Core within tube

The method of joining aluminum tubing wherein a heat curable adhesive in tape form is helically wound on the end portion of one tube prior to its being telescoped with the heated end of a second tube.

Plastic elements, such as conduit, and method and apparatus for joinder of same characterized by respective regions, or surfaces, of hot-to-cold plastic adjacent regions of hot-to-hot plastic for forming a substantially immediate physical fixation of the hot-to-cold regions and followed by a more nearly...     

A method of lining a passageway with a hard, rigid pipe of thermosetting resin, wherein a tubular fibrous felt is immersed in the resin to form a carrier for the resin. The immersed felt and resin have an inflatable tube therein and this tube is inflated to shape the resin to the passageway surface....     

The opposite ends of at least one pair of tubular members, for instance steel tubes, are closed by inserts which have radial portions overlying end faces about the open ends of the tubular members. The tubular members are then axially aligned with each other while maintaining the radial portions of the...     

The disclosure relates to method and apparatus for producing a base article, such as a container, with a shrunken, surface covering of plastic thereon. While conveyed in axial registry with each other, a sleeve form of shrinkable plastic is telescopically assembled onto the article by a cam-operated...     

A method for forming lengths of adhesive tape into tubes including providing a mandrel having an axis and a multiplicity of radially outwardly projecting resilient bristles having tips defining at least the major portion of a periphery around the axis in the shape of a tube to be formed. The tape is...     

A method of bonding thermoplastic resins to metals. A cylindrical portion of a metal is coated with an uncured adhesive. A quantity of a thermoplastic resin is molded onto the adhesive substantially uniformly about that portion of the metal having adhesive thereon, and a restraining ring is placed about...     

A method of holding the bared end of a plastic sheathed optical fiber accurately on axis of a metal ferrule through which it is threaded while a potting compound is cured which cements the assembly. The method uses a silicone rubber jig cast from an accurately machined mold. The resilience of the jig...     

Compositions comprising certain acrylate-containing polyorganosiloxanes and a hydroperoxy polymerization initiator are anaerobically curing sealant compositions. For example, a composition comprising a polyorganosiloxane consisting essentially of 42 mole percent trimethylsiloxane units and 58 mole percent...     

An improved heat fused pipe assembly joint is provided using an internally positioned fitting having an annular insert portion substantially the same diameter as the internal diameter of the pipe section to be joined and a shoulder portion having a larger diameter. The pipe section is joined to the fitting...     

A method wherein a tubular liner is applied to the surface of a passageway such as a tunnel or pipeline bore. The liner may be in the form of a flattened tube of absorbent material such as felt or foam such is impregnated with synthetic resin. The liner is anchored at one end of the passageway and is...     

A process is provided for applying refractory wear-resistant interlocking tile to the inner surface of a circular to elliptical tubular casing and securing them in position by exertion of centripetal force from intumescence of an insulative sheet material between the tile and the casing exerting substantially...     

A welding method for joining self-supporting structures made of thermoplastics by assembling said structures to form an area of mutual overlap, generating heat in said area to produce a welding zone having an elevated temperature and containing said thermoplastics in an at least plastic state for mutual...     

A taper pipe joint formed by telescoping a pin inside a bell, wherein the bell has an outer cylindrical section and an inner conical section tapering inwardly, and the pin also has a conical section tapering inwardly. The taper angle of the pin's conical section is greater than the taper angle of the...     

A method and apparatus for producing an accurately sized elastomeric seal th a flexible outer electromagnetic radiation (EMR) shield.

A method of making an electrical connector, which has a shell, an insert member and a wafer member, said insert member and wafer member stacked in the shell having apertures therein for receiving electrical terminals, the method including assembling the insert member with the wafer member with the apertures...     

A reinforced hose and coupling assembly is disclosed having an outer coupling body sleeve which flares outwardly toward to the fitting end of the coupling, with metal ply reinforcement nonuniformly distributed adjacent the coupling sleeve and being embedded in an anchoring matrix.

