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 having one or more resin-absorbing layers. The tubular liner 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 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 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 a good quality welded connection to be formed without requiring the use of hold-down adhesives. The sleeve can be manufactured using induction welding or more preferably by heated wedged welding.

Abstract: For protecting electrical installations against electromagnetic interferences and especially against over-voltages as can for instance occur as a consequence of lightning strikes, electrical lines provided between individual electrical apparatus are laid in a flexible hollow tubular member having an electrically conducting surface and at least one separation or division in its longitudinal direction. The hollow member is also provided with an undulated profile. The hollow member can be designed either as divided tubular sections or as cable channels or ducts provided with a covering member.

Abstract: A scented pole cover for covering closet poles, shower curtain poles or the like is disclosed. The pole cover is an elongate, hollow object having a slit along the entire length thereof. In operation, the slit is expanded to fit over a pole and the pole cover snaps into snug engagement about the pole. Also disclosed are extrusion methods for fabricating the pole cover of the invention.

Abstract: An external pipe protector for protecting steel or plastic pipe against damage is disclosed. The protector includes a flexible sheet of shock absorbing material which is shaped and sized to encircle at least part of the length of the pipe. Opposite ends of the shock absorbing material are positioned and secured in overlapping relationship to one another by fastening elements provided on the opposite overlapping ends of the shock absorbing material. The fastening elements are confronting adhesive surface attached to the opposite overlapping ends of the shock absorbing material. Strippable covers are initially attached to the adhesive surface prior to use thereof, and are easily removed to enable the adhesive surfaces to be brought into confronting relationship to one another.

Abstract: Ventilation ducting having a substantially oval and/or elliptical cross-section includes an intermediate section, and an end section at opposite ends of the intermediate section. Both the intermediate and the end sections include a pair of adjacent ducts. The ducts in the intermediate section are separated along their length by a common wall. The common wall may be perforated sheet, mesh or net material. The ducts at each end section are separate tubular members. An engaging device is provided at the intermediate section for suspending the ducting above the ground. A coupling device is provided at each end of the intermediate section for joining together adjacent lengths of the ventilation ducting.

Abstract: A rectangular, flexible duct serves as an alternative to galvanized sheet metal duct work installed in homes by utilizing corrugated semi-rigid top and bottom walls with relatively flexible connecting side walls so that the duct may be easily rolled and stored. But when unrolled, it is fastened, for example, between floor joists of a home by use of an overhanging flange formed by one of the top or bottom walls. The duct walls are made of heat resistant plastic suitable for heating and ventilating. Rigidity is provided in the top and bottom walls by corrugations or ribs formed in the plastic.

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: Provided is a flexible reinforced hose (50) having an inner core tube (2) for conveying fluids surrounded by two layers of tensioned fibrous reinforcement layer (4, 8) between which is disposed a spirally wound flexible polymeric tape (6) which is unbonded to either of the reinforcement layers and free to move relative thereto under flexing and pressure pulsing conditions and which is adapted to prevent moisture from pentrating core tube (2) from outside of hose (50). Other preferred embodiments include hose (60) in which a flexible polymeric tape (12) is applied longitudinally and hose (70) where the tape is a flexible polymeric metal composite tape (20) as well as hose (32) in which the reinforcement layers (32, 36) are oppositely helically wound.

Abstract: A rigid or semi-rigid cover for installation over an insulated pipe fitting is provided. The cover is pre-cut in the geometric design that enables it to conform to the shape of the pipe fitting when installed.

Abstract: A one piece pipefitting cover for insulated Y-shaped joints, including strainers or lateral 45.degree.-Y fittings, made of a flexible material, i.e., polyvinyl chloride, comprising a relatively flat base symmetrical about its center axis having oppositely facing lateral members and semi-circular edge members along its sides wherein when rotated about its center axis forms a cover conforming to the shape of the insulated fitting.

Abstract: A method and apparatus for the promoting movement of a cable-like element in a selected direction in a pipe with the assistance of a flowing agent moving in the selected direction in the pipe include the use of profiles arranged on the external surface of the cable-like element to produce turbulence which promotes co-movement of the cable-like element in the pipe, together with the flowing agent in the selected direction. A number of different turbulence generating flow promoting structures for the profiles are disclosed.

