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WO1998021802A1 - Obturation en spirale helicoidale avec joints scelles - Google Patents

Obturation en spirale helicoidale avec joints scelles Download PDF

Info

Publication number
WO1998021802A1
WO1998021802A1 PCT/US1997/003620 US9703620W WO9821802A1 WO 1998021802 A1 WO1998021802 A1 WO 1998021802A1 US 9703620 W US9703620 W US 9703620W WO 9821802 A1 WO9821802 A1 WO 9821802A1
Authority
WO
WIPO (PCT)
Prior art keywords
strip
cable splice
splice closure
edges
groove
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/US1997/003620
Other languages
English (en)
Inventor
Sergio A. Alarcon
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
3M Co
Original Assignee
Minnesota Mining and Manufacturing Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Minnesota Mining and Manufacturing Co filed Critical Minnesota Mining and Manufacturing Co
Priority to AU22000/97A priority Critical patent/AU2200097A/en
Publication of WO1998021802A1 publication Critical patent/WO1998021802A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G15/00—Cable fittings
    • H02G15/08—Cable junctions
    • H02G15/18—Cable junctions protected by sleeves, e.g. for communication cable
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/70—Insulation of connections
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G15/00—Cable fittings
    • H02G15/08—Cable junctions
    • H02G15/18—Cable junctions protected by sleeves, e.g. for communication cable
    • H02G15/196—Cable junctions protected by sleeves, e.g. for communication cable having lapped insulation

