Abstract: A spoolable composite member having a sensor and an energy conductor embedded in the composite member. The spoolable composite member is capable of being spooled onto a reel for storage and for use in oil field applications. The spoolable tube exhibits unique anistropic characteristics that provide improved burst and collapse pressures, increased tensile strength, compression strength, and load carrying capacity, while still remaining sufficiently bendable to be spooled onto a reel in an open bore configuration. The spoolable composite tube can include an inner protective layer, an inner pressure barrier layer, an interface layer, fiber composite layers, an outer pressure barrier layer, and an outer protective layer.

Abstract: An acoustical and thermal energy insulating liner for gas transfer ducts, primarily in heating, ventilating and air conditioning applications is provided for installation within ducts having curvilinear cross section. The liner is made from a rectangular central block of insulating material such as foam or nonwoven web of glass fibers. A plurality of grooves running the full length of the block second major dimension and parallel thereto are cut through the front face of the block to a depth short of the block thickness. The front face is coated with an elastically deformable substance that forms a barrier layer adjacent the substrate insulating material. The barrier layer bridges the gaps of the grooves and thus contains the insulating material at the floor and side walls of the grooves internal to the central block.The barrier layer can be formed after the grooves are cut by spreading across the front face of the central block a layer of foam.

Abstract: A protective shield for elongated underground utilities such as an elongated underground utility strand or pipe is disclosed. The protective shield includes a foldable elongated flexible sheet of shock absorbing material adapted to both overlie and underlie the elongated underground utilities. The foldable elongated flexible sheet of shock absorbing material includes at least one longitudinally extending fold line that extends in the same direction as the elongated underground utilities and may be transversely offset from a longitudinal midpoint of the foldable elongated flexible sheet of shock absorbing material. In some instances, the foldable elongated flexible sheet of shock absorbing material may include two longitudinally extending fold lines that are transversely offset on each side of a longitudinal midpoint area of the foldable elongated flexible sheet of shock absorbing material.

Abstract: The present invention relates to an adhesive closure system. More specifically, this invention relates to an adhesive closure system with an abridged release liner. Initially, the abridged release liner allows partial exposure of the single adhesive layer to achieve a temporary bond. When desired, the release liner can be removed exposing the remainder of the adhesive to achieve a permanent bond. This type of closure system has numerous applications including the closure system for pipe insulation sleeves.

Abstract: A side entry heat recoverable article. The heat recoverable article comprises a longitudinal body member composed of a cross-linked polymer and having a generally C-shaped cross section. The body member preferably includes circumferential ribs. A layer of adhesive adjacent to the interior surface of the body member may be co-extruded with the body member or provided separately. The heat recoverable article is preferably used for repairing damaged wire.

Abstract: An elastic metal sheet member with thermal expansion material being lined on its internal face is curved to a C-letter shape. A claw is formed downward to a opening side tip, and a engaging mouth is formed to the opposite opening side tip. In this structure, the penetrating member can be fitted to the piping "A" or can be detached from it only by pressing the elastic metal sheet for its contraction in diameter with one hand.

Abstract: Conduit liners and methods for their construction and use are provided. The liners include a first flexible layer mechanically bonded to at least one glass-containing layer and folded to form a tubular laminate. The laminate can be penetrable by resinous liquid capable of setting the form of substantially continuous matrix within the laminate following the expansion of the laminate within a conduit. In preferred versions of the liner, multiple glass layers are provided on the inner and outer diameter of the construction with a polyester core so as to meet minimum thickness requirements for vibration resistance under American in situ pipe vibration resistance codes.

Abstract: Conduit liners and methods for their construction and use are provided. The liners include a first flexible layer mechanically bonded to at least one glass-containing layer and folded to form a tubular laminate. The laminate can be penetrable by resinous liquid capable of setting the form of substantially continuous matrix within the laminate following the expansion of the laminate within a conduit. In preferred versions of the liner, multiple glass layers are provided on the inner and outer diameter of the construction with a polyester core so as to meet minimum thickness requirements for vibration resistance under American in situ pipe vibration resistance codes.

