Abstract: The invention relates to a device reinforcing circumferential welds 8 which join two contiguous pipes 6 and 7 in order to increase the fatigue life of said welds by reducing mechanical stresses in them when being subjected to periodic bending.

Abstract: At one end of the hose body 55 formed by the thin cylindrical wall, and straight end portion 54 extending straightly and an annular groove 56 integrally mold-formed on an outer peripheral surface of the straight end portion 54 are provided. An connecting member 60 for connecting the one end of the hose body 55 with the mating member has a cylindrical portion 61 secured on an outer peripheral surface of the straight end portion 54 coaxially. When the straight end portion 54 onto which the cylindrical portion 61 is secured is inserted into the straight end portion 54, a first engaging element 60b extending radially outwardly from the cylindrical portion 61 engages with a second engaging element 77 protruded from the opened end portion 76 radially outwardly.

Abstract: A projectile receiver for receiving and stopping a high velocity projectile used in testing duct pipe which serves as a housing for fiber optic cables, as well as a method of using the projectile receiver, are disclosed. The receiver has a perforated housing that contains a rubber end stop therein adjacent a removable cap. The opposite end of the housing is stepped down to a diameter equal to that of a duct pipe being tested. The projectile receiver may be quickly and easily attached to and detached from a duct pipe to be tested using a clamping device, so that a single projectile receiver can be used to test a plurality of duct pipes in succession.

Abstract: An exemplary embodiment of the invention is a kit for installing an underground piping system. The kit includes a protective conduit having flexible piping contained therein and a plurality of sealing members. The installer positions the protective conduit and flexible piping as a single unit thereby facilitating installation.

Abstract: An exemplary embodiment of the invention is a kit for installing an underground piping system. The kit includes a protective conduit having flexible piping contained therein and a plurality of sealing members. The installer positions the protective conduit and flexible piping as a single unit thereby facilitating installation.

Abstract: An expansion tube joint of the present invention comprises a first cylindrical body, a second cylindrical body inserted along an axis of the first cylindrical body, a seal member mounted between the first and second cylindrical bodies closer to an insertion port of the first cylindrical body, a lock mechanism provided at a position deeper than the seal member for restricting a relative movement range along the axis of the first and second cylindrical bodies, and a coming-out preventing member for preventing the seal member from coming out from the insertion port of the first cylindrical body, wherein after a member constituting the lock mechanism is mounted, the seal member can be mounted.

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 system for identifying and positioning pipelines that accurately and unequivocally marks a section of pipeline and tubular goods located anywhere for subsequent identification. The pipeline positioning system comprises a permanent, passive, non-obtrusive, and systematic placement of marker coupons upon pipe diameters for uniquely identifying a pipeline or specific location therein. Identification and location codes incorporated into the markers may be readily detected by inspection methods known in the art. Codes may be applied to new tubes or pipelines during manufacturing, during pipeline laying operations, or during maintenance being rendered by the pipeline owner or operator.

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 joint assembly for a pressurized, multi-sectional exhaust manifold comprising a joint member, tubular in cross section having a first end and a second end and a throughbore extending therethrough, the outer circumference of the joint member being less than the inner circumference of adjoining exhaust manifold sections, there being formed on the joint member proximate the first end and the second end a plurality of circumferential grooves for receipt of a plurality of sealing rings, the joint member and sealing rings being frictionally secured within adjacent ends of exhaust manifold sections.

Abstract: This invention is related to ultra-light conduit for used air and a method for construction of such a conduit with sandwich sheet type of material such as “THERMO-FOIL™” permitting to avoid losses of heat and humid air. The method of construction of a used air rectangular conduit includes the following five (5) steps: 1) cutting of a sandwich sheet 2) sealing around the sandwich sheet 3) heat formation of lengthwise channels on the surface of sandwich sheet 4) assembling the sandwich sheet into a conduit of a predetermined length and 5) installing a lengthwise vertical reinforcement into the conduit and providing a male adaptor to a fore end of the conduit which could be adapted to an aft end of a joining conduit.

