Abstract: An insulated tubing is disclosed having a liner, a pipe surrounding the liner defining an annulus between the pipe and the liner, a plurality of sets of spacers, and an insulating material located between the liner and pipe, substantially filling the annulus. The spacers within a set of spacers are spaced apart from each other around the circumference of the liner and each set of spacers is spaced apart from each other set along the length of the liner. A method for producing the insulated tubing is also disclosed.

Abstract: In a super-insulation support system disposed in an annular space between concentric inner and outer corrugated tubes, a number of axially spaced rings is provided, which are interconnected by axially extending rods mounted in circumferentially spaced relationship alternately to the inside and the outside of the axially spaced rings thereby forming a cylindrical frame structure, which is disposed adjacent the inner corrugated tube and super-insulation is disposed on the cylindrical frame structure and supported thereby at a distance from the corrugated inner tube.

Abstract: A glass lined container such as a vessel or conduit for liquid or gaseous material is disclosed consisting of a strong outer shell and an inner glass liner. The glass liner is spaced uniformly from the outer shell and a molten material which will expand when solidified is poured into the space between the outer shell and glass liner and solidified to place the glass liner under high compression.

Abstract: A conduit assembly for a partition for receiving wires, hoses, or cables. The conduit assembly includes passages and foaming material, which expands on the outer surface of the conduit assembly. The conduit assembly is arranged in a through hole, which is formed in the partition. The foaming material expands when heated, thus fixing the conduit assembly in the partition. The conduit assembly further includes spare passages. Detachable plugs close the spare passages. When adding more wires, hoses, or cables to the conduit assembly, the plugs are removed.

Abstract: A cable-guide trough has a set of like U-shaped cross wires aligned with one another and lying in respective generally parallel and longitudinally spaced planes so as to form a trough with a horizontal floor and two upright sides. A set of generally parallel longitudinal wires is joined to the cross wires at the floor and sides. One of the sets is formed at the floor in upper and lower layers vertically flanking the other of the sets at the floor. The wires are all of identical cross-sectional size and shape. Both sets of wires are formed as two layers in the trough floor to produce a four-layer floor. Each wire of the lower layer lies directly underneath a respective one of the wires of the upper layer. The one set can be the longitudinal wires or the cross wires in a three-layer system. Furthermore the one set can be formed in the trough sides as inner and outer layers horizontally flanking the other of the sets at the trough sides.

Abstract: In a super-insulation support system disposed in an annular space between concentric inner and outer corrugated tubes, a number of axially spaced rings is provided, which are interconnected by axially extending rods mounted in circumferentially spaced relationship alternately to the inside and the outside of the axially spaced rings thereby forming a cylindrical frame structure, which is disposed adjacent the inner corrugated tube and super-insulation is disposed on the cylindrical frame structure and supported thereby at a distance from the corrugated inner tube.

Abstract: Two embodiments of insulated pipework system are described. The first comprises an outer sleeve, an inner flow pipe and insulating material within the space therebetween and is characterised by the use of a longitudinally compressed elastomeric member in the space between the inner and outer pipes as the primary means for transferring longitudinal forces between the inner and outer pipes. The second comprises an outer sleeve pipe, an inner flow pipe, an insulating material within the space therebetween, other than hollow alumina-silicate microspheres, wherein a longitudinally compressed elastomeric member is provided at intervals in the space between the inner and outer pipes. Compression of the elastomeric member is preferably by way of rigid plates on either side thereof which compress an the elastomeric member. For example, bolts can be passed through bores in the plates and elastomeric member and tightened thereby to compress the said member.

Abstract: A pipe leadthrough which can be fitted in a simple and functionally reliable manner and which ensures complete sealing against penetrating moisture on a permanent basis is described. This is achieved by the fact that the pipe leadthrough is formed of a pipe sleeve that has a hollow-cylindrical portion and an adjoining plate-shaped portion. The hollow-cylindrical portion has an internal diameter which is identical to or slightly greater than the external diameter of a pipe and on the hollow-cylindrical portion there is at least one hollow body with a destructible covering, which body is filled with a sealant.

Abstract: A new segmented choke is provided. Designed to reduce thermal stresses created when the fluid temperature fluctuate, this invention is constructed of segmented ceramic members fit within a relatively thin-walled retainer, shrunk fit thereto, thereby allowing the retainer to be more compliant. Shorter, multiple segments used in this invention are also easier to manufacture, can be produced with tighter tolerances, provide easier access thereby reducing maintenance costs and allow for the inclusion of sensors in the individual ceramic segments. This invention also provides improvements in size, manufacturing cost, ease of use and operating efficiency over prior choke devices.

