With Joints Patents (Class 174/84R)
-
Patent number: 4570032Abstract: A closure for a splice region in cable and method of making it by providing a plastic moulding around the cable jacket. A fluid-tight seal between the moulding and the jacket has inner and outer layers of different materials which eliminate the need to fuse the moulding to the jacket to provide a seal. The inner layer is a compressibly deformable material surrounding and contacting the jacket. The outer layer surrounds the inner layer and is in a circumferentially resiliently stretched condition to compress the deformable material into intimate contact with the jacket and form a first seal region. The deformable layer has an annular portion engaging and fused to the plastic moulding to form a second seal region. The seat is suitable for pressurized and non-pressurized cable.Type: GrantFiled: September 7, 1984Date of Patent: February 11, 1986Assignee: Northern Telecom LimitedInventors: Leonard J. Charlebois, Kevin H. Dick
-
Patent number: 4553809Abstract: An electrical connector comprising at least one metallic tubular sleeve having an open end for receiving an electrical conductor and a closed end, the peripheral inner wall of the sleeve being pretinned; a slug of solder, having a flux associated therewith, hermetically sealed within the sleeve proximate the closed end; a piston positioned between the closed end and the slug and capable of axial motion within the sleeve; means which on application of sufficient heat to raise the temperature of the connector to a first temperature, T.sub.1, which is the activation temperature of the flux, breaks the hermetic seal, permits the flux and gaseous products thereof to expand and flow toward the conductor; and pressuring means between the piston and the closed end of the sleeve which, on application of sufficient heat to raise the temperature of the connector to a second temperature, T.sub.Type: GrantFiled: September 24, 1984Date of Patent: November 19, 1985Assignee: Raychem CorporationInventor: Neil L. Holt
-
Patent number: 4526295Abstract: The injection cartridge comprises two containers (1, 2) one of which is slidably mounted in the other. An actuating rod (8) has a smooth leading portion (9) and a rear threaded portion (10) separated by a threaded intermediate portion (11). The container (1) has in its end (12) a threaded opening (13) receiving the threaded intermediate portion (11). The nozzle (5) of the container (2) has a thread (15) for receiving the thread (14). The threaded portion (10) of the rod (8) has a nut for abutting against the first container to push it towards the other container. The cartridge may be used for injecting a semi-pasty product into a protective sleeve for a joint in a telephone cable.Type: GrantFiled: August 9, 1983Date of Patent: July 2, 1985Assignee: Etablissements Morelateliers Electromecanique De FavieresInventors: Andre Morel, Jacques Morel
-
Patent number: 4515669Abstract: A tubular anode such as tubular cast iron, magnetite, graphite, carbon or steel may be provided with an easily made internal or center connection having assured uniform resistance characteristics by the employment of at least two diametrically opposed wedge blocks, such blocks having parallel crowned and serrated contact surfaces and a wedge surface interface, such interface including a tongue and slot connection between the blocks, one or both blocks having oppositely extending tubular crimpable lead connections. The blocks may be made of malleable material so that when assembled and placed in the proper location inside the anode, one may be held while the other is driven axially, or both may be driven in axially opposite directions easily to form an electrical connection of assured electrical resistivity.Type: GrantFiled: October 6, 1983Date of Patent: May 7, 1985Assignee: Harco CorporationInventors: James R. Dimond, James B. Bushman
-
Patent number: 4511611Abstract: The present invention relates to improved liner constructions, and accordingly provides a cable sleeve liner capable in use of being wrapped around a cable splice and preferably having sufficient rigidity to provide an inner support for a heat-recoverable sleeve to be shrunk thereover, the liner comprising a laminate having at least one layer of fibrous sheet material and a metal layer which is substantially impermeable to moisture vapor and has one of its major surfaces facing away from all fibrous sheet layers which may be present. Preferably the fibrous layer(s) is or are arranged between the metal layer and a microperforated first layer of flexible polymeric film material which is permeable to gases or vapors generated within the laminate during recovery of the sleeve.Type: GrantFiled: December 20, 1983Date of Patent: April 16, 1985Assignee: N.V. Raychem S.A.Inventor: Marc F. L. Moisson
-