An insulation system for use in rocket motors containing solid composite propellants is disclosed. Some composite rocket propellants are based on carboxyl-terminated polybutadiene (CTPB) and others on hydroxyl-terminated polybutadiene (HTPB) binders. An important requirement of such systems is the ability...     

A balloon-type catheter is disclosed having a catheter shank made of a block copolymer having thermoplastic rubber characteristics with a central block of ethylene-butylene copolymer and terminal blocks of polystyrene. The inflatable balloon member, and preferably the distal Y-member, of the catheter...     

A heat sealed or welded pipe connection for thermoplastic pipes comprises a male pipe part which is sealed to the inner surface of a female pipe part, said female pipe part carrying centering abutment projections on its outer surface. The female pipe part may consist of a socket which starting from its...     

A cuff member for a catheter assembly has grooves formed on the wall thereof to receive an adhesive for securing the cuff member to the tube of the catheter assembly.

A method and apparatus for impregnating a tube of absorbent material in which a mass of flowable material to be absorbed is inserted into the tube by a supply conduit, a vacuum is applied to the tube in spaced relation to the inserted material by a suitable source of vacuum, a flattening device is provided...     

Pipe sections of polyester fiberglass, epoxy fiberglass or of other diverse or same materials are adhesively joined together or to reaction vessels by applying to one mating surface an adhesive composition comprising a solution of non-reactive elastomer as for example, butadieneacrylonitrile rubber dissolved...     

The invention permits the lining of a passageway or pipeline with a resilient but robust, semi-rigid plastics pipe. The invention enables the lining of pipelines and passageways of long length by extruding the lining tube on site, deflecting the tube so that it is deflected into smaller diametral size,...     

Disclosed is a catheter and a method of manufacturing such a catheter. The method includes either the steps of molding the catheter tip onto the shaft, or molding a balloon onto the shaft, or both.

An assembly of a universal joint member and a shaft formed of fibre reinforced synthetic resin material is made by establishing an adhesive connection between the shaft and a connecting member, and subsequently welding the connecting member to the universal joint member. The connecting member may be...     

A method and apparatus for lining a pipe, e.g. an aluminium pipe, with a thermoplastic material, in which either the inner surface of the pipe or the external surface of a tube of thermoplastic material is coated with an adhesive layer, the tube is inserted in the pipe, a purely radial force is applied...     

A method for installing fragile, high temperature insulation batting in an elongated cavity or in a resilient wire sleeve to form a resilient seal. The batting is preformed to rough dimensions and wrapped in a plastic film, the film being of a material which is fugitive at a high temperature. The film...     

A strip is folded longitudinally around a tube to, thereby, establish an assembly of an inner and a concentric outer tube; individual slotted foam strips are placed in transverse orientation onto the strip just prior to folding; they will become spacers with V-shaped notches. Just prior to closing the...     

In an axially extending rod-shaped connection element a plastics material rt having at least one layer of unidirectional fibers is connected to a transition element in an overlapping arrangement. Each of the plastic material part and transition element has an axially extending tapered surface joined...     

A container and method of adhesive bonding of two telescopic container halves wherein each container half has a cylindrical body, the inner container portion being circumferentially loaded to temporarily reduce its diameter and being forced in centered relation to the outer portion into a bead of adhesive...     

A catheter with an inflation cuff, is produced by a method in which an inflation cuff of an elastomeric material which is not thermoplastic is placed on a catheter shaft of thermoplastic material at a desired position. Pressure is directed inwardly around the entire periphery of at least each end of...     

A cannula/catheter is provided which is suitable for long term or semi-permanent through-the-skin function while permitting tissue ingrowth which promotes healing and seals out sources of infection. The catheter is provided with a sheath formed of an elastomeric coating which is glow discharge treated,...     

A container and method of adhesive bonding of two telescopic container halves wherein each container half has a cylindrical body, the inner container portion being circumferentially loaded to temporarily reduce its diameter and being forced in centered relation to the outer portion into a bead of adhesive...     

