Sleeve And End Cap-type Casing Patents (Class 174/93)
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Patent number: 6284976Abstract: A cable splice closure includes a closure body having mating surfaces sealed together. An end seal in the closure has an opening for receiving a cable. The end seal is sealed to the closure body by an adhesive bond. An adhesive injection port in the end seal. The port is provided to communicate an adhesive injected into the end seal to bond surfaces of the end seal and the cable to be received, into a sealed unit. The adhesive is a low surface energy adhesive based on acrylic monomers with organoborane are complexes.Type: GrantFiled: May 11, 2000Date of Patent: September 4, 2001Assignee: 3M Innovative Properties CompanyInventors: Jacqueline J. Pulido, Kenneth D. Rebers, Thomas S. Croft, Alan J. Oshinski, Kwang H. Chu, Daniel G. Lee, Russell P. Smith
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Patent number: 6248953Abstract: An end seal is provided for sealing the space between at least one cable and a closure such as a splice case. The end seal includes a centrally located support structure having a plurality of radially extending members each defined by spaced, opposing end faces and an outer peripheral surface. Each of the radially extending members has first and second mating surfaces and a notch located in the first and second mating surfaces. The first and second mating surfaces are connected to, and extend between, the end faces of their respective radially extending members. The end seal also includes a plurality of segments having spaced, opposing end faces. The plurality of segments each interlock with the support structure so that each of the end faces of the segments extend in a common plane with one of the end faces of the support structure. Each segment includes an outer peripheral surface and first and second end surfaces connected to and extending between the end faces of the segment.Type: GrantFiled: October 21, 1999Date of Patent: June 19, 2001Assignee: 3M Innovative Properties CompanyInventor: James R. Miller
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Patent number: 6245999Abstract: An arrangement for enclosing an elongate substrate, e.g. a cable connection includes an outer resilient sleeve held in a radially-expanded configuration by being mounted on an inner holdout member, wherein the holdout member includes a generally tubular member that has a slit extending longitudinally thereof such that application of a force radially thereof causes the holdout member to reduce in circumference and to collapse around the substrate under the action of the recovery force of the outer resilient sleeve.Type: GrantFiled: June 16, 1999Date of Patent: June 12, 2001Assignee: Raychem LimitedInventors: Philip Costigan, Christopher Borrill, Philip Roland Winfield, Jonathan Wakenshaw
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Patent number: 6239371Abstract: A cable splice closure is provided including first and second casing parts, opposing edges of which may be brought together to close the closure, and a series of protrusions extending along the exterior of the first casing part adjacent to the edge of the first casing part. Also included are a series of openings extending adjacent the edge of the second casing part in an extending wall which, when the closure is closed, overlaps the exterior of the first casing part such that each protrusion is resiliently interlocked with a respective opening. The second casing part further includes a plurality of apertures in its extending wall for receiving a lever to force the casing parts together such that the respective protrusions and openings interlock and to force the casing parts apart such that the respective protrusions and openings disengage.Type: GrantFiled: May 3, 1999Date of Patent: May 29, 2001Inventors: Dirk Roosen, Daniele Scapicchio
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Patent number: 6231051Abstract: A cable sleeve consisting of two seal members with adjustable cable entry openings and an integrated cable clamping apparatus. The adjusting in the cable entry opening occurs by removal of concentric adjusting rings, wherein the number of adjusting rings removed and the strength of the sealing wrapper applied are determined with the aid of a template.Type: GrantFiled: December 8, 1998Date of Patent: May 15, 2001Assignee: RXS Kabelgarnituren GmbHInventors: Thorsten Mueller, Rainer Zimmer
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Patent number: 6229092Abstract: A cable for loose-material handling systems inside a conveyance duct includes a core (11) having a plurality of strands (12) woven together, a covering sheath (14) for the core and disk-shaped members (17) molded on the sheath (14) for entrainment of the loose material. The sheath (14) includes a mesh of strands (15) with thick weft forming with the cable axis (13) an angle greater than that of the strands (12) of the core (11). A seam (16) between the sheath (14) and the core (11) is provided at least at the disk-shaped members (17).Type: GrantFiled: February 14, 2000Date of Patent: May 8, 2001Inventor: Paolo Pirovano