Patent number: 4508409Abstract: The present invention relates to a device for splicing two insulated electrical wires or cables. More particularly, the device includes two or more elongated members cooperating to form a cylindrical, cable receiving body with tapered outer surfaces adapted to slidingly receive collars which compress the elongated members against the cables. Insulation piercing prongs are driven into the cable to contact the underlying conductors to establish electrical continuity between the two cables.Type: GrantFiled: June 28, 1983Date of Patent: April 2, 1985Assignee: AMP IncorporatedInventors: Hitesh Cherry, Walter M. Werner
-
Patent number: 4504699Abstract: The device for enclosing at least part of an elongation object, preferably a connection between electrical conductors, comprising a hollow dimensionally recoverable article having an aperture that communicates between the interior and the exterior of the article, and a quantity of material which seals an aperture. The material is self sealing so that it will allow penetration of a test probe through the material and will continue to seal the article after removal of the probe. Advantageously the article contains an arrangement for connecting electrical conductors, for example a solder insert or crimping connector.Type: GrantFiled: February 3, 1983Date of Patent: March 12, 1985Assignee: Raychem Pontoise S.A.Inventors: Roberto Dones, David G. Street
-
Patent number: 4503105Abstract: A hollow tubular core for supporting an elastic tubular cover member in a highly radially stretched condition comprises a cylindrical plastic tube having a plurality of circumferentially spaced, axially extending lugs on the inner wall of the tube and a continuous helical cut in the wall of the tube from the exterior surface thereof severing the tube into a continuous narrow strip with only the lugs connected axially along the length of the tube.Type: GrantFiled: January 20, 1984Date of Patent: March 5, 1985Assignee: Minnesota Mining and Manufacturing CompanyInventor: Shigeo Tomioka
-
Patent number: 4501927Abstract: Apparatus for sealing and protecting the spliced junction of butt-spliced cables including a protective sleeve and two toroidal sealing rings and the method of assembling the sleeve and rings to the spliced cable which results in the sleeve being centered over the splice and the sealing rings spaced substantially midway between the splice and the ends of the protective sleeve.Type: GrantFiled: August 31, 1983Date of Patent: February 26, 1985Assignee: Minnesota Mining and Manufacturing CompanyInventor: James A. Sievert
-
Patent number: 4496795Abstract: A splice assembly and method for splicing electrical cables comprises a sealing layer, a barrier and an open mesh sleeve. The sealing layer is formed of uncured insulation material, surrounds the connector coupling exposed adjacent ends of the cable conductors, and engages the insulation layers of the cables. The barrier surrounds the sealing layer for inhibiting flow of the sealing layer upon heating. The open mesh sleeve surrounds the barrier and has its opposite axial ends rigidly secured to the cables. During curing of the sealing layer, the open mesh sleeve applies substantially uniform and constant pressure in a radially inward direction on the sealing layer to avoid air voids and increase the strength of the splice assembly.Type: GrantFiled: May 16, 1984Date of Patent: January 29, 1985Assignee: Harvey Hubbell IncorporatedInventor: Robert P. Konnik
-
Patent number: 4485269Abstract: A joint between a mass-impregnated paper insulated cable and a plastic insulated cable is sealed to contain the mass impregnating, oil material by applying a heat-recoverable oil resistant tubing over the exposed paper insulation so as to leave a portion thereof uncovered adjacent the exposed conductor of the cable, applying an oil resistant mastic to said uncovered portion of the insulation and over an adjacent end of said tubing, and applying a further heat-recoverable tubing over the mastic and an adjacent portion of the oil resistant tubing.Type: GrantFiled: April 2, 1982Date of Patent: November 27, 1984Assignee: Raychem GmbHInventor: Norman R. Steinberg
-
Patent number: 4484024Abstract: An electrically insulating, overcoated bulky sleeve is disclosed comprising a tubular sleeve prepared from bulky (i.e. low density, high surface area) continuous filament yarns and an overcoating. When an electrical conductor is positioned therewithin, the large surface area of the bulky yarns of the interior of the sleeve provides an intimate fit for an expanded range of conductor diameters. For applications where a void-free impregnation of the sleeve interior between the overcoating and the conductor is desired, the large interior surface area of these sleeves can promote retention of the impregnation composition. The overcoated sleeve can be expandable, deforming to allow pull-back and return or fold-over, and/or conforming to accept transitions in conductor diameter. The overcoated bulky sleeve can be employed in a method for electrically insulating a conductor, which method may further include an interstitial impregnation step.Type: GrantFiled: February 15, 1984Date of Patent: November 20, 1984Assignee: Raychem CorporationInventor: William H. Bentley, Jr.