A method of making fabric-lined elastomeric articles of wear is disclosed which includes forming an elastomeric article on a form or mold, applying a pressure-sensitive adhesive to the article while on the form, drying the adhesive, applying a lubricant over the adhesive, positioning a preformed liner...     

A device for obtaining a culture sample from a particular location in a body passage while avoiding contamination of the sample by materials located elsewhere in the body passage includes a stiff flexible tube. A sleeve of pliant waterproof material surrounds the tube and the distal end of the sleeve...     

Adhesive composition based on acrylate monomers and a peroxide, together with selected halogenated aliphatic acids, which is storage stable and can be used as an anaerobic adhesive composition and a method of bonding by use of that adhesive to quickly form adhesive bonds to steel, copper, zinc and brass...     

A method for the fabrication of high density smooth walled composite members laminated of resin impregnated fibers, and characterized by hydraulic pressure applied by a smooth surfaced core member comprised of noninterconnected cells subjected to heat and expanded thereby in opposition to a complementary...     

The apparatus and method for making a resin caulker 10 begins with continuous extrusion of a resin cylinder 15. A multimandrel indexing machine 20 has a receiving station 22 positioned to align an empty mandrel 21 with extruded cylinder 15 so a leading end 18 of extruded cylinder 15 advances onto empty...     

The present invention presents a novel method for injection molding a header to the open-ended tubes of an elastomeric solar collector. Special mold pieces and mandrels are required to carry out the invention.

A water cooled welding gun (10) includes an elongated current carrying inner tube (40) having a central opening (42) through which a consumable electrode and shielding gas may pass. The inner tube is provided with cooling passageways (50). A gas shielding nozzle (35) is connected to a gun tube cover...     

A flowable anaerobic sealant composition adapted to be applied to a threaded surface which is characterized by being stable prior to curing is provided which composition comprises a polymerizable acrylate ester monomer, a hydroperoxide polymerization catalyst for said acrylate ester monomer in an amount...     

A valve, such as a butterfly valve having an offset closure vane and stub shafts for operating the vane in the flow passage of the body, has all exposed and/or potentially vulnerable metal surfaces encapsulated in a corrosion-resistant polymeric plastic coating. Providing bearing support for the vane...     

An apparatus and method for placing component parts on the ends of flexible tubing which is employed in an I.V. administration set. Flexible tubing is continuously supplied in a rectilinear manner and cut into predetermined lengths. These lengths have the ends thereof moved in a substantially transverse...     

A method for manufacturing a bubble tube for a bubble level, comprising the following stages: completely filling a barrel-shaped machined cavity (9) in the tube with suitable liquid such that the entire hollow part of the bubble tube is full; positioning a plug (14), comprising a cavity of which the...     

A light-weight, high-strength composite pin for use in pin-jointed reciprocating mechanisms and a method of preparation thereof is provided. Basically, the pin has a tubular metal sleeve and an interior fiber-reinforced resin core. At least 50% of the fibers in the core are continuous fibers which are...     

Apparatus and method for assembling a pair of thin-walled metal container counterparts which are brought together axially, are rounded and one inserted into the other substantially without deformation of either of the pair of counterparts so that the inner part is allowed to expand, after insertion,...     

The invention provides that a flexible liner is everted into a passageway to line same using liquid under pressure. The liner is fed through an enclosure before it everts and eversion is achieved by pressurization of the liquid in the enclosure. The feed of the liner through the enclosure is preferably...     

Two members 2, each located in a heat sealable sheath 4, are joined together to form a right-angle joint. Two plates 8 of heat sealable material are attached to the associated ends 6 of the members 2 by means of dowels 10 inserted into holes 12 in the member ends. The outer surface 14 of each plate 8...     

An elastomeric bore seal, and a method of making and installing it. The seal is a fluid-impervious, thin-walled (0.025 inch), open-ended, cylinder-like member which is made of an expansible material that can withstand a wide range of temperatures (-65.degree. F. to +400.degree. F.) and that is to be...     