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Patent number: 6218618Abstract: A method and apparatus is provided for encapsulating a cable splice. An enclosure shell is positioned about the cable splice. The shell includes an inlet port and an outlet port. A curable encapsulant is inserted into the shell through the inlet port. An outlet container is positioned over the outlet port to contain exiting encapsulant. The container is formed of light transmissive material so that the exiting encapsulant may be observed thereby providing a visual indication that the splice is fully encapsulated.Type: GrantFiled: November 1, 1996Date of Patent: April 17, 2001Assignee: Thomas & Betts International, Inc.Inventors: Andrew J. O'Neill, Kenneth R. Dumont
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Patent number: 6198048Abstract: A device for mounting a cable in a cable protection sleeve that makes use of a disc (101;102). Among the disc's various structural features, the disc has a front face or surface, that is, one which is intended to face towards the outside of the sleeve. The front face of the disc includes at least one cable securing mechanism (140;141) which, in turn, includes a cable securing flange (141, 4, 4) enclosed in a housing (120; 20, 20; 20, 23, 20) formed on the front face of the disc. When the cable securing flange is received in the housing, a cable secured relative to the disc by the flange resists outwardly directed tensile forces, as well as torsion and bending moments applied to the cable.Type: GrantFiled: December 2, 1998Date of Patent: March 6, 2001Assignee: Pouyet, S.A.Inventors: Alain Juhel, Olivier Perdriau
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Patent number: 6184472Abstract: A strip for winding around and gripping an elongate object, e.g. a cable, each end of the strip including a connection part which may interlock with a respective connection part of another, substantially identical strip, thereby enabling a plurality of such strips to be connected together substantially end-to-end to form a longer strip for winding around and gripping an elongate object.Type: GrantFiled: September 23, 1998Date of Patent: February 6, 2001Assignee: N.V. Raychem S.A.Inventors: Francis Dams, Maarten Michiels, Jos Vandepoel
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Patent number: 6160222Abstract: The present invention relates to a connection protecting device enabling cable ends to be sealingly connected. This device includes a rigid support mechanically connected to each of the cables, a flexible covering wrapping around the ends of the cables, and a seal onto which the flexible covering is applied and suitable for rendering the device tight around the ends of the cables.Type: GrantFiled: November 24, 1997Date of Patent: December 12, 2000Assignee: Cables PirelliInventor: Beatrice Claverie
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Patent number: 6140586Abstract: A system and method for packaging and dressing of a cable bundle. A sleeving is used to encase a cable bundle including a number of actual cables. This sleeving contains several channels in which dummy cables may be installed for representing the actual cables of the cable bundle which the sleeve encases. The sleeve is held in place around the cable bundle using a closing assembly.Type: GrantFiled: June 12, 1998Date of Patent: October 31, 2000Inventor: Kamran Imani
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Patent number: 6111200Abstract: A shrinkable protection element for covering filiform items, such as a joint between electrical cables. The element comprises a first (2) and second (3) sleeve, the second sleeve being coaxially superimposed upon the first one. Both sleeves are elastically expandable in a radial direction, i.e. shrinkable. The first sleeve is made up of a compound of cross-linked polymeric material including a peroxide curable hydrocarbon terpolyme of ethylene, propylene and a non conjugated dilene EPDM material, while the second sleeve is made of sulfur-cured EPDM material. As a result, the shrinking speed of the second sleeve (3) is higher than that of the first sleeve (2), especially at temperatures between 0.degree. C. and 40.degree. C. The cables may thereby be used about 30 minutes after the installation of the protection element thereon.Type: GrantFiled: November 28, 1997Date of Patent: August 29, 2000Assignee: AlcatelInventors: Ivan Florent De Schrijver, Annie Cheenne-Astorino
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Patent number: 6069320Abstract: A cable splice enclosure made up of: (1) a splice enclosure tube having two compressible ends with annular ledges inside the compressible ends; (2) first and second compressible grommets adapted to be inserted into the compressible ends; and (3) two outer shells adapted to be fastened to said first and second compressible ends of the cable splice enclosure tube. The outer shells have an inclined outer end portion that: (1) holds the compressible grommets in abutted relation to the annular ledges; and (2) compresses the compressible ends, which, in turn, radially compresses the grommets to form a watertight seal around the cables to be spliced. In a different embodiment, which is suitable for enclosing butt-splices, the splice enclosure tube has an open compressible end and a closed end. The open compressible end of the butt-splice enclosure tube uses the same parts and works the same as both ends of the splice tube extender.Type: GrantFiled: March 23, 1998Date of Patent: May 30, 2000Assignee: Etcon CorporationInventors: Joseph Rocci, David W. Kirby