Abstract: A flexible wear sleeve for protectively surrounding one or more flexible cables or conduits leading to a spot-welding machine or an arc-welding machine or robot, the wear sleeve being formed by joining opposed edges of a flexible web to one another by a zipper connection. The flexible web is formed from a tough, durable material, such as a KEVLAR.RTM. material, and its opposed edges are also provided with elements of a VELCRO.RTM. connection to overlie the zipper and protect the zipper from contact with welding flash and/or foreign material. The flexible web is provided with at least one longitudinally extending pocket, and a flexible rod is inserted into the pocket to provide the flexible wear sleeve and the flexible cables or conduits protected thereby with an elastic memory to cause them to return to an undistorted configuration after removal of a distorting load therefrom and to provide a controlled bend radius thereto.

Abstract: A ferrule includes a tubular wall and end wall which is divided into radially extending fingers, each of which terminates at a barb member formed by deflecting a tapered end portion of the finger. The end wall fingers extend orthogonally to the longitudinal axis of the tubular wall and the barb members are each inclined at an acute angle to the carrying fingers and axis such that when a tubular body, such as a braided or like textile sleeve, is received in the tubular wall and the end all is swaged to cause the fingers to enter the body and lie flat against the tubular wall, the bars are caused to penetrate the body and be flattened by the tubular wall to point in the direction towards the body end and inhibit its removal. The tubular wall may be circumferentially continuous (annular) or discontinuous (slit) and openable.

Abstract: Conduit liners and methods for their construction and use are provided. The liners include a first flexible layer mechanically bonded to at least one glass-containing layer and folded to form a tubular laminate. The laminate can be penetrable by resinous liquid capable of setting the form of substantially continuous matrix within the laminate following the expansion of the laminate within a conduit. In preferred versions of the liner, multiple glass layers are provided on the inner and outer diameter of the construction with a polyester core so as to meet minimum thickness requirements for vibration resistance under American in situ pipe vibration resistance codes.

Abstract: A wiring harness shroud to enshroud a wiring harness. The shroud holds pigtails, takeouts, connectors, harness hold-downs and the like which otherwise extend from the harness against a trunk of the harness so that it can be inserted through an opening in a firewall or other structural member of a motor vehicle or other product for installation of the harness. Once inserted through the opening, the shroud is removed, by a zipper closure device which initially maintains the shroud as a tubular structure but can be released to open the tubular structure to facilitate shroud removal.

Abstract: Conduit liners and methods for their construction and use are provided. The liners include a first flexible layer mechanically bonded to at least one glass-containing layer and folded to form a tubular laminate. The laminate can be penetrable by resinous liquid capable of setting the form of substantially continuous matrix within the laminate following the expansion of the laminate within a conduit. In preferred versions of the liner, multiple glass layers are provided on the inner and outer diameter of the construction with a polyester core so as to meet minimum thickness requirements for vibration resistance under American in situ pipe vibration resistance codes.

Abstract: In a wire harness protector, a pipe wall has a structure in which wall portions rectangular in section and wall portions circular in section are disposed alternately in the longitudinal direction, a cutting line used for insertion of the wire harness and passing substantially centers of flat sides of the sectionally rectangular wall portions is formed over the entire length of the pipe wall, and the whole of pipe wall is formed of synthetic resin or rubber.

Abstract: Convoluted tubing for automotive wiring harnesses and other elongated substrates is provided with sound dampening qualities by filling the valleys between convolutions with a flexible, resilient foamed composition, such as silicone rubber, and foaming the composition to cause expansion of the foam so that ribs of foam project radially from the valleys. In a preferred embodiment, spaced apertures are formed in the valleys to allow the expanding foam to form radially inwardly projecting fingers which contact the wiring harness and act to dampen vibrations. The corrugated tubing may be axially slit and the slit allowed to be filled with the foamed composition which, when foamed, eliminates noises caused by movement of the edge surfaces of the slit when torsional forces are applied to opposite ends of the tube.

Abstract: A combination rubber/composite hose comprising an inner composite hose section and a surrounding outer rubber textile reinforced hose section sealingly fastened together at their ends, but free to shift longitudinally and bend with respect to each other.

Abstract: A method and apparatus is provided for forming clear shrinkable film material for use as labels on containers. A blend of general purpose polystryene and styrene-butadiene or styrene butyl acrylate is extruded from an annular extruder die orifice to form a frustoconical tube which is stretched before cooling air is applied to form a clear film that has machine direction orientation and cross direction orientation that can be used as a shrinkable label on containers. As the tube is extruded, it is shielded from cooling air which is applied downstream from the extruder die orifice. The apparatus shields the hot annular extruded material adjacent the die orifice. The air is supplied downstream from an annular air orifice which is designed with a taper that allows ambient air to be freely drawn in and eliminates what would be a negative pressure zone immediately downstream of the air orifice while eliminating air turbulence and improving cooling.