The invention is a method and device for providing a protective coating for the inside of pipes, said method utilizing a device which is remotely actuated from outside said pipes. Specifically, the device comprises a memory metal delivery means, a corrosion resistant liner means, and a bonding means,...     

A method and apparatus for the continuous application of base cups to rounded bottom bottles including continuous feed of bottle and base cups and continuous removal of completed bottles. Further, a novel system is shown for applying glue or adhesive to the bottoms of the bottles for application of the...     

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...     

Methods and apparatus are disclosed for the bonding together of two similarly shaped articles of similar thermoplastic material utilizing oscillatory motion between the two articles to generate frictional heat therein sufficient to form an hermetic seal therebetween.

A spin welding system, and more particularly a gripping and aligning assembly, is disclosed for the fusing together of the two telescoped halves of a rigid gelatin capsule, which assembly utilizes a flexible diaphragm activated by an air pressure/vacuum source.

A method is disclosed for sealing edible capsules comprised of telescopically engaged tubular capsule halves that define a junction seam between them. The method comprises adhesively applying against at least a portion of the seam a frangible, edible label adapted to cover the seam at the point of intersection...     

A method of making leak-tight tube joints, in a non-brazed tubular heat exchanger or the like, including the steps of expanding tube ends out into mechanical contact with a header plate in which they are received, and, in conjunction with this step, introducing a sealant into tube joints. According to...     

A method is set forth for making polarizing glasses having high dichroic ratios by drawing relatively small silver-containing particles under relatively high stress and elongating such particles during the drawing process without rupturing the glass draw by coating the polarizing glass with a substantially...     

A joint configuration for joining two articles of thermoplastic material by thermal bonding using an electrical heating element, wherein a female fitting having a portion with an enlarged diameter receives the end of an inserted pipe on two raised portions constituting lands on the inner diameter of...     

A method of assembling a cardboard reel with a reinforcing plastic axis, comprising the steps of: securing a first plastic flange to the end of a hollow plastic axis by spinwelding; passing the free end of the axis through cardboard end plates and a hollow core, that form a reel; and spin welding a second...     

Insulated pipes are generally bared of insulation at their ends in order to make joints, for example welds, between the pipes. A reinsulating method and assembly is provided for the bared joints, wherein a support comprising a coiled member, for example a helical coil, is positioned around the pipe,...     

An insulating member formed from a suitable hydrocarbon such as polyether ether ketone may be molded into any desired shape at a temperature of approximately 700.degree. F. and a suitable pressure of approximately 10,000-12,000 psi. An epoxy insulating material hermetically seals the insulating member...     

A capsule-sealing apparatus for use in conjunction with capsule-filling equipment is disclosed which seals a two-piece ingestable capsule. The sealing apparatus includes a chamber having nozzles for dispensing the contents of the chamber, the chamber being supplied with hot, moist air of controlled consistency,...     

Methods and apparatus for bonding an overlapping portion of the outer cap (7,7') and inner body (6, 6') of a closed cylindrical capsule (5). A flexible tubular coupling (13,14,20) positioned around the circumference of the capsule (5) is compressed to exert an inward radial force (23) on the capsule...     

A packaging tube is provided which is substantially gas-tight and has low absorptivity, consisting of a tube of multilayer composite foil with a metallic barrier layer, a prefabricated plastic head piece having a discharge opening and an external thread, and a connecting body which consists of a composite...     

A structural connection between a tubular thermosetting plastics member and a thermoplastics end cap is described. An end of the tubular member is inserted into an annular, axially extending gap in the thermoplastics end cap. The inner and outer wall surfaces of the gap are threaded. Adhesive fills the...     

The invention provides that a tubular lining, suitable comprising an inner felt layer soaked in curable synthetic resin, and an outer impermeable layer, so everted into a pipeline or passageway by means of a gaseous fluid medium which holds the lining against the passageway surface, a pull tape or card...     