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Patent number: 6064006Abstract: An end seal for a cable splice closure includes a core portion having a slot for receiving a cable. A tail portion, extending from the core portion, is of sufficient length and flexibility to be extended over the slot. An adhesive injection port is provided in the core portion to communicate an adhesive injected into the injection port to the slot to bond into a sealed unit the surfaces of the end seal and the cable to be received. The adhesive is a low surface energy adhesive based on acrylic monomers with organoborane amine complexes.Type: GrantFiled: March 12, 1999Date of Patent: May 16, 2000Assignee: 3M Innovative Properties CompanyInventors: Jacqueline J. Pulido, Kenneth D. Rebers, Thomas S. Croft, Alan J. Oshinski, Kwang H. Chu, Daniel G. Lee, Russell P. Smith
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Patent number: 6051792Abstract: A retention strip for winding around an elongate object is disclosed. When the strip is wound in use it can decrease in length when compressed around the object, thereby contracting around the object. The strip preferably includes one or more, preferably a plurality of, collapsible portions, and the strip can decrease in length due to the collapsing of one or more of the collapsible portions.Type: GrantFiled: July 22, 1997Date of Patent: April 18, 2000Assignee: N.V. Raychem S.A.Inventors: Jesper Damm, Etienne Laeremans
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Patent number: 6037544Abstract: Disclosed is a splice closure for telecommunications cables. The splice closure includes a body having an upper portion and a lower portion, at least one entrance hole formed at opposing ends of the body, a plurality of flanges formed longitudinally along edges of both the upper and lower portions of the body where the same are joined, a compound reservoir formed between the flanges and into which a sealing compound is injected to form a seal, end stoppers having at least one cable hole and which are provided at ends of the splice closure, and plugs received in the cable holes of the end stoppers.Type: GrantFiled: November 20, 1998Date of Patent: March 14, 2000Assignees: LG Chemical Ltd, LG Cable and Machinery Ltd.Inventors: Jeoung-Yeoun Lee, Jeong-su Yu, Jang-youl Rhee, Dong-pyo Kim, Hui-jung Kim, Jae-ik Whang, Sang-Cheol Lee
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Patent number: 6025561Abstract: A casing, e.g. for a cable splice closure, includes: (a) first and second parts, each of which has a peripheral flange, and (b) a clamping member in the form of a split ring which, in use, is placed around the flanges of the first and second parts and thereby clamps the parts together, at least part of the clamping member being formed as a single flexible piece which may be flexed open to allow the clamping member to be placed around the flanges of the first and second parts.Type: GrantFiled: March 2, 1998Date of Patent: February 15, 2000Assignee: N.V. Raychem S.A.Inventor: Francis Dams
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Patent number: 6015953Abstract: An end of a conductor having a stranded conductor layer wound around a tension member made of resin-reinforced carbon fiber is cut back to expose the end of the tension member. The exposed end of the tension member is inserted into a metal fitting having multiple longitudinal slits. A metal sleeve is then fit over the metal fitting and also partially over the stranded conductor layer before compress-fitted into place. Accordingly, it is possible to attach, with good workability and sufficient tensile strength, a conductor that has a tension member made of resin-reinforced carbon fiber.Type: GrantFiled: March 28, 1997Date of Patent: January 18, 2000Assignees: Tohoku Electric Power Co., Inc., Tokyo Rope Mfg. Co, Sanwa Tekki Corporation, Showa Electric Wire & Cable Co. Ltd.Inventors: Shigeru Tosaka, Syuji Tachizaki, Kouetu Sato, Yoshihiro Takahashi, Hiroshi Kimura, Hiroshi Tajima, Haruki Susukida, Jun Sato, Masakazu Kojima, Hirotoshi Ebiko, Takeshi Ito
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Patent number: 5998737Abstract: A clamping device, in particular a cable clamping device for telecommunications technology and data systems technology. The clamping device is of a generic type which ensures that objects having different diameters are clamped simply and reliably and without the risk of an impermissibly high degree of pinching of the object to be clamped. The clamping device includes a clamping member, which is formed from a basic body and at least one clamping arm and into which the object to be clamped is inserted. The clamping member is pushed into a sleeve having cutouts in which at least one of the clamping arms of the clamping member engages. By rotating the sleeve with respect to the fixed basic body at least one of the clamping arms reduces the clamping inside diameter of the clamping member.Type: GrantFiled: November 21, 1997Date of Patent: December 7, 1999Assignee: Krone AktiengesellschaftInventors: Jurgen Weiss, David Patrick Murray
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Patent number: 5977484Abstract: A low odor cover for a connector of a cable is disclosed, which has two interfitting sleeves which are chemically swellable and which are initially in dilated configuration, and which subsequently shrink into place by evaporation of the volatile dilation composition. Both sleeves are made of a high density elastomeric material, such as a natural or synthetic rubber, preferably (EPDM), neoprene or Hypalon.TM. rubbers. The volatile liquid combination dilation composition used is composed of a C.sub.7 -C.sub.8 aliphatic hydrocarbon component and a fluorocarbon component. The device provides a protective cover for a cable connection or splice which can be easily installed, quickly shrunk into tight vapor resistant protective covering within a matter of a few minutes, and can be installed without the need for any application of heat or use of special tools, equipment or materials.Type: GrantFiled: January 8, 1997Date of Patent: November 2, 1999Inventors: Michael G. Jones, Bernard K. Mueller