-
Patent number: 4484022Abstract: A sleeve, terminal body, plug body, or the like receives tubular or ring-shaped, normally solid but thermoplastic filler elements, being traversed by a cable or conductor, particularly a portion from which insulation has been stripped. A plunger-like element receives also the cable or conductor and is inserted in one end of the sleeve, or body, the other end being closed by another plunger or body structure. Upon heating, the filler element melts and the plunger or plungers are forced further in to cause melted filler material to fill all voids; the deformed material resolidifies and seals and bonds all parts together.Type: GrantFiled: November 2, 1981Date of Patent: November 20, 1984Assignee: HEW-Kabel, Heinz Eilentropp KGInventor: Heinz Eilentropp
-
Patent number: 4477376Abstract: A method and composition for effecting splices of high voltage cable sections for use with a mold placed around the cable sections. The composition comprises a liquid polyolefin, a finely divided solid polyolefin and a chain extension agent capable of reacting to form addition polymer linkages with the liquid polyolefin.Type: GrantFiled: November 18, 1981Date of Patent: October 16, 1984Inventor: Marvin H. Gold
-
Patent number: 4451305Abstract: An apparatus and method for producing an insulated connection between a pair of insulated electrical cables by means of curing uncured insulation wrapped around joined conductors in the cables. The apparatus comprises a multiple part mold assembly having a cylindrical cavity, mechanisms for heating and cooling the mold parts and an assembly for creating a radially inwardly directed, substantially constant pressure on the curing insulation while allowing radial expansion and contraction of the insulation and mold parts during heating and cooling. The pressure-creating assembly comprises a pair of rectilinear power devices and a pair of cables wrapped around the mold parts and tensioned by the power devices, this assembly applying a radially inwardly directed, equal and substantially constant force to the mold parts. Preferably, the mold assembly comprises three equal parts, each defining one-third of a cylindrical body and each having rollers on the outer surface for receiving the cables therein.Type: GrantFiled: August 2, 1982Date of Patent: May 29, 1984Assignee: Harvey Hubbell IncorporatedInventors: David H. Neuroth, Robert F. Smith, Jr.
-
Patent number: 4450318Abstract: An improved method of joining insulated conductors and providing a water-tight seal. The area about the joined conductors is filled with a putty-like insulation filler material and an O-ring placed on the conductor insulation, some distance from the joint. The joint, including the O-ring, is overtaped with resin-rich insulation tape and the tape is surrounded by a shrinkable polyester film. Heat is applied to partially cure the insulation tape, and to cause the polyester film to contract tightly about the joint.Type: GrantFiled: September 29, 1981Date of Patent: May 22, 1984Assignee: Siemens-Allis, Inc.Inventors: Virgil R. Scardina, deceased, by Annette Scardina, executrix
-
Patent number: 4439255Abstract: A heat-resistant insulated electric wire and cable which comprises an electric conduction; the first coating layer thereon consists of a mixture of a binder and a finely ground and unmelted inorganic substance; and the second organic insulating coating layer formed on the first coating layer. Said heat-resistant insulated electric wire can advantageously be used for a coil of a magnet or a motor.Type: GrantFiled: March 9, 1982Date of Patent: March 27, 1984Assignee: Nippondenso Co., Ltd.Inventors: Takeshi Imai, Naohiro Kako
-
Patent number: 4431469Abstract: An electrical connection insulator comprising an outer tube formed from a mono-layered film of a non-adhesive, heat stable, dielectric, synthetic, polymeric resin enclosing an inner tube formed from a mono-layered film of a non-adhesive, heat shrinkable, dielectric, synthetic, polymeric resin. The outer surface of the inner tube is attached to a selected minor portion of the inner surface of the outer tube by an adhesive strip spirally wound about the body of the inner tube. An electrical connection is covered with the insulator by disposing it within the inner tube, heat-shrinking the inner tube about the connection, and then sealing the outer tube about the heat-shrunk inner tube under heat and pressure.Type: GrantFiled: September 28, 1982Date of Patent: February 14, 1984Assignee: Niemand Bros.Inventor: Rocco Falcomato
-