Abstract: A centralizer (101) comprises two annular bands (102, 103) which are spaced apart by a plurality of hollow members (104, 105, 106) extending therebetween. The hollow members (104, 105, 106) overlie openings (110-115; 116-121) in the annular bands (102, 103) respectively. In use, fluid can enter and leave the hollow member via the openings. This flow helps maintain a film of fluid between the annular bands (102, 103) and the tubular on which the centralizer is mounted and thus facilitates rotation of the tubular with respect to the centralizer.

Abstract: A high-pressure fuel injection pipe for a diesel engine includes a fuel pipe main body with opposed first and second ends. First and second fastening nuts are mounted over the first and second ends. A first unitary outer pipe is mounted over a portion of the fuel pipe main body and is mounted to the first fastening nut. A second unitary outer pipe is mounted over a portion of the fuel pipe main body and has an end mounted to the second fastening nut. The end of the second outer pipe is spaced from the second fastening nut is expanded circumferentially and telescoped over a portion of the first outer pipe. A sealing ring is sealingly engaged between the first and second outer pipes.

Abstract: An apparatus comprises an elongate pipe (1) for use in the transfer of fluids susceptible to form deposits on cooling such as wax deposits in oil, and a container (12) comprising a reusable heat source comprising a supercooled solution, e.g., of aqueous sodium acetate. The container (12) is in heat conducting contact with a surface of the (1), preferably on at least one surface of the container. The deposit may be removed from inside the pipe (1) by locating in heat conducting relation to the pipe a reusable heat source comprising a supercooled solution, and activating crystallization in the solution liberating heat which causes at least some of the deposit to melt and/or dissolve.

Abstract: In a device for placing a structural element in a cable installation conduit in order to sub-divide it, the structural element has a width close to the size of the internal perimeter of the conduit and comprises a plate surmounted by ribs. The device comprises a hot air inlet designed to soften the plate of the structural element; an external cylinder whose diameter is identical to that of the conduit, the cylinder comprising a shaping cone at one end in order to enable the softened structural element in order to gradually take a cylindrical shape; and an internal core fixedly held at a position located in the shaping cone of the external cylinder and positioned inside the softened structural element in order to give it a constant internal diameter when it is being shaped.

Abstract: A readily replaceable heat exchange cooling jacket for applying fluid to a system conduit pipe. The cooling jacket comprises at least two members, separable into upper and lower portions. A chamber is formed between the conduit pipe and cooling jacket once the members are positioned about the pipe. The upper portion includes a fluid spray means positioned above the pipe and the bottom portion includes a fluid removal means. The heat exchange cooling jacket is adaptable with a drain tank, a heat exchanger, a pump and other standard equipment to provide a system for removing heat from a pipe.

Abstract: A pipeline comprises flow lines in which petroleum products flow and a protective carrier pipe around the flow lines. It further comprises a buoyancy module made of a thermally insulative material that is mechanically resistant to the hydrostatic pressure at the underwater site at which the pipeline is installed, the module providing the buoyancy required for installing the pipeline, in an economical manner.

Abstract: A drainage pipe for use in a basement waterproofing system is disclosed. The drainage pipe includes a plurality of openings located along its lower sidewalls. The drainage pipe includes a cleaning tube affixed to an interior surface of the drainage pipe. The tube has a plurality of spaced holes which allow fluid such as air or water to be forced out of the tube and clean debris from the drainage pipe. A garden hose, air hose or other fluid source can be attached to the tube.

Abstract: A process for producing pipes illustrated with foams comprises [a] providing, between an inner carrier pipe and an outer pipe arranged parallel thereto, a holder which is provided with at least one aperture and is mounted so that it can be moved axially and positions the carrier pipe in the outer pipe and [b] introducing into the vacant space between the two pipes, via the aperture (s) in the holder, a mixture for the preparation of foams, where [b1)] during the introduction of the mixture, the holder moves in an axial direction with respect to the outer pipe and the carrier pipe, then [c] after the mixture is charged, it is reacted to give the foam and [d)] the holder and, if desired, the outer pipe are removed.

Abstract: In a flexible line pipe comprising an inner corrugated metal tube (4), an outer corrugated metal tube (5) located at some distance from the inner tube (4) and a spacer as well as an insulation material between the inner and the outer metal tubes, whereby a pressure that is less than atmospheric pressure prevails in the ring-shaped gap (6) between the tubes, the spacer comprises two cords (7, 8) made of fiber-reinforced plastic applied to the inner tube (4) and wrapped in opposite directions. The insulation material (9) is a fleece material, and the pressure in the ring-shaped gap is between 10−3 and 10−1 mbar.