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Patent number: 5962811Abstract: An electrical splice enclosure for enclosing a splice of an electrical cable. The splice enclosure includes an enclosure housing. The housing is formed of a lower housing portion and a cover portion defining a bounded interior therein. The lower housing portion includes a bottom surface, an upwardly extending wall bounding the bottom surface and an open upper surface opposite the bottom surface. The lower housing portion further includes a cable entry opening through the wall for permitting entry of the cable into the lower housing portion. The cover portion is positionable over the open upper surface of the lower housing portion so as to enclose the cable splice within the enclosure housing. The cover portion and the wall each include an encapsulant fill opening for permitting the housing interior to be gravity filled with a curable encapsulant, with the housing being positioned in multiple different positions.Type: GrantFiled: April 28, 1995Date of Patent: October 5, 1999Assignee: Thomas & Betts CorporationInventors: Julio F. Rodrigues, Glen Ellis, Gary Lowery
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Patent number: 5949024Abstract: A cable sleeve formed of an envelope member with an attached flange against which a seal system composed of an annular seal is pressed with the assistance of a straining ring. The annular seal is composed of an elastomer with a Shore hardness of 40.degree. to 70.degree. and has its encompassing inner region inserted as a channel seal into the seal channel of a seal member.Type: GrantFiled: November 12, 1997Date of Patent: September 7, 1999Assignee: RXS Kabelgarnituren GmbHInventors: Franz Froehlich, Rainer Zimmer
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Patent number: 5949022Abstract: A cable splice closure assembly includes an end cap body having at least one cable passage hole therein for the passage of a cable therethrough, the end cap body defining a seal zone for retaining a sealing material and a thread zone, and a screw plug having a cable passage hole therein for the passage of a cable therethrough, the screw plug being adapted for mating engagement with the thread zone of the end cap body.Type: GrantFiled: March 18, 1996Date of Patent: September 7, 1999Assignee: LG Chemical Ltd.Inventors: Young Ki Park, Yun-Won Chang
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Patent number: 5936202Abstract: A protective cover assembly for an end of a cable connector having a cable housing that encloses a plurality of connective pins or sockets and that satisfies all requirements for space applications. A connector body flange is formed at the extremity of a cable and is positioned so that it may register with a corresponding connector body flange on the end of a companion cable to which a connection is to be made, one cable end having cable lead pins and the companion cable end having lead sockets with which the pins register. A latch mechanism having a latch housing is received in the connector body flange and a crank connected to a manually rotatable cap actuates a spring-loaded latch element that is engageable with a connector body flange to secure or to release the cover assembly with the simple twisting motion of the cap, thereby simplifying the task of effecting coupling and decoupling of the cable ends.Type: GrantFiled: July 10, 1997Date of Patent: August 10, 1999Assignee: McDonnell Douglas CorporationInventor: Roger D. Yovan
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Patent number: 5912433Abstract: A cable splice closure includes a closure body having mating surfaces sealed together. An end seal in the closure has an opening for receiving a cable. The end seal is sealed to the closure body by an adhesive bond. An adhesive injection port is provided in the end seal to communicate an adhesive injected into the end seal and to bond into a sealed unit the surf aces of the end seal and the cable to be received. The adhesive is a low surface energy adhesive based on acrylic monomers with organoborane amine complexes.Type: GrantFiled: January 17, 1997Date of Patent: June 15, 1999Assignee: Minnesota Mining and Manufacturing CompanyInventors: Jacqueline J. Pulido, Kenneth D. Rebers, Thomas S. Croft, Alan J. Oshinski, Kwang H. Chu, Daniel G. Lee, Russell P. Smith
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Patent number: 5895890Abstract: A boot 23a for insulating the bare end of an insulated electrical wire includes a neck 25 to hold a wire or wires 21a centrally in the boot. The boot is filled with a solidifiable liquid substance 24, such as epoxy resin, to encapsulate the wire or wires after insertion. The boot may be transparent and include depth markings 26, 27 to determine the minimum insertion depth of the wire or wires 21a and the minimum level of substance.Type: GrantFiled: September 23, 1996Date of Patent: April 20, 1999Assignee: Sumitomo Wiring Systems, Ltd.Inventors: Kenichi Uchiyama, Masashi Sugiyama