Patent number: 4428790Abstract: A transversely pleated, longitudinally heat-shrinkable tape is made from a heat-shrinkable polymeric film. One side of the tape may be adhesive-coated, and the other side may be coated with a thermochromic paint. The tape is wrapped around a substrate, and is particularly adapted, by reason of the pleats, to be wrapped around a substrate of non-uniform cross-section, e.g. a splice in a telephone cable. On heating the tape to its recovery temperature, the pleats disappear and the tape shrinks longitudinally to tightly cover the substrate. The tape may additionally comprise integral heating means.Type: GrantFiled: June 5, 1981Date of Patent: January 31, 1984Assignee: Raychem CorporationInventor: Stephen H. Diaz
-
Patent number: 4426413Abstract: A heat-recoverable closure assembly for enclosing e.g. cable splices comprising a heat-recoverable outer sleeve surrounding a body to be enclosed thereby, a support member surrounding the body and within the sleeve which support member has slotted end portions arranged to be capable of forming a tapering transition from the support member to the body, and a flexible barrier layer bridging the slots of the slotted portions. The barrier may act to seal the slots against ingress of moisture ior heat, and the barrier layer preferably covers substantially all of one surface of the support. Foamed polymer layers are particularly suitable as heat barriers, and metallic layers carried on a flexible carrier are particularly suitable as moisture barriers. The barrier may be inside or outside the support member, to suit end use requirements. A heat barrier will normally be placed outside the support member when the latter is made of thermoplastic material.Type: GrantFiled: May 7, 1982Date of Patent: January 17, 1984Assignee: Raychem CorporationInventor: Vernon A. Fentress
-
Patent number: 4424411Abstract: A device for forming a mechanical and/or electrical connection between a plurality of elongate objects 1, 2, for example bus bars in electrical switchgear, comprises one or more inserts or shell members 9, 10 that can be positioned about the ends of the objects to form a tubular assembly extending between the objects.One or more memory metal drivers in the form of bands or rings 7, 8 may be provided for retaining the tubular assembly in position and forcing the shell portions against the objects 1, 2 so that a good electrical contact is formed. Preferably an annular protuberance or contact surface 12 is provided on the internal surface of the shell members 9, 10 at each end thereof, and are preferably arranged so as to be partly flattened as the bonds or rings 7, 8 contract, thereby increasing the contact area between the shell members and the objects 1, 2.Type: GrantFiled: December 6, 1979Date of Patent: January 3, 1984Assignee: Raychem LimitedInventor: Robin J. T. Clabburn
-
Patent number: 4413028Abstract: A connector device comprises first and second layers of substantially cross-linkable material, the first layer having inserts in contact therewith, the second layer having been expanded and thereafter formed into working and bonding zones, and the sheets being bonded together at the bonding zones for acceptance of substrates to be connected. The device is so constructed that the working zone center-to-center spacing remains constant on recovery.Type: GrantFiled: January 21, 1982Date of Patent: November 1, 1983Assignee: Raychem CorporationInventor: Stephen H. Diaz
-
Patent number: 4403110Abstract: An assembly including a pair of cable sections having cable ends joined in a splice and an elongated sheath enclosing the cable ends. The elongated sheath defines opposite end openings, each receiving one of the cable sections and having a perimeter substantially conforming to the outer surface thereof. Further defined by the interior of the sheath are both contact surfaces engaging and positioning certain portions of the cable sections' outer surfaces and volumes juxtaposed other portions of those surfaces. A filler material fills the volumes and bonds the sheath to the outer surfaces of the cable sections so as to establish a secure connection therebetween. In a preferred embodiment of the invention, the cable sections comprise electrical conductors jacketed by insulative sleeves that form the outer surfaces and the filler material is electrically insulative.Type: GrantFiled: May 15, 1981Date of Patent: September 6, 1983Assignee: Walter Kidde and Company, Inc.Inventor: Milton J. Morrisette
-
Patent number: 4393286Abstract: A vacuum circuit breaker having a vacuum bulb comprises a coating of a greasy compound of a water repellent material provided on the outer surface of the bulb, and an insulating tube of a water repellent and heat shrinkable material provided on the coating of the greasy compound.Type: GrantFiled: August 15, 1979Date of Patent: July 12, 1983Assignee: Tokyo Shibaura Denki Kabushiki KaishaInventor: Kunihiko Takagi