Abstract: A removable sleeve for covering a metal tubular handrail for a swimming pool or spa comprises an elongated substantially rectangular sheet of synthetic elastomer having a sheet of fabric bonded to the exterior surface thereof, and releasable securing structure extending along substantially the entire length of the opposite edges of the elongated sheet for joining the opposite edges to secure the sleeve around and along the tubular handrail.

Abstract: The present invention relates to a plastic abrasion resistant protective sleeve for covering a radiator hose. The sleeve of the invention has a 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 secondary confinement pipe is assembled from identical segments of extruded polyvinylchloride with tenon and groove formations along longitudinal edges enabling the segments to be interfitted. The joints are sealed by flexible synthetic resin coextruded with one of the formations at respective edges.

Abstract: A powder-filled welded steel tube has a tube wall with a welded longitudinal seam and is wound into a coil for despatch. To reduce the risk that the seam opens when the tube is twisted, e.g. on uncoiling, the tube wall is provided with a continuous longitudinal groove. Preferably the groove is symmetrical and directed radially inwards. In the continuous manufacture of such tube, a metal strip is formed into an open channel, powder is introduced into the channel, the channel is closed and the edges welded to form a closed tube. The diameter is then reduced and the finished product is coiled. The longitudinal groove is rolled in continuously during the diameter reduction of the powder-filled welded tube.

Abstract: A polished surface protective sleeve that is used for covering the electrical cord of a car wax polishing and buffing machine. The protective sleeve is formed of an elongated tubular member having an internal diameter greater than the outside diameter of the electrical cord. The outer surface of the tubular member is entirely covered by a layer of soft unabrasive material. The protective sleeve has been designed to eliminate the situation when the electrical cord is dragged across a polished car surface while buffing an adjacent area.

Abstract: The apparatus of the instant invention includes a surface traversing mobile frame which, in the preferred embodiment, transports the elements of the invention. Means for dispensing a continuous length of hollow sheath and for dispensing a continuous length of signal-transmitting cable are provided. An assembly table for inserting the cable into the interior of the sheath includes a device for dividing a side of the sheath. Devices for forming a subsurface trench and for training the assembly produced by the assembly are mounted on the frame.The method of the invention includes opening the side of a hollow sheath along its length, and directing a cable into the opening to produce an elongate, continuous assembly of sheath having the cable inside of it. The wall of the plastimer sheath is permitted to assume a non-joined, closed condition along the region previously opened.

Abstract: The present invention relates to a unique fiber-reinforced metallic tubular element, along with a unique method for producing such tubular elements on a production basis. The tubular element includes a cylindrical aluminum tube surrounded by a fiber composite sleeve which includes a plurality of individual reinforcing graphite fibers oriented parallel to the longitudinal axis of the tube and uniformly positioned about the circumference of the tube. In the preferred embodiment of the invention, an isolation layer is positioned between the graphite reinforcing layer and the outer surface of the aluminum tube, and a protective covering layer of fiber material surrounds the tube and is adhered to the outer surface of the graphite reinforcing layer. In the preferred method of the present invention, a plurality of cylindrical metal tubes are coupled to one another in an end-to-end relationship by a plurality of joining plug members to form a longitudinally extending series of metal tubes.

Abstract: A sleeve tube which has a single, longitudinal division or opening and is movable from a spread condition to a closed condition to form a circle of a first radius and coact with end sealing elements to form a cable sleeve. In the spread condition, the sleeve has a continually changing curvature, with the radius of curvature of the sleeve at a point opposite the opening being on a maximum radius of curvature and the radius of curvature continuing decrease as the openings are approached so that when the sleeve is moved to the closed position, all portions of the sleeve are deformed a slight amount from the relaxed, opened position to the closed position. Thus, a uniform closing pressure can be obtained on the entire periphery of each of the end sealing members.

Abstract: An abrasion resistant sleeve for flat substrates, for example ribbon cable and the like, which includes a hollow flexible sleeve made from a fabric of engineering plastic that has been flattened to define two edges, each of which has a top and a bottom layer. The layers of each edge are bonded together permanently while the sleeve is in the flattened condition to maintain the sleeve in said condition. Preferrably the sleeve is axially compressible and radially expansible.

Abstract: A wraparound sleeve has closure members, typically in the form of upstanding rails, at its longitudinal edges. A channel having a discontinuity along its length is positioned over the closure members to hold the sleeve in a closed configuration. A clip is positioned between the closure members and the channel to bridge the discontinuity in the channel.The discontinuity in the channel preferably extends through the channel entirely, so that the channel is in two or more parts, which can be installed end to end.The discontinuity in the channel aids installation, particularly where the closure to be formed is of long length.This application is a continuation of application Ser. No. 920,493, filed Oct. 17, 1986, now abandoned, which is a continuation of application Ser. No. 071,536, filed July 9, 1987, now abandoned.