The present invention provides that in the lining of a pipeline or passageway using a flexible lining comprising a resin absorbent felt, the felt is impregnated with a light curing resin, and light radiation is used for effecting the resin cure. The resin and felt are selected so as to be of a similar...     

A stator for rotating electric machine includes a stator body having a stator core and a stator coil, a pair of stator clampers of a ring form which hold the stator core by clamping the same with their inner side surfaces from both sides of the stator core, a pair of stator supporting members of a ring...     

The invention concerns a printing sleeve made from a cylindrical supporting surface 4 upon which a knitted fabric 2" is applied as a gas-permeable means, providing a sheet of a thermoplastic elastomeric compositions thereupon, and applying a pressure difference and heat so as to press the sheet upon...     

A method of lining a pipeline or passageway with a flexible tubular liner. The liner is caused to evert in the pipeline by a fluid under pressure, and a former is used to smooth out the everting face of the liner and evenly apply resin over the everting face.

In a tube coupling of the kind comprising a body member with a bore having an axially tapered portion, a collet having arms extending into said portion of the bore, the tapered portion being such that axially outward movement of the collet arms engaging the tapered portion causes the collet arms to be...     

A method for joining insulated conduits is disclosed, in which the bared ends of the medium-carrying pipes are first interconnected in a per se known manner and a union piece is thereafter placed around the resulting joint, such that the union piece has an overlap on the outer side of the conduits to...     

The invention disclosed teaches an arrow straightening machine which includes a nock or head alignment bearing attachment which allows for correction of any eccentricity or misaligmnent between the nock or head and the arrow shaft. The method discloses adhesively bonding the nock or head to the arrow...     

The disclosure relates to a quick release tube couplings in which a collet with resilient arms is arranged to co-operate with a tapering cam surface in a member surrounding the collet to force the arms to grip a tube within the collet. The member is formed from two, male and female parts each having...     

An improved jewelry mounting construction for use in adapting pierced-ear earrings into earrings capable of being clamped on unpierced ears. Also disclosed is a construction for adapting pierced-ear earrings into stickpins. The improved construction comprises a clamping mechanism for securing a medium...     

Disclosed is a method and resulting package which provide an optical fiber seal. One or more fibers are fed through a housing utilizing an apertured insert with a fiber located in each aperture. The housing preferably includes adjacent openings having unequal diameters. A sealing material, such as epoxy...     

A coupled hose assembly of the type including a coupling attached to a polymeric hose by pinching part of a hose end portion. A pliable adhesive is disposed in part of the coupling to define a substantially leakproof seal between the hose and coupling at an environment temperature falling at least within...     

A blast pipe (2) primarily intended for introducing gas, such as oxygen gas, into molten metal in metallurgical processes, such as steel manufacturing processes, including a pipe element (1) made preferably of steel and coated at least externally with at least one protective layer (3). The blast pipe...     

A system for heat-sealing thermoplastic conduits involves a thermoplastic sleeve surrounding an electrically conductive heating wire arranged in a coil. A bridging conductor is located adjacent the heating element, but is separated from it by an insulation layer of predetermined thickness. When the sleeve...     

A method of bonding plastic pipes, which comprises heat-melting the outer circumferential surface of an end portion of a plastic pipe and the inner circumferential surface of a sockt portion of a plastic joint, and inserting the end portion of the plastic pipe into the socket portion of the plastic joint...     

A method for sealing a pipe-joint comprises injecting from a point or points 5 externally of the pipe an anaerobically curable monomer into the joint gap in such quantity that the monomer forms a contiguous band 9 within the joint gap and allowing the monomer to cure within the joint gap.

An improved method for fabricating electrode structures, particularly flame-front sensors, spark plugs and the like, wherein the center electrode, the insulating housing therefor, and an outer housing are dimensioned such that a small clearance space is provided between each of the parts; a fluid glue...     