Abstract: An arrangement for tightly enclosing a substrate with a heat-shrinking plastic sleeve (1), which has thickened sections (2, 3) along its longitudinal edges, has at least two rails (4, 5) pushed on the sleeve (1) after it has been placed around the substrate. The rails hold the longitudinal edges of the sleeve (1) together before, during and after the heat-shrinking. The two rails (4, 5) form a junction area and S-shaped profiles (6, 7) are placed in the junction area on both sides of the thickened edge sections (2, 3) and are enclosed by both of the rails (4, 5).

Abstract: A tubular sheath made from plastic material used for the mechanical and/or thermal protection of electric cabling is wrapped in a strip of sound-insulating material, the lateral parts of which have been inserted inside the sheath through the slit. The width of the strip, preferably produced from felt, is substantially equal to the sum of the external and internal perimeters of the plastic sheath.

Abstract: Disclosed are flexible, kink-resistant shaped fabric products which are particularly well adapted for protecting and/or covering elongate substrates, such as cables, conduits, wiring and the like. The shaped fabric products include a wall portion comprising a filament resiliently set in a spiral configuration with respect to the longitudinal axis of the shaped product. The wall portion may also preferably comprise a filament in the form of circumferential hoops substantially conforming in shape and size to the cross-sectional configuration of the shaped product.

Abstract: The present invention relates to corrugated protective sleeves (10) and for enclosing lengths of conducting equipment, such as cables, wiring and tubing, and more particularly to corrugated sleeves (10) and formed of a single piece of plastic. The corrugated protective sleeve includes an inner surface (14) and an outer surface (20) which is slit open to form male (36) and female (26) locking members which are adjoined once the conducting equipment has been inserted therein. Various methods for providing the locking areas as a part of the corrugated tubing are shown.

Abstract: A flexible metal piping assembly includes a body with corrugations having spiral (helical) or annular configurations. End connections are mounted on the body ends, which can be flanged or male-threaded. A layer of insulating or sealing material can be applied over the body. The end connections can be male-threaded or female-threaded. A bellows configuration is provided with annular corrugations which taper in proximity to the body ends.

Abstract: A flexible cable holder is disclosed comprising a flexible web with a plurality of edge fasteners along opposite edges of the web. The edge fasteners are engaged, forming an enclosed duct for retaining cables, wires and power cords. End fasteners are provided at the ends of the web for attaching adjacent cable holders end-to-end. The web is flexible allowing the cable holder to form bends without special fittings or devices. End fasteners may be connected to edge fasteners to form branch connections.

Abstract: A reusable insulation jacket for tubing elbow and valve connectors carrying extreme hot and cold materials comprises a polygonal fiberglass mat. The mat is stitched to form a cavity as to completely receive the tubing connector and to overlap itself whereat complimentary releasable fastening hook and loop material securely hold the mat in place to insulate the tubing connector from fire and to prevent an individual from otherwise being burned from contacting the connector.

Abstract: A peristaltic pump having a pump conduit with an occlusive inlet segment. The pump includes a frame with rollers carried by rotor and rotated by a motor. A flexible conduit having an inlet end and an outlet end is positioned around the rollers and includes an occlusive segment and non-occlusive segment. In its free condition, the occlusive segment is collapsed and the passageway through it substantially completely occluded when the pressure within the occlusive segment is equal to or less than pressure acting on the outside of the occlusive segment. The non-occlusive segment is mildly biased to exhibit an inflated condition with an open passage when in its free condition with the pressure within the non-occlusive segment equal to pressure acting on the outside of the non-occlusive segment.

Abstract: A tubular liner for use in softlining methods of pipe rehabilitation. The tubular liner is constructed of plastic materials or laminates of plastic material which have one or more resin-absorbing layers. The tubular liner of the present invention is made by stitching together the faces of the liner material to form a tube. The seam of the tube is then sealed and the sealed seam is fused to the tube. The resulting structure provides a durable tubular liner that resists rupture or leakage of the seam during use in pipe rehabilitation operations.