-
Patent number: 4392898Abstract: A device for enclosing at least part of an elongate object, for example a pipe line, comprises a dimensionally recoverable cover 21 one surface of which is partly or wholely coated with a closure adhesive 22 and covered by a layer of sealant.The cover is preferably in the form of a continuous sheet which may be cut to the appropriate length. The device may be wrapped around the object and the overlying sealant may then be peeled back or peeled away to expose the closure adhesive. The cover is bonded to itself or to the object to be enclosed by means of the exposed closure adhesive, and the device is then recovered by heating.Type: GrantFiled: March 31, 1982Date of Patent: July 12, 1983Assignee: Raychem LimitedInventors: Kenneth B. Pithouse, Christopher J. Swinmurn
-
Patent number: 4391661Abstract: In providing an electrically insulative covering for a cable splice, a sleeve is assembled with an outer rigid shell and is maintained in fluid-sealed relation therewith. A supply of positively pressurized air is placed with the assembled sleeve and outer member, in fluid-sealed relation with the sleeve interior. The sleeve is expanded into contiguous relation with the outer member by the pressurized air. The expanded assembly is placed over the splice and the fluid-sealed relation of sleeve and outer member is interrupted, causing the sleeve to collapse upon the splice and cables, whereupon the outer member is removed and discarded.Type: GrantFiled: February 2, 1981Date of Patent: July 5, 1983Assignee: Thomas & Betts CorporationInventor: Hyman Izraeli
-
Patent number: 4384404Abstract: The invention relates to an article suitable for making an electrical connection between two electrical conductors, for example an earth conductor and the outer conductor of a coaxial cable. The article comprises a first, heat-shrinkable, sleeve (1), a quantity of solder (2) positioned within the sleeve, and a second sleeve (5) an outer surface of which, together with an inner surface of the first sleeve, forms a passage for receiving the earth conductor. Stop means are provided for axial location of the earth conductor. On shrinking of the sleeve and fusing of the solder, an electrical connection can be made between an earth conductor received, in use, in the passage and the outer conductor of a coaxial cable received, in use, in the first sleeve but not in the passage.Type: GrantFiled: March 10, 1980Date of Patent: May 24, 1983Assignee: Raychem CorporationInventor: Didier J. M. M. J. Watine
-
Patent number: 4380686Abstract: The present invention relates to improved liner constructions, and accordingly provides a cable sleeve liner capable in use of being wrapped around a cable splice and preferably having sufficient rigidity to provide an inner support for a heat-recoverable sleeve to be shrunk thereover, the liner comprising a laminate having at least one layer of fibrous sheet material and a metal layer which is substantially impermeable to moisture vapor and has one of its major surfaces facing away from all fibrous sheet layers which may be present. Preferably the fibrous layer(s) is or are arranged between the metal layer and a microperforated first layer of flexible polymeric film material which is permeable to gases or vapors generated within the laminate during recovery of the sleeve.Type: GrantFiled: November 16, 1979Date of Patent: April 19, 1983Assignee: N.V. Raychem S.A.Inventor: Marc F. L. Moisson
-
Patent number: 4379614Abstract: A connecting device for a pair of light waveguide cables with each cable having an optical fiber which is loosely enclosed in a tubular sheath characterized by a joint between the ends of the pair of sheaths of the two cables being bridged by an appropriate tube which is fixed to the ends of the two sheaths and does not require any special housing such as bushing and the like. The tube may be an inner tube, which is inserted into the interiors of the pair of tubular sheaths being connected together or an outer tube which is fixed onto the tubular sheaths. In another embodiment, both an inner and outer tube are utilized. A length adjustment of the optical fiber within the pair of tubular sheaths can be carried out by virtue of a helical arrangement of the optical fiber and the bridging which is provided by the one or more tubes.Type: GrantFiled: August 27, 1980Date of Patent: April 12, 1983Assignee: Siemens AktiengesellschaftInventor: Heinrich Liertz
-