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Patent number: 5859385Abstract: A method of making a shrink sleeve in which the inner surface of the shrink sleeve is provided in a hot melt adhesive and a cross-linking substance which, when heat is provided the shrink sleeve onto a cable, causes cross linking of the hot melt adhesive to reduce its flowability.Type: GrantFiled: October 4, 1996Date of Patent: January 12, 1999Assignee: Krone AktiengesellschaftInventor: Norbert Nicolai
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Patent number: 5844170Abstract: A cable closure assembly using a cold shrink, or pre-stretched, tube has a flowable material in the assembly, and an extra support core which reinforces the conventional support core that maintains the tube in a radially expanded state. The flowable material may be used to fill voids, or provide improved bonding or water resistance. The extra, or secondary, support core has an outer diameter which is approximately equal to the inner diameter of the primary support core. The secondary support core is sufficiently long to substantially support the area where the flowable material abuts the primary support core. In one embodiment particularly suited for power applications, the elastomeric tube is electrically insulative and the flowable material provides electrical stress control, and another elastomeric tube is provided having a high permittivity. The primary support core may have a varying diameter such that the tubular member has different zones with different expanded diameters.Type: GrantFiled: March 1, 1996Date of Patent: December 1, 1998Assignee: Minnesota Mining and Manufacturing CompanyInventors: Lawrence C. Chor, Brian K. Molitor
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Patent number: 5824954Abstract: An electrical interconnection device including an electrical element and a sealing member sealed within a body. The body is constructed of a first section and a second section bonded together to form an enclosure for retaining the electrical element and sealing member. Sealed passageways extend from the sealing member to the electrical element. Substrates are inserted through the sealing member into the passageways for connection to the electrical element.Type: GrantFiled: June 16, 1997Date of Patent: October 20, 1998Assignee: Raychem CorporationInventors: Barton A. Biche, Eric David Nyberg, James Elms Swett, Jr.
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Patent number: 5824956Abstract: An accessory for enclosing the connection area between low voltage power cables has a pair of rigid end flanges for disposition over the adjacent insulated portions of the cables with an elastic wrap around corrugated elastomeric flap intermediate portion between the end flanges for tightly enwrapping the cable connection area. The cables are passed through housing parts or ports in the end flanges, the connections are made, and the wrap around flap is tightly drawn about the connection, making a sealing union with the flanges. Longitudinal edges of the flap are joined and clamped together.Type: GrantFiled: September 23, 1997Date of Patent: October 20, 1998Assignee: Cables PirelliInventors: Beatrice Jeanne Marie Claude Garban, Daniel Hubert Marie Dupays
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Patent number: 5817979Abstract: A bond bar assembly spans an electrical cable splice. The bond bar assembly includes a conductive bond bar having opposed ends and a longitudinal central extent which spans the cable splice. Each end of the bond bar has a generally planar surface for engagement with the cable. A radially contractable clamping member is securable about the cable and about the planar surface of each bond bar end for securing the bond bar ends to the cable. The planar surface of each bond bar end includes a deflectable jacket skiving member which is deflectably movable from a first position in non-skiving engagement with the jacket of the cable to a second position in skiving engagement with the cable jacket upon the radial contraction of the clamping member. Such arrangement positionally confines and secures the bond bar with respect to the cable.Type: GrantFiled: May 8, 1995Date of Patent: October 6, 1998Assignee: Thomas & Betts CorporationInventor: Andrew J. O'Neill
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Patent number: 5796041Abstract: A waterproof protective cover including an identifying portion which is capable of identifying a predetermined position in a chamber for receiving a connection part of electric wires in an insertion direction. The identifying portion is formed outside a side wall of either upper casing member or lower casing member. By taking advantage of the identifying portion, the connection part of electric wires can be positioned at a predetermined position in a chamber defined by the upper and lower casing members. Moreover, the chamber for receiving the connection part of electric wires has no change in a capacity thereof, so that a filling amount of the sealant is not reduced; therefore, sealing performance can be improved.Type: GrantFiled: May 28, 1996Date of Patent: August 18, 1998Assignee: Yazaki CorporationInventors: Yasuhiro Suzuki, Yukio Ohashi