Abstract: An account has been given for corrosion-protection of metal constructions, e.g. in the form of a pipeline consisting of interconnected pipelines (10, 10a, 10b, 10c, 10d) and, possibly, incorporatable in a larger pipe system. Said metal construction is, for purpose of corrosion-protection, assigned one or more sacrificial anodes in the form of one or more bodies made of a metal or a metal alloy which is less noble than the metal to be corrosion-protected. In order to utilize the sacrificial anode(s) beyond its corrosion-protecting ability within said construction, said one or more sacrificial anode bodies are included in the metal construction as at least one functional part thereof, e.g. in the form of at least one pipe length (10).

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: A pipe section formed of a polymeric material which has a substantially constant thickness throughout, the terminal edge of the female connection having a reinforcement structure which rigidifies the end of the female connection and prevents deformation, the pipe section preferably having a flared end, and the reinforcement structure preferably being a semicircular channel formed at the end of the pipe section by a mandrel after initial extrusion of the pipe section; along with a method and apparatus for forming the pipe section, a pipe assembly including such pipe section, and a method of forming the pipe assembly.

Abstract: An assembly of an end-fitting (9) and a flexible pressure pipe which is of a non-bonded structure and comprises a number of layers including at least one layer having a number of helically wound flat metallic tensile armor wires with end parts which, in the assembled condition, are embedded in an anchor consisting of a casting material such as epoxy which is injected into a cavity formed in the end-fitting. The flat wire end parts have at least one twist turning generally around the centerline of the wire. Said twists lock the tensile armor wires firmly in the anchor and therefore provide a greater resistance to axial tensile loads acting on the assembly than has been known before. Furthermore the joint is a simple and cheap structure and can be made in situ.

Abstract: A rigid air duct is provided for conducting flowing air. The air duct includes a fiber glass board that is deformed to define a channel for conducting flowing air. A mat facing is adhered to an interior surface of the board and is made of a fabric including glass fibers. Uncured portions of a binder material in the fiber glass board are heated and cured to adhere the mat facing to the board.

Abstract: A corrosion-resistant and fire-resistant pipe system suitable for sprinkler systems and the like in the offshore industry and also on military and civilian seagoing vessels, and generally as sprinkler systems in official buildings and in industrial buildings. The pipe system is characterized in that the pipe system includes rigid and cold-formable pipe sections (10) that have one or more tubular rubber layers (11, 13, 15) and reinforcement layers (12, 14) that surround or embrace one or more of the tubular rubber layers (11, 13, 15). The reinforcement layers are comprised of wires or ribbons that have been wound, braided, knitted or formed in some other way so as to cross each other, wherein each of the wires or ribbons defines with the longitudinal axis of the pipe section a winding or spiraling angle that imparts the greatest possible strength to the reinforced, tubular rubber layers (11, 13, 15).

Abstract: A recoverable article includes an inner resilient tubular member that is held in a laterally exapanded configuration by engagement with outer holdout strips, wherein the outer surface of the inner member is provided with a plurality of channels extending therealong and the holdout strips occupies the channels so as to provide said holdout engagement, wherein the holdout strips is arranged to be removed intact without any substantial change in the molecular structural properties of the holdout strips; thereby to allow recovery of the inner tubular member towards its unexpanded configuration.

Abstract: This invention is related to ultra-light conduit for used air and a method for construction of such a conduit with sandwich sheet type of material such as “THERMO-FOIL™” permitting to avoid losses of heat and humid air. The method of construction of a used air rectangular conduit includes the following five (5) steps: 1) cutting of a sandwich sheet 2) sealing around the sandwich sheet 3) heat formation of lengthwise channels on the surface of sandwich sheet 4) assembling the sandwich sheet into a conduit of a predetermined length and 5) installing a lengthwise vertical reinforcement into the conduit and providing a male adaptor to a fore end of the conduit which could be adapted to an aft end of a joining conduit.