Abstract: This invention supplies an adhesive construction for insulation, preferably pipe insulation, having at least one coat of adhesive on at least a part of a face of the slit with a release member to keep the adhesive from adhering to the second face and a method of making the same article.

Abstract: A plastics elbow cover (A) capable of being positively and securely mounted on an elbow section of piping. The elbow cover includes a tab (9, 10) extending from each of two sides of a cover section (8) which fits over the pipe. One of the tabs (9) includes: a tongue (9a) which engages a hole (10c) formed by a bridge (10d) on the other tab (10).

Abstract: A plastics cover for a piping which comprises a plastics cover body of a wide strip-like shape and a substantially T-shaped rib arranged on one side edge of the cover body. The rib includes a leg portion connected to the cover body and a wing portion, so that an inner groove and an outer groove is defined between the wing portion and the cover body. Mounting of the cover on a pipe is carried out by interengaging a first engagement projection on the inner surface of the wing portion and a second engagement projection on the outer surface of the other side edge of the cover body.

Abstract: A plastic drip irragation tape of unitary construction is disclosed that employs a water impervious polyethylene film folded lengthwise with the edges overlapped and joined together in a heat sealed seam to form a flat flexible conduit. A narrow preformed groove along one edge defines a small secondary conduit within the seam that resists deformation to maintain a consistent controlled drip rate along the tape. Breaks in the seam at regular intervals form inlets through which irrigation water flows from the main conduit into the secondary conduit and outlets through which the water is emitted from the secondary conduit to the soil.

Abstract: A sleeve assembly including a pliable sheet and a coupling strip is provided. The coupling strip is adapted to interconnect the ends of the pliable sheet to form a cylindrically-shaped unit. The ends of the pliable sheet are formed to include flukes that are configured to engage the coupling strip. The coupling strip includes a rigid base member and a spaced-apart, substantially parallel seesaw member. The seesaw member is joined to the base member by a pivot beam. The seesaw member has a first leg and a second leg, with the first and second legs cooperating with the base member to form first and second nests for receiving the flukes of the pliable sheet. The seesaw member is permitted to pivot somewhat with respect to the base member to equalize the capturing forces of the first and second nests to enhance the strength and rigidity of the assembled sleeve assembly.

Abstract: A pipe hanger insulation support is provided and consists of a top segment of heavy density insulation shaped to fit upon top of a pipe, a bottom segment of high compressive strength insulation shaped to fit upon bottom of the pipe and a jacket to surround both segments in which a pipe hanger can bear against.

Abstract: A unitary retainer cup adapted for being attached around a continuous vertical pipe so as to retain particulate materials in the cup. The cup has a lower cylindrical sleeve portion and a conical-shaped upper retainer portion including suitable clamp means which permits mating edges of a longitudinal joint in the cup to be retained together. The cup can be constructed of thin sheet material which is sufficiently flexible to permit it being placed around a pipe and clamped firmly onto the pipe. The lower sleeve portion is lined with a resilient material to accommodate irregularities in the surface of the pipe. The cup conical portion has a drain opening provided near its lower end to permit periodic removal of accumulated material from the cup.

Abstract: A composite fuel and vapor tube having increased heat resistance with a composite wall having a relatively thin nylon liner, a metal strip about the liner and having a longitudinal seam, the tube being encased within a polyethylene jacket. The line thus formed has increased resistance to heat, abrasion and various fuels, is bendable and is capable of maintaining its shape after bending or forming operations.

Abstract: A heat shrinkable closure is disclosed having a central section which has been hot stretched and cooled while in stretched condition sandwiched between a pair of unstretched end sections and in which one end section has a tapered grooved extension.

Abstract: The present invention relates to a lining material suitable for reinforcing various pipe lines buried in the ground, which is made by inserting an unwoven fabric of a specific structure into the interior of a conventional air-impervious tubular fabric having a film of a synthetic resin on the exterior surface thereof and is passed through a pipe line while being evaginated under fluid pressure and which possesses earthquake-resistance and shape-maintaining property against external hydraulic pressure in addition to the characteristics required for conventional lining materials.