Patent number: 4370517Abstract: A polyolefin insulated electric cable exhibiting the effect of suppressed water tree formation which comprises an electrical insulation layer comprising a polyolefin containing about 0.01 to 13.0% by weight ester groups provided around a conductor.Type: GrantFiled: December 18, 1980Date of Patent: January 25, 1983Assignee: Hitachi Cable LimitedInventors: Kenichiro Soma, Shoji Kuma, Harunori Sakaguchi, Hisanari Shirai, Ryoichi Ito, Toshio Shiina
-
Patent number: 4370518Abstract: A cable splice joining insulated conductor ends wherein the conductors are coated with lead, lead-tin alloy or tin, said splice comprising a metallic sleeve member joining the conductor ends, a first layer of adhesive over the sleeve member and any exposed conductor areas, a layer of foil formed of lead or lead-tin alloy covering the first adhesive layer, a second adhesive layer covering said layer of foil and extending over the exposed insulation; a helically-wrapped insulation layer formed of a thermosetting polymer, an over-lapped layer of fabric surrounding the insulation layer, a helically-wrapped heat-shrinkable type layer surrounding the fabric layer, and a heat-shrinkable sleeve surrounding the splice area, and a method for forming said cable splice, for providing cable splices which resist depressurization failure and corrosion of conductors when employed in high pressure gassy oil wells containing corrosive well fluids.Type: GrantFiled: July 27, 1981Date of Patent: January 25, 1983Assignee: Hughes Tool CompanyInventor: Raymond L. Guzy
-
Patent number: 4354053Abstract: A method and composition for effecting splices of high voltage cable sections for use with a mold placed around the cable sections. The composition comprises a liquid polyolefin, a finely divided solid polyolefin and a chain extension agent capable of reacting to form addition polymer linkages with the liquid polyolefin.Type: GrantFiled: March 10, 1980Date of Patent: October 12, 1982Inventor: Marvin H. Gold
-
Patent number: 4345109Abstract: In a pipe type electric cable installation in which portions of the cable cores extend into a joint casing where the conductors of the cores are conductively joined, the portions of the cores within the casing are enclosed by tubes which are longitudinally curved, preferably, S-shaped, to restrict axial movement of the cores with varying load conditions, one end of each tube being anchored, at least with respect to longitudinal movement, to the casing.Type: GrantFiled: November 3, 1980Date of Patent: August 17, 1982Assignee: Pirelli Cable CorporationInventors: David A. Silver, Attila F. Dima, George W. Seman
-
Patent number: 4341921Abstract: A composite connector for electrical conductors has a heat-shrinkable terminator for each conductor. Each terminator is secured to the connector body, and a guide and stop for each conductor are formed within each terminator. The method of manufacture involves the shrinkage of each terminator over the connector body and a forming mandrel.Type: GrantFiled: March 27, 1980Date of Patent: July 27, 1982Assignee: Raychem CorporationInventor: Damon G. Simpson
-
Patent number: 4326096Abstract: An electrical connector for use in a high-voltage circuit is provided. The connector includes a clip which is adapted to resiliently engage and make electrical contact with a terminal fixedly mounted on a surface; an electrical lead connected to the clip and extending therefrom; and a cover piece of insulative material accommodating said clip and the portion of the lead connected thereto. The cover piece has a section overlying a portion of the surface circumjacent the terminal. A filler of adhesive, rubberlike, insulative material is disposed within the interior of the cover piece and embeds therein the clip, the portion of the lead connected thereto, and the portion of the terminal engaged by the clip. The filler effects adherence of the cover piece to the surface portion circumjacent said terminal.Type: GrantFiled: February 20, 1980Date of Patent: April 20, 1982Assignee: Hobson Bros., Inc.Inventor: William J. Leitmann
-
Patent number: 4314092Abstract: Cable splices of outside telephone plant are rehabilitated by a method in which a length of tubing of a kit of parts is moved over end portions of cables which are to be respliced, if necessary. The tubing is collapsed adjacent jacketed portions of the cables and a collar comprising a plurality of turns of sealing tape is formed about the jacket of each of the cables in adjacent locations. A spacer block is positioned between the collars to maintain the cables spaced apart after which a liner made of a perforated, transversely corrugated strip of plastic material is wrapped about the splice. The tubing is extended over the liner and its lower end is taped about the collars to form a closed end to prevent the escape of a waterproofing material which is flowed into the opposite open end of the tubing. A length of transversely and longitudinally scored plastic is wrapped about the tubing and cut along one of the score lines to form a cover which is secured by a plurality of clamps.Type: GrantFiled: April 29, 1980Date of Patent: February 2, 1982Assignees: Bell Telephone Laboratories, Incorporated, Western Electric Company, Inc.Inventors: Mills L. Fleming, Francis J. Mullin