Abstract: Prefabricated insulated pipe sections are constructed of an inner pipe surrounded by a concentrically-positioned outer pipe. End portions of the inner and outer pipes are joined with bellow members so that an annular space is defined. A portion of the inner pipe is wrapped with layers of insulation material with inert insulating granules positioned between the layers. The annular space is partially evacuated to below atmospheric pressure. Multiple pipe sections may be joined by their inner pipes through brazing or other known methods. The joints and neighboring bellow members on abutting pipe sections are covered by clam shells that are sealed and filled with insulation.

Abstract: A lay-in wireway includes channel members connected in an end-to-end configuration to form an enclosed rectangular channel. Covers hingedly connect to a flange extending from one side of the wireway. Hinges are then formed with the cover member and act as a stop to hold the cover member at an open position. Channel members connect with a hook and slot arrangement which slide relative toward one another at an end connector portion. Hooks and slots provide self-alignment of connected channel members when slid into position.

Abstract: In order to create a cyclone separator with segmented immersion pipe for cement clinker manufacturing system with cyclone suspension type heat exchanger system, whereby the releasable immersion pipe segment fastening is dependable and is distinguished by a long service life, it is inventively proposed to secure the immersion pipe segments at their upper end with releasable screw bolts, whereby the screw bolts are arranged in spacer sleeves distributed around the immersion pipe circumference that respectively comprise at least one window-like opening at the outside for the access of ambient air as coolant for the immersion pipe segment fastening.

Abstract: A pipe section formed of a polymeric material which has a substantially constant thickness throughout, the terminal edge of the female connection having a reinforcement structure which rigidifies the end of the female connection and prevents deformation, the pipe section preferably having a flared end, and the reinforcement structure preferably being a semicircular channel formed at the end of the pipe section by a mandrel after initial extrusion of the pipe section; along with a method and apparatus for forming the pipe section, a pipe assembly including such pipe section, and a method of forming the pipe assembly.

Abstract: A recoverable article comprising an inner resilient tubular member that is held out in a laterally expanded configuration by engagement with outer holdout structure, wherein the outer surface of the inner member is provided with a plurality of cavities, and wherein the holdout structure occupies the cavities so as to provide the holdout engagement, wherein the holdout structure comprises at least one initiating portion that is structurally different from the remaining portion that engages at least one associated cavity, whereby release of the initiating portion from its cavity facilitates subsequent release of the remaining portion of the holdout structure.

Abstract: A plug-in connector, especially for hose connections and for use in motor vehicles, including a receptacle and a plug. The receptacle may be provided with an insertion opening for receiving the plug and a groove for retaining at least one locking spring which may be used to lock the receptacle and plug together. The locking spring may include at least one locking section and one unlocking section which can be actuated from the outside of the receptacle. The receptacle may also include an unlocking opening accessible from outside of the receptacle and which discharges into the groove so that the unlocking section of the unlocking spring may extends from the groove into the unlocking opening. The locking spring is retained in the groove in a manner that the locking section is moved outward in a substantially radial direction into the groove when a force is applied to the unlocking section, thus disengaging the locking section from the plug and allowing separation of the plug and the receptacle.

Abstract: A ventilation duct includes an envelope lined on the inside by insulation panels. The panels have a lining on the side of the flow channel of the duct and on at least one part of at least one of transverse edges of the duct. This lining extends over at least one part of each of both sides of the edge and is integrated with the panel. Z shaped sections may be used to hold adjacent panels.

Abstract: A method for permitting the joining together of two adjacent pipe lengths with adjacent ends curving with substantially the same sense, the method comprising rotating the end of one of the pipe lengths about its axis until it curves in substantially the opposite sense to the curve of the adjacent end of the other pipe length.