Abstract: An in-line heater for an aerosol delivery system has an elongated tubular electrically insulated plastic body having first and second ends coaxially aligned along the major axis of the tubular body. The first and second ends contain an aerosol inlet and outlet, respectively. The plastic body has an unrestricted flow passage therein from the first to the second end and a self supporting electrically conductive spiral mesh heating element loosely fills the flow passageway within the body. The mesh heating element has a very low mass so as to be almost instantaneously responsive and extends across the space between the side walls of the flow passage to maximize the surface area thereof exposed to the aerosol mixture flowing through the passage. First and second terminals are adjacent the first and second housing ends, respectively, and are connected to the ends of the spiral mesh heating elements by a pair of crimped connector plates.

Abstract: A high tensile strength and high abrasion resistant removable hose covering and method of construction is described for fabricating a reusable, removable hose covering adapted to surround an inner hose by which high tensile strength in the longitudinal direction may be imparted to the combination of the inner hose and removable hose covering and in addition, extreme high resistance to environmental abrasion is obtained. The inner hose is constructed by conventional methods.

Abstract: An improved self-sealing valve for use in a fluid fillable device includes a main body portion and a channel within the main body portion for receiving a fill tube. The improvement includes a sealing portion with the channel extending therethrough and movable from a fluid flowable position with the fill tube inserted in the channel to a curled, fluid sealing position when the fill tube is removed from the channel.

Abstract: An air gap pipe and a method for forming the same are provided. The air gap pipe includes a non-linear outer pipe and an inner pipe of identical configuration disposed concentrically within the outer pipe. The inner pipe is supported by resilient dimples in the outer pipe. The outer pipe is placed in a condition for receiving the inner pipe by longitudinally cutting the outer pipe in half with a pre-programmed plasma arc or laser cutting apparatus. The two halves of the outer pipe are secured together to provide vents, if necessary, for selective dissipation of heat.

Abstract: Disclosed is a tubular packaging casing suitable for use as a sausage casing and a flat film for forming same, the flat film being shaped into a tubing and comprising cellulose hydrate, preferably fiber-reinforced cellulose hydrate. The edges of the flat film are bonded by means of a sewing thread, and in the area of the sewing thread, the packaging casing has an increased content of plasticizer and, optionally, also an increased moisture content. Furthermore, a flat film for producing the packaging casing is disclosed, which has an increased content of plasticizer and optionally also of water along its two edges.

Abstract: A protective covering for the piston rod of a telescoping spring element which includes a gas pressure cylinder and a piston rod. For protecting the piston rod during painting of the motor vehicle, the gas pressure cylinder is surrounded with a protective covering of sponge rubber which surrounds in a fluid-tight manner the cylinder casing and a sealing disk arranged at the free end of the piston rod. For the rapid removal of the protective covering after the painting operation, it is provided with a radially projecting tearing extension which has at its two base edges one cross-sectional reduction each formed by a longitudinal groove. The protective covering is longitudinally divided by these cross-sectional reductions, when tearing the tearing extension radially outwardly or in the longitudinal direction of the gas pressure cylinder, so that as a result thereof the protective covering then only has to be pulled off the gas pressure cylinder.

Abstract: A method and insulation transport device for transporting building-type rolled insulation or batts of insulation through an opening in a building to an area to be insulated, such as a crawl space, in which the opening to the area to be insulated is of less diameter than that of the roll of insulation or package of batts.

Abstract: A plastic corrugated sheathing hose adapted for electric cable installation and producible in one continuous operation, includes a longitudinal slit along its side. Each edge of the hose adjacent the slit is complementarily configured to form a detent or snap-locking closure releasably engageable in overlapping relationship. After insertion of a cable through the sheathing hose slit, closure of the hose is accomplished by pressing overlapped complementarily configured together. Closure of the hose in this manner results in a substantially gas-tight and waterproof cable enclosure accomplished in one operation with the inlaying of the cable.

Abstract: A method of making a reinforced collapsible hose construction and is provided wherein such hose construction comprises a tubular plastic inner component and a reinforcing tubular fabric cover component wherein the inner component comprises at least one substantially rectangular thermoplastic layer and the cover component comprises at least one substantially rectangular fabric layer with the layers being arranged to comprise the tubular components and being fixed together by bonded portions of the thermoplastic layer to define the hose construction.