Abstract: A tubular sheath made from plastic material used for the mechanical and/or thermal protection of electric cabling is wrapped in a strip of sound-insulating material, the lateral parts of which have been inserted inside the sheath through the slit. The width of the strip, preferably produced from felt, is substantially equal to the sum of the external and internal perimeters of the plastic sheath.

Abstract: A sandwich type composite adhesive construction in a simpler form, composed of a central release liner having a permanent adhesive layer on one side thereof and a pressure sensitive adhesive layer on the other side preferably separated therefrom by a release coat or member, and at least one release member on said adhesive layers but in a more complex form containing additional carrier layers or strengthening members including at least one or more support layers between two layers of permanent pressure sensitive adhesive. This adhesive construction provides a product, such as a pipe insulation that has unique properties and is cost effective.

Abstract: By providing a multi-layered, self-sealing, adhesive system constructed for being laminated directly to a thermoplastic or elastomeric elongated tube, a highly effective, easily employed, closure system for securely sealing the elongated slit of elongated, thermoplastic or elastomeric tubes is obtained. In the preferred embodiment, the multi-layered, self-adhering, sealing system of this invention is manufactured in a substantially continuous elongated strip and incorporates a laminating film layer and a film support layer. In this way, secure, integral bonded affixation of the sealing system to the elongated tube is attained in a unique cost-effective, highly efficient manufacturing process. In addition, by integrally affixing the laminating film layer and the film support layer along both sides of the elongated slit of the tube, an adhesive engaging surface is provided for assuring secure, leak-free sealed closure of the elongated tube.

Abstract: A porous fibrous sheet material for use in the manufacture of food casings and the like is pressed prior to bonding and is bonded with about 10% by weight or less of a non-viscose bonding agent. The pressed and bonded material can be used to form casings having characteristics of thinness and elasticity similar to the thinness and elasticity of viscose-bonded casings, without the environmental problems associated therewith. The non-viscose bonding agent will result in significantly less shrinkage in the base web than results from viscose bonding.

Abstract: A heat shrinkable wrap-around sleeve comprises a heat shrinkable sheet with a heat stable strip welded on one end. The free end of the heat stable strip is overlapped on the outer side of the opposite end of the sheet and welded thereto by heating applied directly on the outer side. This allows the material of the strip to differ in its properties from the material of the sheet, so that the nature of welded closure can be tailored to particular applications. It also allows manufacture of sleeves having hold-down adhesives applied on them to be conducted with greater ease and economy. The sleeve can be manufactured using continuous welding, for example by heated wedge welding.

Abstract: A duct device for insulated delivery of temperature controlled air. The device comprises an elongated, tubular member configured as a conduit for delivery of air and having a tubular wall fabricated of non-load-bearing insulative material. This insulated material includes at least one continuous gap formed into the tubular wall and extending along the tubular member. This gap is filled with a rigid binder which bonds to the insulative material and is capable of reinforcing the structural strength of the tubular member. This binder filled gap operates as a strut, which may be positioned longitudinally along the tubular member, or in other patterns such as a helical configuration. Reinforcing structure is also disclosed for the end sections of the tubular member, along with interconnecting structure.

Abstract: Process for the manufacture of a flexible polymeric structure comprising a sealant barrier, consisting of a multilayer film a few microns thick, oriented longitudinally, in a continuous manner, whereby all of the components of said flexible structure are intimately bonded by a final heat treatment. Flexible polymeric structures manufactured according to this process. Application to the fields of the transport of all fluids and protection against external aggressive agents.

Abstract: Process for the manufacture of a flexible tubular structure comprising a sealant barrier, consisting of a monolayer film a few microns thick, oriented longitudinally, in a continuous manner, whereby all of the components of said flexible structure are intimately bonded by a final heat treatment. Flexible tubular structures realized according to this process. Application to the fields of the transport of all fluids and protection against external aggressive agents.

Abstract: A plastic film is reinforced with a fiber material which exhibits on at least one of its two surfaces an impregnation or covering, which includes a plastic consisting essentially of a copolymer of at least two different monomeric units selected from the group consisting of a vinyl ester, a maleic ester, a fumaric ester, an acrylic ester, a methacrylic ester, a linear alpha-olefin of from 2 to 8 carbon atoms and styrene. The film is suitable for producing tubes with a longitudinal seam. The tubes are used in particular as artificial sausage casings.