Abstract: An inventive air duct includes a blow molded tubular body of a first material having at least one annular open end, the open end terminating at a radially outwardly extending lip. A cuff of a second material is molded to the main body such that at least a portion of the lip is embedded within the cuff. Before molding the cuff, a portion of the main body adjacent the open end is pre-formed to remove any seams created during blow molding and to provide improved dimensional stability. Thus, leak pathways are minimized. The improved dimensional stability in combination with the use of an outwardly extending lip, a portion of which is embedded within the cuff, helps promote a strong seal between the cuff and the main body.

Abstract: A corrugated synthetic resin pipe comprises a pipe wall including sectionally rectangular wall portions and sectionally circular wall portions disposed alternately in a longitudinal direction of the pipe. Each of the sectionally circular wall portions has an annular projected portion disposed at a substantially center of the sectionally circular wall portion between adjacent sectionally rectangular wall portions in the longitudinal direction, to thereby prevent parallel layout or stack layout of pipes from being disturbed.

Abstract: The invention relates to a pipe arrangement with a corrugated pipe (10a, 10b) which has a slit (14) in axial direction, whereby, in accordance with the invention, at least one pipe section (22a, 22b) is provided with corrugations, which can be brought into engagement with the corrugated pipe over an axially extending portion, whereby the pipe section includes a longitudinal slit (24) and, thus, can be positioned onto or inserted into the corrugated pipe so that the slit (14) in the latter is covered. This provides a simple pipe arrangement which can be easily and economically produced and does not exert undue stress on the cables or conduits therein or branching off therefrom.

Abstract: A a quick acting closure has two flanges. One of the two flanges has a groove for a flexible seal and the other has spaced cogs. The goal is to provide a quick acting closure in such a form that it can be used for the connection/closure of boiler or pipeline elements which can either have a round or a non-round cross section. In accordance with the invention, the two flanges are therefore connected to each other by individual clamps which are arranged at the circumference of the flanges and the number of which is equal to the number and the spacing of the cogs in the flange whereby the clamps are connected to each other two sheet rings, i.e. one lower and one upper sheet ring.

Abstract: A method and apparatus for manufacturing a hollow plastic product is provided. In accordance with one aspect, into a mold half having a tubular groove portion and a projecting groove portion which projects outwardly from the tubular groove section is supplied a parison into the tubular groove portion and a clump of molding material into the projecting groove portion, and when blow molding is carried out by introducing a pressurized gas into the parison, the clump becomes integrated with the parison thereby providing a plastic product of unitary structure. In accordance with another aspect of the present invention, a parison extrusion nozzle is provided with at least two passages each of which is connected, preferably through a valve, to a corresponding dispensing unit for dispensing a desired molding material. A control unit is provided as connected to each of the dispensing units to control the supply of molding material so that there is obtained a parison having regions of different molding materials.

Abstract: Water-cooled pipes of the type utilized to support steel workpieces in reheat furnaces and the like are insulated by preformed, rigid refractory members. Threaded studs are welded to opposing surfaces of the pipe or the web between a pair of pipes. The pipe(s) are then covered by a ceramic fiber blanket. A pair of the refractory members, each of which contains an aperture through which one of the studs is received, is positioned so as cover the pipe(s) and blanket. Nuts are fastened to the studs to hold the refractory members in place. The refractory members are sized and positioned so that gaps exist between them so as to allow for thermal expansion. These gaps may be filled with blanket insulation or heat-resistant plastic. The remaining portions of the apertures are also filled with heat-resistant plastic.

Abstract: An elbow for conveying particulate material comprising a plurality of tubular shaped sections jointed at a junction to form a flow passage having a bend for changing the direction of material being transported wherein the sections consist essentially of silicon carbide which joined at the junction by sintering to form a unitary elbow.

Abstract: A molding die assembly includes an outer molding die which forms an outer peripheral surface of a cylindrical mold, and, an inner molding die which forms an inner peripheral surface of the cylindrical mold, wherein the outer molding die is comprised of a plurality of split die elements which are split at an oblique separating surface inclined with respect to the circumferential and axial directions of the cylindrical mold.