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Patent number: 5792989Abstract: An end seal for splice closures or for terminals including a body having a core portion and an extended tail portion of a flexible resilient material. The core portion has an outer periphery and openings extending through the core. The openings communicate with the outer periphery. A tail portion is integral with and extends from the core periphery to be wrapped about the core and the cables to be placed in the openings. A sealant strip extends around the cables and between the abutting peripheral surface of the core and the wrapped tail portion. The strip is responsive to electrical or electromagnetic stimulation for heating the sealant strip and causing the strip to bond with adjacent contact surfaces of the cable and the body.Type: GrantFiled: November 12, 1996Date of Patent: August 11, 1998Assignee: Minnesota Mining and Manufacturing CompanyInventor: Russell P. Smith
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Patent number: 5793921Abstract: A fiber optic splice closure assembly has two end plate assemblies, and a closure base and a closure cover attached to the end plate assemblies. An adapter is secured within a cable entrance port in the end plate assembly to alter the end plate opening to accommodate a fiber optic cable. The adapter restrains the cable sheath against axial forces and provides a seal between the optical fiber cable, the adapter and the end plate assembly. A bracket assembly is provided to anchor the optical fiber cable strength member to the end plate assembly. The closure provides a mounting bar secured to said end plate assemblies proximate the closure base and a mounting platform secured to the mounting bar.Type: GrantFiled: October 31, 1996Date of Patent: August 11, 1998Assignee: PSI Telecommunications, Inc.Inventors: Timothy A. Wilkins, Donald J. Smith
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Patent number: 5792991Abstract: A device for forming an environmental seal around an object includes:(a) a split housing having a chamber that can surround the object;(b) an inflatable bladder for inflating around the object and within the chamber;the housing having a window breaking through its split so that the bladder seals to a seal outside the chamber.Type: GrantFiled: May 31, 1996Date of Patent: August 11, 1998Assignee: N.V. Raychem S.A.Inventor: Jean-Marie Etienne Nolf
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Patent number: 5777268Abstract: An environmentally sealed splice closure (20) for buried telecommunications cables (32) and splices (33) includes a base (22a and b) having ports (31a and b) for receiving the telecommunications cables (32) therethrough. A cap (25) is received on the base (22) to form a cavity (50) within the splice closure (20). The cavity (50) is filled with a gel sealant (45 and 47). A dome (55) on the end of the cap (25) opposite the base (22) accommodates volumetric and pressure changes within the closure (20).Type: GrantFiled: September 17, 1996Date of Patent: July 7, 1998Assignee: Raychem CorporationInventors: Barry Wayne Allen, Terry Edward Frye, Michael Earle Labonge, Linda Jones Joyner
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Patent number: 5767448Abstract: An apparatus for sealing a core of an elongate cable in which a polymeric core of an insulating or a conductive polymer is positioned between first and second elongate electrodes. The apparatus is a container which has a first portion with an open end into which the cable can be inserted and a second partially closed end which has first and second openings. The first portion also contains a sealant, e.g. a grease or a gel. A first removable guide tube is inserted through the first opening and a second removable guide tube is inserted through the second opening, the first and second guide tubes being suitable for insertion of the first and second elongate electrodes, respectively. The apparatus allows insertion of the elongate electrodes after the polymer has been removed from them, without allowing contact between the electrodes and the sealant.Type: GrantFiled: September 30, 1996Date of Patent: June 16, 1998Assignee: Raychem CorporationInventor: Wesley B. Dong
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Patent number: 5758004Abstract: A closure with improved cable strain relief, having a body with a closed end and an open end, a tubular base having first and second ends with the open end of the body releasably secured to the first end of the base, and a strain relief member attached to the second end of the base. The strain relief member is composed entirely of non-metallic components, and includes a plate having cutouts therein forming cable ports, each of the cutouts having a wall and an inner surface along the wall, there being a plurality of gripping teeth along each inner surface, and each wall having at least one channel therein with entry and exit slots. A cable tie securing a cable in one of the cutouts is threaded through the channel, extending out the entry and exit slots. The plate advantageously has a plurality of outer surfaces shaped to fit snugly with an inner surface of the second end of the base, and flanges located at each outer surface for attachment to an edge of the second end of the base.Type: GrantFiled: November 27, 1996Date of Patent: May 26, 1998Assignee: Minnesota Mining and Manufacturing CompanyInventors: Sergio A. Alarcon, Jerry D. Jackson