Abstract: A pipe hole covering and sealing trim for covering and sealing a hole in a wall through which a pipe extends. The pipe hole covering and sealing trim includes an annular piece has inner and outer perimeters, and front and back faces. The inner perimeter of the piece defining a center hole through the piece designed for extending a pipe therethrough. The piece has an inwardly extending resiliently deformable annular gasket along the inner perimeter of the piece designed for forming a seal between the pipe and the piece.

Abstract: An improved pipe support device for supporting an underground carrier pipe within an outer encasement of a horizontally bored hole beneath a highway or railroad bed is disclosed. The pipe support is an annular ring structure comprised of two semicircular clamping members, which each terminate in an outwardly extending flange. The opposite ends of each semicircular clamp section are joined by a hinge extending across the juncture thereof to provide pivoting movement from an open condition to a closed condition of the pipe support. The opposed flanges can be drawn together by attaching hardware to secure the pipe support to the underground carrier pipe. A plurality of radially extending leg members are provided around the circumference of the pipe support which terminate in elongated skid members each having tip portions being inwardly inclined toward the longitudinal axis of the pipe support to facilitate insertion of the carrier pipe within the casing of the horizontally bored hole.

Abstract: A hose band for reducing friction between a hose and a surface along which the hose is moved, having a flexible strip which has a series of contact ribs and flexible webs, and a fastening element holding the strip in position about the circumference of the hose. The flexible webs allow the strip to be wrapped around the circumference of the hose, and the ribs hold the hose above the surface along which the hose is moved. The fastening elements can be clips, bands or ties and may engage a circumferential channel on the strip.

Abstract: A line pipe with a double casing is especially used in transporting oil products. In a preferred embodiment, such a pipe is characterized in that, in a sealed annular space, located between an inner tube and an outer tube both coaxially arranged inside each other, there is included a self-sustaining plate made of open pore-microporous material, which is flexible enough to be externally wound around the inner tube. This plate is preferably less in thickness than said annular space such that a passageway is left free between the former and the outer tube whereby low pressure is maintained.

Abstract: A flexible protective sleeve (10; 20) for use in protecting an elongated member (W). The sleeve comprises a generally tubular wall (12; 22) for at least substantially surrounding the member. The sleeve also comprises resiliently-deformable projections (16; 24) projecting from an inner surface (18; 26) of the wall, the projections being arranged so that they cushion relative movement between the member and the wall.

Abstract: A corrugate tube with an inserted wiring harness is provided through an insertion hole of a protector body fitted in a fixing hole of a panel member, and fixed by a pawl provided at an end of a flexible arm projecting from a bottom of an arm accommodating cutout and shaped to be engageable with a trough between neighboring corrugates on the corrugate tube, permitting a selective one of small-diameter and large-diameter corrugate tubes to be fixed in the insertion hole, allowing the corrugate tube to be shifted in one direction.

Abstract: A nozzle device includes an axially extending tubular, cylindrical outside part; and a cap threaded on the outside part at the front or discharge end of the device and having a discharge bore composed of a rearward cylindrical portion having a first diameter; a frontal cylindrical portion having a second diameter less than the first diameter; and a frustoconical portion connecting the rearward and frontal cylindrical portions with one another. An axially extending inside part is coaxially received in the outside part and has an outer wall defining, with the inner wall of the outside part, an annular space for guiding gas therethrough. The annular space is axially adjoined by the discharge bore of the cap.

Abstract: The invention provides a weight to be used to submerge the hose used with swimming pool cleaners and which may be variably positioned at any position along the length of the hose, the weight having an annular metal member encased in plastics material with the plastics material also providing an inwardly directed radial flange to engage in the recesses between the corrugations of the hose.

Abstract: A subsea control cable includes an outer sheath and cables, conduits etc. arranged inside the sheath, and also at least one weight element. The weight element includes at least one strength member extending continuously along the entire length of the control cable, to which strength member there is attached a weight element or elements. The weight of the weight element in relation to the diameter of the control cable varies along the length of the control cable, e.g., from a predetermined minimum weight/diameter ratio, where the weight element consists only of the strength element, to a predetermined maximum weight/diameter ratio, where the cross-section of the control cable is filled to the maximum with the weight member.