-
Patent number: 4304959Abstract: An electrical connector comprising a heat-shrinkable sleeve, solder, a solder wettable insert and optionally a pre-installed electrical conductor, in fixed locations in the sleeve, the insert assisting in control of solder flow when the connector is heated to join the conductor to a terminal pin.Type: GrantFiled: March 2, 1978Date of Patent: December 8, 1981Assignee: Raychem Pontoise S.A.Inventors: Lajos J. Vidakovits, Didier Watine
-
Patent number: 4292099Abstract: The present invention relates to a device and method for environmentally sealing a wire splice for use in nuclear power stations and the like. More particularly the device includes three components, an end cap, a sleeve and a separator. The end cap is cross-linked and heat shrinkable. The sleeve and separator fuses under the temperature required for shrinking the end cap. Upon fusing, the sleeve and separator mixes into an impermeable unitary mass in which are embedded the wires.Type: GrantFiled: June 9, 1980Date of Patent: September 29, 1981Assignee: AMP IncorporatedInventor: Leon J. Dinger
-
Patent number: 4289553Abstract: A heat-recoverable article, especially a heat-shrinkable polymeric sleeve, is provided with an inner lining of a continuous metal foil to provide protection against inward water vapor transmission. The lining is preferably aluminium foil having a thickness of from 10 to 25 microns and is thus sufficiently thin that, on recovery, it leads to an even surface configuration without itself tearing or otherwise being damaged. The article is also preferably provided with central reinforcing means comprising one or more longitudinally compressible coils and is especially useful in the protection and insulation of splices in communication cables.Type: GrantFiled: October 30, 1978Date of Patent: September 15, 1981Assignee: N.V. Raychem S.A.Inventor: Jean-Marie E. Nolf
-
Patent number: 4283239Abstract: A method of bracing an article, especially a junction between conduits subject to an internal pressure greater than that of their surroundings, which comprises applying thereto, in the order listed, a gas-impermeable member (this step may be omitted), a reinforcing member and a heat-recoverable member, the reinforcing member being radially inwardly deformable, at least at elevated temperatures, and heating the assembly to cause recovery of the heat recoverable member.Type: GrantFiled: February 14, 1979Date of Patent: August 11, 1981Assignee: N.V. Raychem S.A.Inventors: Nicholas T. Corke, Christian A. M. Debbaut
-
Patent number: 4283596Abstract: A method of making an electrical connection between two electrical conductors includes, in addition to making the electrical connection, the steps of positioning the conductors within a heat-shrinkable sleeve whereby they are held, by an insert positioned within the sleeve, in a substantially fixed transverse relationship to each other in the sleeve, and applying heat to shrink the sleeve. Electrical connectors are also described, one of which comprises a heat-shrinkable sleeve having an insert positioned therein for holding conductors to be connected in a substantially fixed relationship to each other, and a quantity of solder positioned within the sleeve between the insert and an end of the sleeve. A further connector comprises a heat-shrinkable sleeve having an insert positioned therein, the insert comprising at least two compartments side-by-side to one another.Type: GrantFiled: May 7, 1979Date of Patent: August 11, 1981Assignee: Raychem Pontoise S.A.Inventors: Lajos J. Vidakovits, Didier J. M. Watine
-
Patent number: 4282396Abstract: The invention relates to an article suitable for making an electrical connection between two electrical conductors, for example an earth conductor and the outer conductor of a coaxial cable. The article comprises a heat-shrinkable sleeve and a quantity of solder which is positioned eccentrically within the sleeve and is held by and/or on the sleeve. The sleeve also comprises or has guide means capable of locating a portion of the earth conductor in proximity to the quantity of solder. On shrinking of the sleeve and fusing of the solder, an electrical connection can be made between an earth conductor received in the guide means and the outer conductor of a coaxial cable received in the sleeve.Type: GrantFiled: May 22, 1979Date of Patent: August 4, 1981Assignee: Raychem Pontoise S.A.Inventors: Didier J. M. M. Watine, Jean P. M. Hine, Jean M. H. Catabelle, Jean C. C. Delamotte