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Patent number: 5753854Abstract: A device and method are provided for installing fire-proof material quickly and easily. The fire-proof material, once installed, inhibits the spread of igniting material across an annular space surrounding an object. A device according to the invention includes a blanket made of a fire-resistant material. In a preferred embodiment, this material is silica fabric. A plurality of ribs are attached at spaced-apart locations along the length of the blanket, each rib extending substantially the width of the blanket. Each rib, in a first condition, permits one side of the blanket to be brought into contact with the object, and in a second condition, holds the blanket in place around the object. The ribs are preferably snap strips that have two stable orientations: an extended stable orientation, which corresponds to the first condition, and a curled stable orientation, which corresponds to the second condition.Type: GrantFiled: July 31, 1996Date of Patent: May 19, 1998Assignee: Polytrap Co. Inc.Inventors: William J. Richards, Sherman T. Whipple
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Patent number: 5753861Abstract: A covering device for applying an elastic cover to an elongate object includes a folded elastic sleeve having an inner sleeve portion and at least one coaxially disposed outer sleeve portion overlaying the inner sleeve portion. The inner and outer sleeve portions are continuously joined at least at one circumferential edge. The folded elastic sleeve is positioned on a support for holding the folded elastic sleeve in a radially stretched condition. The support has a first end arranged adjacent to the continuous joint of the outer and inner sleeve portions. Relative movement between the outer sleeve portion and the inner sleeve portion results in the outer portion moving and recovering onto the elongate object. The support includes stress relief means associated with the first end for reducing the stress in the outer sleeve portion adjacent the first end of the support when the outer sleeve portion has been moved onto the object to be covered.Type: GrantFiled: September 25, 1996Date of Patent: May 19, 1998Assignee: Minnesota Mining and ManufacturingInventors: Clemens Hansen, Herbert Dust, Gerhard Lohmeier
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Patent number: 5700012Abstract: The invention includes a seal insert made of elastic sealing material for the sealing of cable connections. This seal insert is made of several sealing disks which are provided with concentric stampings or grooves and with a radial slit. For sealing, the cable openings of the sealing disks are fitted by removing concentric rings. For the sealing, the individual sealing disks are arranged reciprocally over one another, whereby the radial slits do not overlap and whereby the concentric grooves engage a smooth underside of an adjacent disk or a smooth surface of the connecting apparatus. A double seal is shown for the introduction of uncut cables.Type: GrantFiled: October 4, 1996Date of Patent: December 23, 1997Assignee: RXS Kabelgamituren GmbHInventors: Franz-Fr Froehlich, Wolf Kluwe, Hans-Juergen Meltsch
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Patent number: 5691508Abstract: An enclosure (400,500) having a pair of covers fastenable together to close about and seal a cable splice between end portions of a pair of multiconductor cables. At least one routing channel (418 or 420;528) is provided at a first end (406,506) and a single routing channel (424;536) at the second end (408,508), with a splice-receiving region (454) provided adjacent inner ends of the routing channels. Axially- and laterally-staggered outermost and innermost embossments are associated with each routing channel to establish an interruption in a linear path between the cable exits and a grounding region for the multiconductor shielded cables, so that the cables must be substantially bent to course around the embossments in serpentine fashion, defining cable strain relief. A partitioned region (552) in enclosure (500) accommodates receipt of a spliced connection of a pair of single-conductor coaxial cables into a linear routing channel bypassing the grounding region for multiconductor shielded cables.Type: GrantFiled: October 31, 1995Date of Patent: November 25, 1997Assignee: The Whitaker CorporationInventors: David Ray Radliff, Todd Richard Okimoto, Leung Man Shiu
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Patent number: 5679927Abstract: An environmentally sealed enclosure for encapsulating a splice between cable segments. Cable gripping apparatus in the housing limits movement of the cable relative to the housing and includes a bonding portion to prevent separation of sealant from a cable when a cable is positioned to extend through the entrance into the housing. Walls of top and bottom shell segments are configured to be locked together for forming an enclosure containing encapsulant for protecting the splice.Type: GrantFiled: February 7, 1995Date of Patent: October 21, 1997Assignee: Communications Technology CorporationInventors: Antoon M. Hurkmans, Suresh Venkat, Selim Messelhi
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Patent number: 5675124Abstract: The invention comprises a sealing grommet having a body made of an elastomeric material. The body has two halves to be assembled together in a sealing arrangement. The halves have a cable receiving opening extending therethrough from one side to another side. The opening has an outer diameter with a series of pliable webs extending inwardly into the opening to form a cable receiving channel. The webs in a center of the halves are larger and extend further into the opening than the webs along the sides of the halves thereby making the channel narrower in the center of the halves than along the sides of the halves to enable a sealing relationship to be formed about a variety of cable sizes.Type: GrantFiled: April 30, 1996Date of Patent: October 7, 1997Inventors: Robert Eugene Stough, William Joseph Garver, Scott Allan Strickler