Abstract: A peristaltic pump having controlled suction. In one embodiment, the pump includes a tubing which is collapsed when the internal pressure of the tubing is equal to or less than ambient. In this state, the pump is unable to generate negative pressures. An air-tight housing may be provided over the tubing and connected to a vacuum source. Upon a vacuum being applied, the tubing is capable of controllably producing negative pressures, allowing the pump to be operated as a suction pump. In another embodiment the tubing exhibits a variable cross-sectional width.

Abstract: A lining material for pipe lines, especially those buried in the ground such as sewage pipe lines, and a process for providing such pipe lines therewith, includes a flexible tubular film, a resin-impregnated sheet covering the outer surface of the flexible tubular film, and a tubular covering material having a strong resistance to tensile force. The sheet may be constructed by several units of sheet fractions which are overlapped in both lateral end portions so as to be slidable over each other in opposite directions to form a tubular sheet. The lining material is applicable for repair/and reinforcement to the inner surface of a pipe line having damages portions. According to the process for providing pipelines with this lining material, thermocuring of the lining material applied onto the inner surface of a pipe line can be carried out by moving a nozzle for jetting pressurized steam from one end to the other end of the pipe line without applying high pressure to the pipe line.

Abstract: Package stuffing material is formed by rolling strips of relatively rigid paper stock to cylindrical bodies. The strip is rolled so that the outer longitudinal edge is adhered to the outer surface of the cylinder while the inner end hangs free. The inner end extends between a 90.degree. to 180.degree. arc along the inner wall and when the cylindrical is pressed its edge engages the wall substantially limiting the degree of distortion.

Abstract: Flat, rectangular composite insulation comprising two dissimilar insulating materials on a separate flexible backing material is described. At least one of the two dissimilar materials is rigid. V-grooves are formed in the dissimilar materials extending from the surface of the insulation opposite of the flexible backing up to, but not through the flexible backing. The V-grooving permits the rigid composite insulation to be fitted to a curved surface such as a pipe.

Abstract: A multiple layer wraparound sleeve having a heat shrinkable backing layer and at least one functional layer has the functional layer as a discrete sheet which is connected to one end of the backing layer, and is of at least sufficient length that, when the sleeve is wrapped around the pipe or other substrate at least twice, the functional layer sheet wraps around the substrate first with its ends overlapping and the backing layer wraps around the functional layer sheet with its ends overlapping. This allows wrappings of reduced thickness to be employed without problems of voids occurring between the functional layer and the substrate.

Abstract: An assembly capable of sealing an elongate substrate that is curved or angled along its length, which has a heat-shrinkable wraparound sleeve (1) having closure rails (3) adjacent opposing longitudinal edges thereof which can be held together by positioning a closure member thereover to maintain the sleeve in the wrapped-around configuration during heat-shrinkage and the closure member, which comprises an elongate channel (7) of sheet material substantially C-shaped in transverse cross-section having transverse first and second slits (9, 10) therein that extend substantially entirely across its width, respective first and second slits extending through each longitudinal edge, and giving the channel flexibility in two mutually perpendicular planes.

Abstract: A wiring harness is enshrouded in a tubular length of stretchable material. The shroud holds pigtails, takeouts, connectors, harness hold-downs and the like which otherwise extend from the harness against a trunk of the harness so that it can be inserted through an opening in a firewall or other structural member of a motor vehicle or other product for installation of the harness. Once inserted through the opening, the shroud is removed, preferably by means of a closure device which initially maintains the shroud as a tubular structure but can be removed to open at least a portion of the tubular structure to facilitate shroud removal. To facilitate installation of the shroud onto a wiring harness, the shroud is initially stretched over a tubular applicator to expand the shroud.

Abstract: A flexible duct adapted to be suspended from a support and method of making same. The duct comprises a conduit of heat-sealable plastic film having a longitudinally extending fin on the conduit for suspending the conduit. The fin comprises first and second face-to-face layers of heat sealable film. The fin includes spaced apart reinforced regions which are adapted for engagement with fasteners for suspending the conduit. The reinforced regions comprise portions of the first and second layers which are heat-sealed together. According to the method, a duct is made from an elongate tube of flexible heat sealable material. The sidewall of the tube is joined to itself along a longitudinal line to define a first relatively larger tube forming a longitudinally extending conduit, and a second relatively smaller tube forming a longitudinally extending double-walled fin for suspending the duct.