-
Patent number: 4273953Abstract: A cable splice comprising a metallic sleeve member joining the conductor ends, a layer of adhesive over the sleeve member adjacent insulation and lead sheath, a helically-wrapped insulation layer formed of a thermosetting polymer, an overlapped layer of fabric surrounding the insulation layer, an overlapped layer of lead foil surrounding the fabric layer and extending over the lead sheath a helically-wrapped heat-shrinkable tape layer surrounding the lead foil layer and a heat-shrinkable sleeve surrounding the splice area which resists invasion by corrosive well fluids and consequent corrosive in high pressure gassy wells, and a method for forming said cable splice.Type: GrantFiled: January 18, 1979Date of Patent: June 16, 1981Assignee: Centrilift, Inc.Inventor: Raymond L. Guzy
-
Patent number: 4271329Abstract: A braid, consisting of monofilaments, made of two different resins which are adapted, when heated, to fuse and mix and be subjected to polymerization or cross-linking. The braid is interposed between a thermo-retractible sleeve and conductors which are to be covered by the sleeve.Type: GrantFiled: July 6, 1977Date of Patent: June 2, 1981Assignee: Compagnie Francaise des IsolantsInventor: Michel Perelmuter
-
Patent number: 4271330Abstract: The invention relates to an article suitable for making an electrical connection between two electrical conductors, for example an earth conductor and the outer conductor of a coaxial cable. The article comprises a heat-shrinkable sleeve and a quantity of solder which is held by and/or on the sleeve, and is positioned eccentrically within the sleeve. Two discrete quantities of solder may be used.Type: GrantFiled: May 22, 1979Date of Patent: June 2, 1981Assignee: Raychem Pontoise S.A.Inventors: Didier J. M. M. Watine, Christian P. Nadal
-
Patent number: 4270021Abstract: A method and composition for effecting splices of high voltage cable sections for use with a mold placed around the cable sections. The composition comprises a liquid polyolefin, a finely divided solid polyolefin and a chain extension agent capable of reacting with condensation reaction moieties of the liquid polyolefin.Type: GrantFiled: December 6, 1979Date of Patent: May 26, 1981Inventor: Marvin H. Gold
-
Patent number: 4264384Abstract: Provided is a method and apparatus for maintaining electrical conductivity between the ends of spliced metallic webs during surface treatment operations.Type: GrantFiled: October 9, 1979Date of Patent: April 28, 1981Assignee: Polychrome CorporationInventor: Evangelos Karanastassis
-
Patent number: 4264780Abstract: A heat-recoverable article comprises a heat-shrinkable sleeve having an elongate electrical conductor retained therein. The conductor projects from at least one end of the sleeve and at least a portion of the length of the conductor within the sleeve is uninsulated, there being a quantity of solder, which is positioned eccentrically in the sleeve, on at least part of the said uninsulated portion. Articles wherein the conductor is an earth conductor may be used to connect the earth conductor to a substrate, for example the outer conductor of a coaxial cable, inserted into the sleeve.Type: GrantFiled: May 22, 1979Date of Patent: April 28, 1981Assignee: Raychem Pontoise S.A.Inventor: Claude A. Rolland
-
Patent number: 4252992Abstract: This invention relates to a device for splicing the ends of two large diameter cable of the type having an inner core of steel wires around which aluminum wires are helically wrapped. The device includes outer and inner housings. A firing barrel and associated pistons are positioned within the inner housing along with a first set of cable gripping jaws. A second set of cable gripping jaws are positioned within the first housing and are in tandem with the first set of jaws.Type: GrantFiled: May 21, 1979Date of Patent: February 24, 1981Assignee: AMP IncorporatedInventors: Hitesh Cherry, Walter M. Werner
-
Patent number: 4252405Abstract: A method of jointing two fibre-optic communications cables (1), having optical fibres (2) arranged in a tubular strength member (4), employing a mechanical ferrule (9, 13) to transmit the strain between the strength members of the two cables. Each cable end is terminated into a ferrule sleeve portion, the optical fibres are jointed, and then the ferrule sleeve portions are secured together.Type: GrantFiled: June 20, 1979Date of Patent: February 24, 1981Assignee: International Standard Electric CorporationInventor: Ronald C. Oldham