Abstract: A tubular lining for lining passages is formed, such liner being constructed from a laminate comprising a resin absorbent layer and an impermeable skin. The laminate is wrapped to tubular form with the skin outermost and the free edges are butted together and are connected in this condition by a sewing operation. A sealing ribbon as applied over the sewing to seal the seam and stitching to prevent the flow of liquid or synthetic resin through the seam when the lining is used.

Abstract: In a plate-shaped insulation member consisting of parallel mineral wool strips positioned side by side with the fiber planes normal to the main surfaces of said members the strips are joined together by connecting means laid down in parallel tracks extending transverse to said strips and having a small depth relative to the thickness of the strips. The connecting means may consist of strings laid down in tracks either in one main surface only for production of flexible insulation mats or in both main surfaces for production of rigid formstable insulation plates. The latter may also be produced by connecting means in the form of relatively thin strips of corrugated wall board, for example, laid down in said tracks in an upstanding position.

Abstract: A wrap-around device for enclosing an elongate object comprises a cover having two opposed edge portions and that can be interlocked to retain them together. At least one of the edge portions, and preferably both the edge portions, are provided with a protuberance, which extend along the edge portions and engage the opposed edge portion that may be caused if the edge portions are subjected to a tensile force tending to separate them, for example as may be caused if the device and enclosed object is bent.Preferably at least one of the edge portions is provided with a layer of adhesive to prevent moisture ingress between the edge portions.

Abstract: Disclosed is a closure member for insulating, sealing, waterproofing and otherwise protecting an object from the elements. The closure member is of integral, one-piece construction, is of heat-shrinkable material, has a main body for enveloping the object and easily hand-assembled hooks, formed from material-sandwiched, angled and articulated inserts, interfoldable to define a joint and form thereby an enveloping tubular member. The hooks have on their ends small projections defining detents that are mechanically imbeddable for positive joint closure and seal, while affording a wide range of alignment in the interfolded and sandwiched assembly of the hook.

Abstract: An article for forming a tubular protective cover around telephone and electrical cables comprising a generally flat band of material having opposite upper and lower surfaces and end edges, one of the surfaces being planar, the other surface being provided with a plurality of spaced grooves therein. Each groove is of V-shape and has inclined sides which intersect to form an apex proximate the planar surface to form a hinge where the band can be folded to enable the band to surround a cable. The other surface of the band is relatively flat between the grooves to define a continuous planar surface. At the grooves, the band is formed with elevations projecting beyond the plane of the surface in continuation of the sides of the grooves such that with the band folded at the hinges, the elevations at the sides of the grooves approach one another to provide a stiffening effect for the folded band around the cable.

Abstract: A longitudinally divided cable sleeve which is composed of a shrinkable sleeve member of a shrinkable material having a bead on each edge for engagement with a sealing bar to form a sealing system characterized by each of the beads having a non-shrinkable longitudinally extending strengthening element embedded therein and the sealing bar having a pair of side elements interconnected by a central web, said side elements projecting from the central web to form an undercut groove on each side of said web so that the sealing bar is a cross-sectional configuration of a pair of C-shaped profiles facing in opposite directions and each groove receives one bead of the sleeve member to close said cable sleeve. The sealing bar is preferably made of a material having a good heat conduction property to improve the heating of the inner sealing zones during a shrinking process. If desired, a coating of a fusible adhesive can be applied in the area of the sealing zones to increase the sealing effect.

Abstract: A protective cover for use particularly in a sealed splice of electrical cables comprises a generally cylindrical, elongate tubular member having a wall the ends of which are in overlapping relation over a circomferential portion of the tubular member. A groove extends radially into the inner circumferential surface of the tubular member and axially therealong at least for a portion of the length of the member. It is preferred that the tubular member be formed from a pre-contoured sheet of rubber-like material, the inner contoured sheet surfaces being coated with a sealing material.

Abstract: The specification discloses an arrangement for hard wiring movable room divider panels, comprising enclosed raceways adapted to mount electrical appliances therein, and being connected with and extending generally between the legs of the panels. A panel-to-panel wiring connector extends between and is attached to the ends of adjacent raceways, and includes a protective outer shell with a longitudinally extending interior cavity therethrough in which electrical wires are received. The wiring connector has a split body for longitudinally opening the outer shell, laying the wires in the interior cavity, and closing the outer shell about the wires, and includes opposed open ends which communicate with the adjacent raceways, whereby the raceways and channels form an uninterrupted shield for the wires, so as to economically hard wire the panels by hand without requiring a conventional conduit type of installation.