Abstract: A secondary containment system for containing fuel leaks or leaks of other environmentally hazardous fluids includes a containment chamber and a detection system for detecting leaks. The containment system includes a fluid-carrying inner pipe and a containment pipe surrounding the inner pipe with an interstitial space being defined between the two pipes for containment of leaks. The interstitial space is pressurized with an inert fluid at a constant pressure greater than the pressure of the fluid flowing through the inner fluid-carrying pipe. Monitoring of the pressure of the inert fluid in the interstitial space triggers an alarm indicating that a leak has occurred. The location of the leak can be determined by the use of multiple pressure sensors. The containment pipe is reenforced to withstand pressures of at least 75 psi.

Abstract: A double containment glass fiber pipe section is formed by a single winding operation. The pipe section may be a pipe or a pipe fitting. A section of primary pipe is wound and wrapped by a plastic tape. A permeable material layer is then wrapped around the wrapped primary section. One or more plastic tape layers are then wrapped over the permeable material layer followed by a winding of the secondary pipe section. The assembly is then cured forming a double containment pipe section having a permeable annulus having a radial thickness of about 1 mm. The permeable annulus is defined by the permeable material between the primary and the secondary sections. The permeable material allows for the flow of fluids within the annulus. A pair of wires may be helically wound within the annular space and can be used to detect leakage from the primary pipe section flowing within the annulus by monitoring changes in the capacitance or the resistance between the wires.

Abstract: A piping system for conveying one or more product flow lines within an outer casing includes a layer of insulation on each of the product flow lines to prevent heat lost and an improved spacer arrangement forming an interface between the product flow lines and the casing to prevent damage to the casing and flow lines as well as reduce friction when the flow lines are pulled through the casing. The spacer includes a pair of halves that can be assembled together using a bolted connection, for example, with flanges provided on the halves. An integral polymeric body comprises each of the halves with projecting portions spaced circumferentially about each of the spacers, the projecting portions extending longitudinally and radially and having inclined surfaces that lessen stress during the pulling of product flow lines through the outer casing. Annular shoulders on the spacer mate with corresponding annular shoulders of the insulation layer to prevent heat loss at the interface.

Abstract: A spacer block (3) for an elongated substrate (1) on the inside of an elongated tube (2) comprises an internal ring (3a) which surrounds the elongated material, an external ring (3b) which is surrounded by the elongated tube (2), where the outside diameter of the internal ring (3a) is smaller than the inside diameter of the external ring (3b), and the internal and the external ring (3a, 3b) are interconnected by at least three spoke-type elements (3c) made of fiber material, which are uniformly spaced around the circumference.

Abstract: A cable and conduit assembly comprises a conduit, such as coiled tubing, with a cable, such as an electrical power cable, longitudinally disposed therein. A plurality of elastic fingers, such as relatively short lengths of spring steel, extend from the cable and frictionally engaging an interior surface of the conduit to transfer the weight of the cable to the conduit. The elastic fingers are angled to permit installation of the cable within the conduit in a first longitudinal direction and to prevent movement of the cable within the conduit in a second longitudinal direction.

Abstract: The present invention relates to protectors used to prevent piping or tubing from touching the surface of a bore hole, and in particular is related to discrete pipe coating protectors for in situ mounting on a product carrying pipe line or tubing to be received within an underground bore or within another pipe.

Abstract: A flexible pipe unit for an exhaust pipe line of an internal combustion engine comprises a metal bellows which has a front open end adapted to be connected to a first exhaust pipe and a rear open end adapted to be connected to a second exhaust pipe. A cylindrical outer case of metal is coaxially disposed about the metal bellows in a manner to define therebetween a cylindrical space. A first structure is arranged between a front end of the outer case and a front end of the bellows to achieve a mechanical connection therebetween. A second structure is arranged between a rear end of the outer case and a rear end of the bellows to achieve a mechanical connection therebetween. At least one of the first and second structures comprises a spring member by which the bellows and the outer case are resiliently connected.

Abstract: A fuel filler neck assembly is provided for use in a vehicle including a gas cap and housing assembly and a fuel tank. The vehicle has a plurality of predetermined final vehicle dimensions dictating a predetermined variety of final filler neck dimensions. The fuel filler neck assembly extends between the gas cap and housing assembly and the fuel tank for transferring fuel into the fuel tank. The filler neck assembly includes at least one axially elongated fill pipe having an axial length and including a plurality of raised, annular beads thereon. The beads are axially spaced along the fill pipe at predetermined distances each corresponding to respective predetermined final filler neck dimensions.