Abstract: A telescopic conduit passage assembly for extending conduit, such as electrical wiring, through a hole in an exterior wall of a structure. The telescopic conduit passage assembly includes a main tube and an extension tube each having a pair of opposite open ends. A first of the ends of the extension tube is slidably inserted into a first of the ends of the main tube. The main tube and the extension tube each have an outwardly radiating end flange adjacent a second of the ends of the respective tube.

Abstract: A first conduit section (12) has a first end fitting (16) at an inner end thereof and a second conduit section (14) has a second end fitting (18) at an inner end thereof. A first end fitting (20) is movably supported by the first conduit section (12) and has a first terminal (28) adjacent the first end fitting (16). Likewise, a second core element (24) is movably supported by the second conduit section (14) and has a second terminal (30) adjacent the second end fitting (18). The terminals (28 and 30) include male and female portions for snapping the terminals (28 and 30) into mechanical interlocking engagement with one another and a coupling mechanism (36) couples the end fittings (16 and 18) together. The assembly is characterized by a connection mechanism for forcing the terminals (28 and 30) into the mechanical interlocking engagement with one another and thereafter releasing the terminals (28 and 30) for rectilinear movement in response to coupling the end fittings (16 and 18) together.

Abstract: A clean air duct (300) comprises a pair of tubular bodies (302, 310), each tubular body having a pair of opposed ends (304, 306, 312, 314), one of the opposed ends of one tubular body having an annular ring (346) which terminates at an inwardly extending lip (340), the other tubular body having an outwardly extending rib (322) at one end; and a cuff (320) connecting the outwardly extending rib and the inwardly extending lip. Another clean air duct (400) comprises a first blow molded tubular body (406) having a first open end (408) and an annular ring (450) which terminates at an inwardly extending lip (444), and a second blow molded tubular body (402) which has an open end (404). A cuff (412) connects the blow molded tubular bodies to one another wherein the lip (444) exerts a compressive sealing force around the second tubular body (402). Both tubular bodies (402, 406) extend from the cuff (412) in the same direction.

Abstract: A device for providing access to the interstitial region between an inner pipe and an outer pipe which coaxially define the region. The inner pipe has at least one terminal end extending from the outer pipe to leave a portion of the outer wall of the inner pipe exposed to thereby expose the interstitial region. A boot is provided for defining a chamber with a larger end snugly fitting the outer pipe and a small end snugly fitting on the exposed outer wall of the inner pipe. The boot has an access port communicating with the interior of the chamber to provide access to the interstitial region.

Abstract: A pipe having a substantially square cross section portion and a substantially circular cross section portion are disposed alternately in the axial direction of the pipe. The thickness of the circular portion is set uneven in the circumferential direction. In particular, the thickness of the portions of the circular portion that correspond to the corner portions of the square portion is set larger than the thickness of the portions that correspond to the central portions of the respective sides of the square portions. Accordingly, a pipe having corner portions with increased pressure deformation resistance is obtained. Also, the pipe is capable of being manufactured in a high efficiency manner.

Abstract: A cover assembly and methods for covering undersink piping includes insulative cover pieces placed over respective pipe sections such that their ends are adjacent at pipe junctures. Collars are slidable over or inside the cover pieces to be moved to cover the junctures. An alternative cover structure may be wrapped around the pipe juncture to form a generally continuous insulative cover, or alternatively, the fastening structures are insulated such that when the pipe sections are assembled together, the cover pieces and insulating fastening structures form a continuous insulative cover. In an alternative embodiment, one of the cover pieces is dimensioned to slide upwardly and downwardly on a pipe section and a collar structure is placed over the exposed pipe section to provide a continuous cover piece.

Abstract: A subsea flowline or pipeline with passive insulation having improved transient heat-loss characteristics. The flowline or pipeline has a phase change material insulating the flowline pipe joints and/or pipe sections to greatly extend the cooldown time of produced or processed hydrocarbon fluid mixtures being transported therethrough during shut-in conditions. The phase change material surrounds a carrier pipe of the flowline or pipeline. The phase change material may be either dispersed or encapsulated within standard insulation. Additional insulation and/or a jacket pipe surrounds the phase change material and holds it against the carrier pipe. The phase change material can be of a micro-encapsulated or bulk-encapsulated type.