A method for sealing an assembled gelatine capsule of the type used to contain and dispense medication is disclosed. An assembled capsule the axis of which is oriented perpendicular to the axis of a thin elongated bar is moved along and in contact with a thin edge of the elongated bar. The surface of...     

The invention provides for the light curing of a synthetic resin which is light curable, and is arranged as a layer upon the surface of a pipeline or passageway. The curing lamps are enabled to be pulled into the pipeline or passageway by virtue of inserting a tubular member into the passageway which...     

An assembly apparatus is disclosed for assembling a first element having opposed end surfaces within a second element so as to leave the end surfaces exposed subsequent to the application of an adhesive material. The apparatus includes a pair of elastomeric seals, each seal having an axially inner surface...     

An injection set for use with an external infusion source of fluid such as insulin is disclosed which injection set is constructed using multiwall tubing. The interior of the multiwall tubing is made of a material which is completely insulin compatible, while the exterior of the multiwall tubing is made...     

A microwave integrated circuit is comprised of a ferrite plug in an alumina substrate, fused therein by a glass composition thermally compatible with both plug and substrate, thereby filling any voids at the interface with dielectic material to minimize circuit losses. The method of assembly permits...     

Apparatus for spin-welding comprises a spin welding machine having a spin welding head, a ram assembly, and a feed mechanism; the ram assembly is driven from a shaft and the feed mechanism comprises a rotating turret mounted on a shaft which is driven from the shaft via a Geneva mechanism. The spin welding...     

An anchor for secure reception of a fastener such as a screw shank can be frictionally welded, by high-speed rotation of the anchor, to the structure upon which the fastener is mounted. The anchor is molded from frictionally meltable material, for example a typical engineering thermoplastic such as ABS...     

Heating apparatus particularly useful for installing heat expandable plastic pipe liner comprising a radiant heater and air circulation means for the uniform distribution of heat about the circumference of the plastic pipe.

An electric motor armature is repaired, to correct a loose armature or separated armature laminations, by drilling holes through the armature at various locations around the armature and along its length. The holes extend to the armature shaft. Adhesive is injected into the holes, under pressure, and...     

A method of lining pipes by providing a predetermined distance of pipeline with a first and second end; forming at least one closure point in the pipeline by cutting at least one section of the pipeline forming at least a first and second section of the pipeline and at least one cutout section of pipeline;...     

A method of lining a passageway comprising pulling a first flexible lining pipe sized to the passageway to be lined into the passageway, the first lining tube comprising at least one resin absorbent layer impregnated with curable synthetic resin, and by the eversion into the first lining tube of a second...     

A rolling mill roll assembly comprising an inner cylindrical mandrel and an outer cylindrical sleeve bonded thereto with glue containing grit particles. Wire is spirally wound around the outside of the mandrel and secured thereto with the glue. The sleeve has an inner diameter substantially equal to...     

The present invention relates to a method for sealing capsules to render them both tamper-proof and tamper-evident. The method comprises locating a quantity of an adhesion-promoting fluid between the adjacent surfaces of the overlapping capsule wall, and thereafter applying dielectric heat energy in...     

A pre-cast dome-like shell is loaded with a predetermined amount of curable sealant. The sealant and dome are similar in composition. The dome is pressed over the exposed end of a fastener. An elastic portion of the shell can expand, thereby increasing the internal volume of the shell to accommodate...     

An assembly for the coupling of a multi-duct conduit system for sealing the outer and inner ducts of adjacent conduit sections in end to end relationship. There is provided a primary coupling housing which includes preferably a premolded body portion which is insertible into the outer most housing of...     

The tensile strength, and particularly the ability to resist changes in cross-sectional configuration, of a rigidifiable-in-situ passageway lining material comprising a fibrous body with a settable resin forming a part thereof, the fibers in that fibrous body having their lengths generally extending...     

A bonding system for assembling internal combustion engine crankshaft vibration dampers having an annular inertia ring mounted upon a hub by an elastomeric ring interposed between the inertia ring and hub. After assembly of the components, a thermosetting adhesive located between the elastomeric ring...