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Patent number: 5661842Abstract: A method for providing substantial protection and insulation for submarine cable joints without utilizing costly molding and x-ray equipment. A heat shrinkable polyolefin protective covering includes an unexpanded conical transition between two expanded cylindrical portions. The unexpanded conical transition precisely locates the protective covering against a conical portion of a submarine cable jointbox. Polyamide adhesive is applied to the inside surfaces of the protective covering. During the application of heat to the protective covering, insubstantial relative movement between the conical transition portion of the protective covering and the locating portion of the jointbox allows proper alignment of the protective covering as the expanded cylindrical portions shrink and move relative to the jointbox. The diameters of the cylindrical portions of the protective covering are selected such that a nominal hoop stress is created during heating to minimize air entrapment and voids in the adhesive.Type: GrantFiled: May 26, 1995Date of Patent: August 26, 1997Assignee: AT&TInventor: Michael Allen Faust
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Patent number: 5657209Abstract: A rigid cable clamp for holding cable in a bent condition, the clamp having two rigid members which when assembled make a curved cable passage to hold cable bent. One or both members is electrically conductive and presses against the bared cable shield to provide electrical continuity into the member. A slot is provided in the electrically conductive member for frictionally receiving a metal ground support for the clamp so as to ground the cable shield.Type: GrantFiled: March 13, 1996Date of Patent: August 12, 1997Assignee: Northern Telecom LimitedInventors: L. Eugene Batten, Jr., Jack W. Davis
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Patent number: 5626190Abstract: An apparatus for protecting an electrical connection from moisture in a hazardous area adjacent a wellhead barrier of a well enclosing well fluids. The connection is between a first electrical conductor extending from a non-hazardous area and a second electrical conductor extending through the wellhead barrier. The second conductor includes a conductive portion circumscribed by insulation. The first and second conductors are electrically and mechanically coupled to form a connection. A breather boot protects the connection from moisture, the breather boot including an inner cavity for containing the coupling. A first opening receives the first electrical conductor and a second opening receives the second electrical conductor within which the insulation is terminated.Type: GrantFiled: February 16, 1996Date of Patent: May 6, 1997Inventor: Boyd B. Moore
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Patent number: 5625167Abstract: A method of forming a cable seal which includes positioning a sealing material around the cable, positioning a housing around the sealing material, and subsequently positioning at the housing a restricting element that can restrict movement of the sealing material out of an outlet of the housing. The restricting element is a snap or interference fit to the housing and extends to the outlet.Type: GrantFiled: August 19, 1994Date of Patent: April 29, 1997Assignee: N.V. Raychem S.A.Inventors: Lodewijk C. M. Van Noten, Tommy Petersen
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Patent number: 5610370Abstract: A closure for a cable joint having a cable inlet having a cable gripper that can provide strain relief to a cable within the inlet, the cable gripper being adjustable to grip cables of different diameters in such a way that the position of the center line of a gripped cable is substantially independent of cable diameter.Type: GrantFiled: June 21, 1995Date of Patent: March 11, 1997Assignee: Raychem GmbHInventors: Dieter Fremgen, Frank Vock
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Patent number: 5606150Abstract: An enclosure (10) having a pair of covers (12,14) fastenable together to close about and seal a cable splice (200,300) between end portions of a pair of multiconductor shielded cables (202,204;302,304) in either a butt-splice or in-line arrangement. A pair of routing channels (24,26) are provided at a first end (20) and a single routing channel (28) at the second end (22), with a splice-receiving region (90) provided adjacent inner ends (44,46,50) of the routing channels. A grounding region (100) between inner ends of the routing channels (24,26,28) includes a ground contact (102) having two pairs of cable-receiving slots (110,112;114,116) each pair being aligned with a respective routing channel for ends of respective cables to be received thereinto with at least one of the slots engaging an exposed shield portion of the cable.Type: GrantFiled: July 25, 1995Date of Patent: February 25, 1997Assignee: The Whitaker CorporationInventors: David R. Radliff, Leung M. Shiu, William J. Garver, Michael P. Green