Abstract: Casing spacers for isolating carrier pipe mechanically, galvanically, and chemically from pipe casings. The spacers may be attached using fasteners to pipe joint restrainers or other ring structures which encircle carrier pipe. The spacers are more efficient to install in the field, provide robust mechanical structure and physical stability which does not degrade over time, provide additional protection to the pipe joints, and, because they may be attached to conventional structures instead of requiring an integral ring structure for encircling a pipe, alleviate the distribution and inventory problems encountered by conventional systems in which the casing spacer runners are attached to an integral ring structure which must conform to the carrier pipe size and the casing inner diameter.

Abstract: An improved hose for dispensing gasoline at service stations has removable fittings at each end; the removable fittings receive spreaders, each of which in turn receive a bayonet fitting at an end of a vapor recovery tube. An internal collar on an inner portion of the removable fitting and a keeper on the bayonet fitting cooperate to hold the spreader in place. The spreader retains the bayonet fitting on the vapor recovery tube in concentric position at each end of the hose. When the gasoline hose is replaced the vapor tube is removed and the removable fittings are unscrewed; the removable fittings and the vapor tube are then installed in a new section of outer hose and the assembly is re-installed on a gasoline pump.

Abstract: The present invention provides a damper comprising a compressible and resilient shaft and at least one constrained layer damping section attached to the exterior of the shaft via an adhesive. The damper can be compressed and inserted into a cavity or hollow in an article to be damped whereupon it can expand and provide vibration damping properties as well as optional acoustic absorbing properties. The present invention also provides the damped article and a method of damping the article.

Abstract: In a closure fitting assembly two identical fittings are adapted to be coupled together in a mirror-image relationship for closing a gap between containment components in a double-containment system. Each fitting defines a first axially-extending fusion surface located on one side of the fitting; a second axially-extending fusion surface located on an opposite side of the fitting relative to the first axially-extending fusion surface; a first circumferentially-extending fusion surface located on one end of the fitting; and a second circumferentially-extending fusion surface located on an opposite end of the fitting. Axially-extending fusion wires are interposed within the seams formed between opposing axially-extending fusion surfaces, and circumferentially-extending fusion wires are seated against each circumferentially-extending fusion surface for receiving electric current to heat the wires and in turn fuse opposing surfaces together.

Abstract: The malleable ragglestick 100 as shown in FIG. 1 comprises a plastic tube 110 of FIG. 2 having a circular axial cross-section as shown in FIG. 3 and having two (2) opposing sets of a multiplicity of cylindrically shaped depressions 130 as shown in FIG. 4, generally spaced apart.

Abstract: A double-containment piping assembly has two anchor supports, and at least one elbow fitting with an outer elbow section and an inner elbow section received within the inner elbow section. A first leg having a first inner pipe received within a first outer pipe is coupled between an anchor support and the elbow fitting. A second leg having a second inner pipe received within a second outer pipe is coupled between the other anchor support and the other side of the elbow fitting. First flexibility supports are mounted on either side of the elbow fitting, and permit axial and lateral movement of the inner pipe relative to the outer pipe in the areas of the elbow. First axial-guiding supports, which permit axial movement of the inner pipe relative to the outer pipe, but prevent lateral movement of the inner pipe, are each mounted a minimum distance from the elbow fitting between the inner and outer pipes.

Abstract: A device for storing and transporting tube scaffolding which is comprised of a U-shaped cradle and an attachable closure member. The cradle is constructed from square tubing and is made up of a horizontal member and two vertical members which extend upward from and at right angles to the horizontal members to form an approximate U-shape. The closure member is a rigid rectangular plate which extends across the top of the cradle member and attaches thereto with a bolt and pin assembly. Alternatively, the closure member may rotate and lock into position with a pair of bolts. When in use, a pair of the devices are used together by stacking the tube scaffolding in the cradles of the devices so that the cradle members are adjacent the opposite ends of the tube scaffolding. Once a twenty-five count of tube scaffolding has been placed in the cradles, the closure members are attached to the cradles to secure the tube scaffolding in place.

Abstract: An annular bulkhead for separating the inner and outer generally coaxial pipes of a double walled pipe structure wherein the bulkhead is in the form of an annular resilient member dimensioned to fit, in use, the annular space between the pipes, wherein the annular resilient member is supported on each axial side thereof by means of at least partial annular rigid rings divided into separate segments and secured together through the resilient annular member.

