined in the cavity and formed, at least in part, of a reaction substance which, with the patch body secured to the container, reacts to contact with liquid leaking from the container at least by imbibing such liquid and swelling to apply wound-sealing pressure, and more preferably by additionally reacting with leakage liquid to form a sticky coagulant mass for aiding in applying sealing pressure to the wound.

Abstract: A storage tank leak detection and prevention system that detects a breach or leak in the interstitial space of a double-walled fuel storage tank in a service station environment. The interstitial space is placed under a vacuum using a submersible turbine pump that is also used to pump fuel to the fuel dispensers in the service station and therefore a separate vacuum generating source is not required. A sensing unit and/or tank monitor monitors the vacuum level in the interstitial space over time. If a significant vacuum level change occurs in the interstitial space after the interstitial space is placed under a vacuum level, a catastrophic leak detection alarm is generated. If a minor vacuum level change occurs in the interstitial space after the interstitial space is placed under a vacuum, a precision leak detection alarm is generated. Functional tests also ensure that the leak detection system is functioning properly.

Abstract: Containers for collecting and discharging particulate lignocellulosic material are disclosed, including a cylindrical upper portion, a lower portion tapering towards a bottom elongated space, an exit pipe below the bottom, a pair of parallel screws mounted on parallel shafts in the elongated space in a common horizontal plane for feeding the particulate lignocellulosic material towards the exit pipe, a pair of distributors disposed on the parallel screws above the exit pipe comprising radial discs, and a pump below the exit pipe for transporting the particulate lignocellulosic material to a subsequent step.

Abstract: A leak detection and prevention system adapted to continuously monitor the spaces of a double wall hydrocarbon fuel handling system comprising storage tanks, product lines, vapor recovery lines, tank vent lines, etc. The system establishes and monitors a resident gas-pressure within the interstitial space to monitor the integrity of the primary and secondary containment. Change in resident gas-pressure in excess of a calibrated vacuum flow rate or the presence of liquid in any monitored space initiates an alarm. Once an alarm is signaled, the product delivery system is shut down and an audio-visual alarm is activated in close proximity to operating personnel. An onsite service call by qualified personnel is required to return the product handling system back into service. A qualified service technician connects to a communication port on the system control module to evaluate the cause of the failure. The system utilizes vacuum pressure to monitor for containment breaches.

Abstract: A rib suitable for use with a storage tank has a “Y” cross sectional shape including a trunk section and branches. Each of the branches includes a substantially flat upper surface for positioning adjacent to a tank wall. The branches together with the tank wall define an annular space which may be used as part of an annular space in a multiple wall tank. The rib preferably includes a high modulus material such as graphite or steel. The high modulus material may be present in the trunk, branches, or both.

Abstract: A containment enclosure system at least a portion of which is double-walled. An exemplary system of the invention provides enhanced leak protection by monitoring the space within the double-walled portion of the containment enclosure system. The system is capable of providing continuous monitoring of the enclosure, collar, penetrations, and/or joints for potential leaks. Containment enclosures of the invention may be used as, used with, or attached to tanks, piping, dispensers, or any other type of storage container including vessels, boxes, spheres or containers of any shape. These containment enclosures may be underground, partially underground, or aboveground. In addition, these containment enclosures may be completely enclosed or enclosed on the bottom and sides with an open or covered top.

Abstract: The invention relates to a storage container for water-endangering liquids that comprises a leakage detection and restraint system. The aim of the invention is to provide a container that allows for a short-notice alarm system and that minimizes the collection volume, that is to ensure that the water-endangering liquid spreads as little as possible, as well as to reduce construction and maintenance costs. To this end, the storage container is characterized by the following features: a gutter (4) surrounding the tank (13) that is directly contiguous with the outer wall (2) of the storage container and that collects leaked liquid, at least one gutter outlet (14), at least one liquid collection container (6), and at least one detection system (12) for the water-endangering liquids. The gutter outlet (14) is adapted to guide the liquid collected in the gutter (4) to the liquid collection container (6) that is provided with the detection system (12).

Abstract: A testable sump apparatus comprises a body wall including a first wall with a first wall portion and a second wall with a second wall portion. The first wall portion is spaced from the second wall portion to at least partially define a body wall interstitial space therebetween. The testable sump apparatus can optionally include at least one spacer located in the body wall interstitial space between the first wall portion and the second wall portion. The sump apparatus can also include an optional test port and an optional fitting mounted to the body wall adjacent the through hole. The fitting, if provided, can at least partially define a fitting interstitial space, wherein the fitting interstitial space may be in fluid communication with the body wall interstitial space.

Abstract: A toroidal rib suitable for use with a storage tank has a “Y” cross sectional shape including a trunk section and branches. Each of the branches includes a substantially flat upper surface for positioning adjacent to a tank wall. The branches together with the tank wall define an annular space which may be used as part of an annular space in a multiple wall tank. The rib preferably includes a high modulus material such as graphite or steel. The high modulus material may be present in the trunk, branches, or both.

Abstract: A double walled storage tank includes an outer wall, an inner wall, a plurality of ribs disposed between the inner and outer walls, and a plurality of annular spaces between the ribs. The annular space between each pair of ribs is connected to other annular spaces only at the top of the tank. When a leak occurs in either the outer or inner wall, the annular space corresponding to the leak will at least partially drain while the other annular spaces will remain full. Thus, the leak location can be determined by simply examining the annular spaces between pairs of ribs.

Abstract: A relatively lightweight generator base tank for storing flammable and combustible liquids comprising an inner primary tank encased by foam and fire resistant material which is further encased by an outer secondary tank. The system results in a storage tank that is less likely to leak hazardous substances to the environment and is protected from fire and physical damage.

Abstract: A method of making a double wall tank for storing liquids comprises providing an inner tank having substantially cylindrical sidewalls and end walls; wrapping an impervious sheet material around the cylindrical sidewalls; providing a spacer means on exterior surfaces of the end walls; covering the wrapped inner tank and spacer means with reinforced resinous material to form an outer tank; and providing access to inspect an interstitial space between the impervious sheet material and the inner tank.

Abstract: A triple-walled underground storage tank is provided with primary, secondary and tertiary walls. Between each two adjacent walls, an annular space is provided. The annular space is continuous throughout, and permits the flow of liquid therein. Monitors may be provided separately for each annulus, to detect the formation of leaks, or a lack of containment, in either wall defining the annular space. In one embodiment, the tertiary wall is a smooth cylinder formed about the circumferential ribs of the secondary wall. In the alternative embodiment, the rib-bearing wall is the tertiary wall, and the walls and annular materials of the tank are formed within a female mold. In either case, a tank prepared from integral ribs, with superior robustness and strength, is provided with triple containment.