A fuel-tank fitting includes a cylinder-shaped fitting body including a connecting end to be connected with a pipe and a free end to be disposed freely inside a fuel tank, a flange disposed on an outer peripheral surface of the fitting body, and fastened to an opening periphery of an installation opening opened through the fuel tank, and a check valve disposed in the fitting body, openable only in a direction heading from the connecting end of the fitting body to the free end thereof, and closab...

An assembly is provided for internal placement of a component within a vehicle fuel tank. The assembly generally includes a two housing elements biased apart to retain the component within the fuel tank. The component may be non-destructively and selectively attached to the tank. Additional features prevent unwanted movement of the component relative to the fuel tank.

On failure, a burst rotor of a wing-mounted engine (13, 23) can penetrate fuel tank walls in the wing of a conventional aircraft. There exists a zone that is at risk of such damage. Thus, the layout of fuel tanks (3, 11C, 21C) in the wing of an aircraft in accordance with embodiments includes port and starboard inner fuel tanks (11C, 21C) that are positioned adjacent to a central fuel tank (3) in the central wing section, but outside of the at-risk zone. Each of the port and starboard inner fuel...

A method of servicing a wellbore comprising transporting at least two portable tanks to a well site to be serviced, and hydraulically injecting biocide into a first of the two tanks, wherein a second of the two tanks serves as a fluid source for conveying the biocide into the first tank.

An air transfer valve is disclosed comprising a housing (8) having an inlet (21) and an outlet (22), the outlet being controlled by a first non-return, valve (28) which is biased to its closed position and the outlet being controlled by a second valve (30) which is normally in its open position, the first valve being caused to open by an increase in air pressure within the valve but closing in response to reduced pressure. The valve is intended to be fitted into a fill pipe (1) of a fuel storage...

A particulate removal system has for its purpose to remove settled material from vessels and tanks such as those common to the petroleum industry. system comprises means of suspending settled particulate material and evacuating the material in such a manner so as not to disturb overlying liquid layers.

A device is provided which provides an extension of the water media above the surface of a fish aquarium so that fish in the aquarium can swim above the surface and provide an increase in entertainment because the fish appears in more detail and in a novel environment. The swimway is suspended by means of a mount which attaches to rods which bridge the top of the aquarium or in another embodiment is a floating mount which holds the swimway above the surface of the aquarium. Filling and mounting ...

A magnetic multi-layer insulation system for a cryogenic storage tank. The system includes multiple layers of insulation comprising a carrier support structure disposed between a first major surface of a magnetic material defining a north pole facing away from the carrier support structure, and a second and opposite major surface of a magnetic material defining a south pole facing away from the carrier support structure. A reflective surface, or metal foil, is disposed adjacent the magnetic pole...

The present invention is directed to a tickler impeller and agitation system for use in stirred slurry reactors and storage tanks. The tickler impeller when mounted on a shaft is effective for providing an inward and downward swirl in a slurry medium which directs solids suspended in the slurry towards the bottom of the tank and towards the shaft on which the impeller is mounted. Directing solids suspended in a slurry downwards and towards the center of the tank rather than pushing those solids ...

A safety device prevents access to the gas valve of a propane tank. The device includes a cup which fits over the valve, and a locking device for preventing the cup from being lifted from the valve. In some embodiments, the device includes a handle which allows the tank to be carried easily while the safety device is installed. In at least one embodiment, there is no handle. The device prevents children, and other unauthorized persons, from operating the valve, and thus prevents the accidental r...