Abstract: A peristaltic pump having controlled suction. In one embodiment, the pump includes a tubing which is collapsed when the internal pressure of the tubing is equal to or less than ambient. In this state, the pump is unable to generate negative pressures. An air-tight housing may be provided over the tubing and connected to a vacuum source. Upon a vacuum being applied, the tubing is capable of controllably producing negative pressures, allowing the pump to be operated as a suction pump. In another embodiment the tubing exhibits a variable cross-sectional width.

Abstract: The present invention relates to a plastic abrasion resistant protective sleeve for covering a radiator hose. The sleeve of the invention has an annularly corrugated external surface comprising a plurality of projections and troughs formed in said sleeve. The projections are substantially evenly distributed and have a substantially uniform size. The sleeve has a slit along its longitudinal axis which provides for easy application to or removal from the hose, and is made of plastic that is substantially unaffected by high temperatures. A method of using said protective sleeve for protecting a radiator hose from abrasion also is provided.

Abstract: A self-regulating peristaltic pump having a pumping chamber of enhanced operating life. The operating life of the tubing is improved by a combination of features including providing the tubing with a naturally collapsed passageway. The tubing is collapsed when the internal pressure of the tubing is equal to or less than ambient. In this state, the pump is unable to generate negative pressures. Upon fluid being supplied to the tubing at a pressure greater than ambient, the tubing inflates and cooperates with rollers of the pump to transmit the fluid. The pump also includes a novel means for adjusting and regulating the tension of the tubing further enhancing the operating life of the tubing.

Abstract: A double-wall composite pipe comprises a permeable annulus structure separating impermeable inner and outer walls. The permeable annulus structure has micro-fractures formed therein that function to reduce the flow rate and pressure of fluids leaking through the inner wall to thus inhibit fluid leakage. The annulus structure resists the stresses produced by internal fluid pressures and other service loads. The inner and outer walls will remain permanently impermeable while the pipe annulus structure undergoes stress-induced dimensional changes. A coupler assembly mechanically connects each longitudinally adjacent pair of pipes together and comprises two semi-cylindrical half-couplers, a compressible seal ring, a cylindrical retaining sleeve, and a flexible boot that encloses and seals the assembled half-couplers. A leak detecting sensor may be located at the coupler assembly. A preferred method and apparatus for making the pipe and coupler assembly are also taught.

Abstract: An improved flexible boot 20 is provided for protecting aircraft operating mechanisms such as bearing 18 from foreign objects such as sand and dirt. The boot 20 has a slit 30 and an associated resealing arrangement 39 which allows the slit 30 to be resealably closed. The resealing arrangement 39 thus enables the protected mechanism or bearing 18 to be inspected without removal of, or damage to, the boot 20 while still allowing the boot to retain its ability to protect the bearing 18 from foreign object damage. The preferred resealing arrangement 39 is of the hook and loop type which is sold under the registered trademark Velcro.RTM..

Abstract: A lining material for pipe lines, especially those buried in the ground and a process for providing pipe lines therewith are disclosed, which includes a flexible tubular film, a sheet covering the outer surface of the tubular film and a film capable of being split off covering the outer surface of the sheet, characterized in that the sheet includes a fabric and a mat of fibers of high tenacity impregnated with a thickened liquid thermohardenable resin to form a fabric-fiber-reinforced composite molding sheet having a sufficient length and a width greater than the inner circumferential length of a pipe line to be treated, and that both lateral end portions of the sheet are slidably overlapped with each other to form a tube around the tubular film, the outer circumferential length of the tube being shorter than the inner circumferential length of the pipe line.

Abstract: Pipeline repair and leak sealing are effected by unrolling a tube, using an inflatable mandrel disposed inside the tube, to radially expand a stretchable and circumferentially continuous gasket or sealant sleeve into flush contact with the pipeline interior. Before actuation, the tube is constrained in a rolled-up condition by a shrink-wrap sleeve of plastic film that may be sealed at its ends to an interior film sleeve in order to protect the tube against moisture. When fully expanded, the tube includes longitudinally-extending edges that overlap and are secured together by adhesive issued from a rupturable package disposed proximate one of the edges so as to be caused to burst as the edges approach overlapped positions. An outer sleeve of scrim material surrounds the tacky or gum-like gasket sleeve to facilitate handling and movement of the assembly in the pipeline.