Abstract: The pipe spacer washer according to the invention includes a radially split annular element defined by three mutually hinged sector elements; and a snap-on fastening device defined by a tooth and a seat for insertion of the tooth, located at opposite substantially facing circumferential ends of the annular element, and for integrally connecting the circumferential ends to define an inner ring housing the pipe and connected in one piece to an outer supporting ring by a number of radial ribs. The washer is made entirely of a single material of a Shore A hardness of more than 80, in particular xantoprene.RTM.; the retaining tooth is in the form of an asymmetrical arrow, and has an inner axially through cavity elongated circumferentially; and the seat for receiving the retaining tooth is closed partially on both sides by two lateral braces offset circumferentially.

Abstract: A pipe cage (18) for protecting persons from a hot process pipe (12). The pipe cage includes first and second clips (20,22) separated by a predetermined distance and engaging the hot process pipe (12) and first and second sets of spacer bars (24,26) extending from a respective one of the first and second clips (20,22). A first ring (28) is connected to surround the first set of bars (24) and a second ring (30) is connected to surround the second set of spacer bars (26). A plurality of ribs (32) are connected between the first and second rings (28,30), wherein the plurality of ribs (32) are spaced from and extend parallel to the hot process pipe (12) preventing contact of the hot process pipe (12) by a person in an area surrounding the pipe while providing ambient air exposure to the hot process pipe (12).

Abstract: Forming a novel double containment polymeric piping assembly by interfitting slidably interfittable polymeric inner pipe components, including a first induction responsive layer therebetween, and slidably interfittable polymeric outer pipe components, preferably including a second induction responsive layer therebetween, to form an inner connection and an outer connection, while causing the inner connection to be axially offset from the outer connection, applying an electrical induction force around the periphery of the outer pipe components, axially aligned with the inner connection but not with said outer connection, and thereby fusing the inner pipe components and the first polymeric layer together, and moving the components relative to said electrical induction force, axially away from the inner connection, and axially aligned with the outer connection, applying an inductive force around the periphery of the outer pipe components, and thereby fusing the outer pipe components and the second polymeric layer

Abstract: In rehabilitating underground piping, a new piping is installed by inserting a large number of unit pipes into the existing underground piping. Each of the unit pipes has a prescribed length and is connected to an adjacent unit pipe along a longitudinal direction. The unit pipe is tapered, and the tapered pipes are inserted from one of two adjoining manholes with the smaller-diameter ends directed toward the other manhole. The smaller-diameter end of the next tapered pipe is inserted into the larger-diameter end of the preceding pipe. A seal is formed at the connection by wrapping a packing made of hydrophilic rubber around the smaller-diameter end. This operation is repeated until the leading tapered pipe reaches the other manhole.

Abstract: This invention relates to a modular, conduit end-frame comprising at least one peripheral modular element and at least one intermediate modular element, and the peripheral and intermediate modular elements themselves. The conduit end-frame has utility in orienting the ends of conduit in a work area. Each of the modular elements has flanges extending from its ends. During the installation process, the modular elements are secured in place during the pouring of concrete, by nails or screws connecting the flanges to a wooden frame. The flanges are at a sufficiently safe distance from openings in the end-frame through which electrical cable, and sometimes live electrical cable, will pass.

Abstract: A poke-through electrical connector includes an elongate, generally tubular housing member and at least one retaining clip for securing the connector in an interfloor passage. The retaining clip includes a transverse flexure portion and at least one anchor point dimensioned and angled from the flexure portion for substantially radially-directed engagement with the wall of the interfloor passage. Displacement of the anchor point results in a compressive load which causes a bending moment to develop in the transverse flexure portion. The flexure results in application of a reactive retaining force by the anchor point.

Abstract: A refuelling system is provided, the system comprising: a seal cylinder defining the outside surface of an axial vapor recovery volume within the seal cylinder having a first end and a second end; a first flexible conduit to supply fuel to within the seal cylinder through the first end; a movable seal piston within the seal cylinder connected to the first flexible conduit, the seal piston effective to isolate a vapor recovery volume within the seal cylinder from the atmosphere surrounding the flexible fuel conduit; a fuel insert tube connected to the seal piston and extending through at least a portion of the vapor recovery volume; a boot seal attached to the seal cylinder at the second end of the axial vapor recovery volume, the boot seal effective to seal with a fuel tank inlet nozzle; and a device to move the seal piston laterally through the seal cylinder and thereby extending the second flexible conduit through the second end of the axial vapor recovery volume and into a fuel tank inlet nozzle when the b