Abstract: A DIY flexible pipe with rigidity comprising a screw typed inner spring sheet, a screw typed outer spring member, a plurality of spring strips, a soft sleeve and many smaller sleeves; wherein, each layer (thread) of the inner spring sheet is provided with many engaging holes for insertion therein the spring strips having engaging teeth, the spring strips string multiple layers of the inner spring sheet, each spring strip in the layers of the inner spring sheet can also be strung up with many smaller sleeves, the inner spring sheet is slipped over with the outer spring member, and the soft sleeve is slipped over the outer spring member; thereby, a user can press to and fro on the pipe gradually as he likes to make a three-dimensional pipe having the curvatures desired, the spring strips, outer spring member and inner spring sheet in the areas bended are engaged with one another to construct a state which is provided with rigidity for bearing loading, or are mutually released to render the pipe to obtain flexib

Abstract: A fluid coupling apparatus for communicating fluid between a fluid hose and a heat exchanger wherein the fluid coupling apparatus minimizes or eliminates the spacing required or necessitated from the bending of a fluid hose. The present invention provides a hollow substantially cylindrical first portion defining a first passageway communicatable with a fluid hose, and a hollow substantially rectangular second portion integrally extending from said first portion. The second portion of the present invention has at least one substantially flat surface wherein an aperture extends through the flat surface of the second portion to provide a second passageway in communication with the first passageway and in communication with the heat exchanger. The second portion has an annular raised shoulder or lip which further defines the aperture and which is utilized to connect the fluid coupling apparatus to the heat exchanger.

Abstract: A ventilation duct includes an envelope lined on the inside by insulation panels. The panels have a lining on the side of the flow channel of the duct and on at least one part of at least one of transverse edges of the duct. This lining extends over at least one part of each of both sides of the edge and is integrated with the panel. Z shaped sections may be used to hold adjacent panels.

Abstract: A method for installing a ducting system with branches, wherein at the point of a branch in an existing duct of the system a tubular branch element with an inlet opening, an outlet opening and at least one branch opening is arranged by removing a duct portion from the existing duct at the point of the branch, by sliding the branch element on one of the free ends of the existing duct resulting from the interruption, re-placing the removed duct portion or a portion identical in shape in the interruption and moving and securing the branch element in such a manner that the inlet opening and the outlet opening engage in sealing manner over the respective ends of the existing duct. In the duct with branches, over the entire length thereof, a bundle of subducts can be arranged, which subducts can then be branched off in a simple manner at the location of a branch. In a duct thus branched-off, for instance a continuous fiber optic cable can be installed.

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 transfer tube system includes a transfer tube, a spring, a pair of opposing seats, and a pair of end assemblies that provide independent axial spring loading of the opposing seats. The spring loading assures continuous sealing contact regardless of dynamic loading, dimensional stack-up, or geometry change resulting from interfaced wear. The transfer tube end assemblies include a spherical or conical seat for mating with the transfer tube. Particularly, the transfer tube has spherical ends for seating in the transfer tube end assembly seats. The conical/spherical seats permit angular motion of interfacing components without lift off and therefore assures minimal leakage.

Abstract: An insulative cover assembly for insulating a P-trap drain piping assembly comprises a unitary body including a first section and a second section joined together at a third section, the first section having an body configured to cover a pipe and having a first end, and the second section having a body configured to cover a pipe and having a first end. The third section couples second ends of each of the first and second sections together and comprises a structurally weakened area therein which is manually separateable for forming first and second cover pieces from said unitary body. The ends of the separated first and second sections further include structurally weakened areas for trimming the lengths of the sections during installation whereby the piping assembly is quickly and efficiently covered and insulated generally without the need for special installation tools.

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.