Definitions

  • This invention relates generally to a cable splice closure body and more particularly to a helically wound strip which forms a shapable enclosure and has sealable interlocking edges.
  • Communication cables are typically constructed of a bundle, which may include conductors of copper, coaxial or optical fibers, surrounded by a metal strength and interference sheathing and an outer protective coating, typically of polyethylene.
  • a metal strength and interference sheathing typically of polyethylene.
  • An enclosure or a closure body is used to sealingly surround the splice.
  • One persistent problem in the use of splice closures involves the need for a complete seal about the splice or closure body.
  • Many prior art splice closures accomplish sealing by providing a complex array of nuts and bolts, clamps, gaskets and heat shrink tubing, as well as potting gels and resins, in various combinations.
  • closures still often suffer leaks or ruptures, particularly along their seals.
  • An additional problem has been the numerous sizes of closures necessary to accommodate the various cable splice sizes which adds to the cost of manufacture and storage. This problem is even more acute at the sealing of the closure to the cable jacket, where even the slightest defect can result in the migration of moisture along the jacket or the inner surface of the closure. A lack of a complete (hermetic) seal can also be particularly detrimental for pressurized closures.
  • thermoplastic polymers such as polyethylene
  • fusion bonding Two specific methods of fusion bonding: (i) direct heating, and (ii) induction heating, may also be used to activate thermoset and thermoplastic (hot-melt) adhesives, as well as thermoelastic (heat-shrink) tubing. Induction heating is sometimes referred to as electromagnetic bonding (EMB).
  • EMB electromagnetic bonding
  • thermoplastic article In direct heating (also known as resistance heating), heat is applied to the thermoplastic article to be bonded by directly attaching heating elements to the article. Current flowing through the elements heats them. The current is supplied by a power source directly connected to the elements, but the heating is not always efficient.
  • One advantage of such a system is that it does not involve emission of radiation, but there are disadvantages such as non-uniform heating of the material.
  • CMB composite bonding material
  • thermoplastic carrier which is compatible (miscible) with the thermoplastic bodies to be welded.
  • H field induces heating in the magnetic material. Heating may be caused by one of two effects: hysteresis loss, or resistive loss from induced eddy currents.
  • the E field does not interact with the magnetic particles. Direct and induction heating techniques may be combined.
  • a strip of resilient plastic material In another application, used for the insulation of piping and electrical cables, a strip of resilient plastic material has been used.
  • the strip includes, at or near one of its longitudinal edges, one or more beads and grooves extending in the longitudinal direction and formed as engagement elements in such a manner that, upon pressing one strip edge against the other, the beads will enter into releasable locking engagement.
  • a suitable solution to the problems associated with ease of installation, seal integrity and strength has not been satisfactorily addressed by the prior art. Therefore, what is needed is a sealed closure, or terminal, through which cables are positioned, and sealing the closure to restrict moisture or other contamination from entering. It is also highly desirable to provide a device which is easy to install and is capable of maintaining seal integrity and strength and can accommodate various numbers of cables and cable sizes.
  • a cable splice closure apparatus utilizing a helically wound strip which forms a shapable enclosure and has sealable interlocking edges.
  • a cable splice closure comprises an elongated strip of flexible material having opposed edges. The strip is helically wound so that one of the opposed edges contacts the other opposed edge in interlocking engagement. The helically wound interlocked strip is conformable to various shapes upon twisting of the strip. A bonding material extends along the interlocked edges for bonding the edges together.
  • a principal advantage of the present invention is that a cable splice closure is sealed by fusion bonding the interlocked edges which are mechanically engaged.
  • the fusion bonding is accomplished by electromagnetic or resistive wire means while the mechanical connection provides support to form an elongated spiral bondline seal.
  • An additional advantage is that the helically wound interlocked strip can be made to conform to many different sizes of cable splices before sealing.
  • Fig. 1 is an isometric view illustrating an embodiment of a portion of a closure body of the present invention.
  • Fig. 2 is an enlarged partial isometric view illustrating an embodiment of the strip of the present invention.
  • Fig. 3 is another enlarged partial isometric view illustrating an embodiment of the strip of the present invention.
  • Fig. 4 is an enlarged partial end view illustrating an embodiment of the tongue and groove connection of the present invention.
  • Fig. 5 is an enlarged partial end view illustrating another embodiment of the tongue and groove connection of the present invention.
  • Fig. 6 is enlarged partial end view illustrating a further embodiment of the tongue and groove connection of the present invention.
  • Fig. 7 is an isometric view illustrating an embodiment of a bonding device used with the present invention.
  • Fig. 8 is an isometric view illustrating another embodiment of a bonding device used with the present invention.
  • Fig. 9 is an isometric view illustrating a further embodiment of a bonding device used with the present invention.
  • Fig. 10 is an isometric view illustrating an embodiment of a closure body of the present invention.
  • Fig. 11 is an isometric view illustrating another embodiment of a closure body of the present invention.
  • Fig. 12 is a partial cross-sectional view diagrammatically illustrating an embodiment of a threadably engaged double walled closure body of the present invention. Description of the Preferred Embodiment
  • a cable splice closure body is designated 10 and comprises an elongated strip 12 of flexible material having opposed edges 12a, 12b.
  • Strip 12 forms body 10 by being helically wound so that one of the opposed edges 12a contacts the other opposed edge 12b in interlocked engagement.
  • the interlocked edges 12a, 12b are relatively slidable so that body 10 is conformable to various shapes upon twisting of strip 12.
  • a cable splice (not shown) within body 10 is enclosed by the helically wound strip 12 which can be twisted so that an enlarged diameter portion 14 of body 10 can be reduced to a relatively smaller diameter end portion 16 wherein a known cable end seal 18 is sealingly seated and cables 20 are sealed therein.
  • groove member 24 is generally "U” shaped and includes a pair of flexible spring hooks 26, connected at a common base 28. Hooks 26 and base 28 define an enlarged cavity 24a in groove member 24 for receiving tongue member 22. Hooks 26 each include a lip 26a on an inside surface 30 of cavity 24a.
  • An interconnecting rib portion 32 is connected, at one end 32a, to groove member 24 and is substantially planar in cross-section. Rib 32 is connected, at another end 32b, to tongue member 22 which includes a flange 23 having a lance 36 extending therefrom. Lance 36 includes a shaft 36a and a head 36b having lips 36c.
  • a side 38 of strip 12 is substantially smooth and opposite side 40 of strip 12 includes ridges 42a, 42b, which are raised relative to planar rib portion 32 and are formed by groove member 24 and tongue member 22, respectively.
  • Flexible spring hooks 26 may be urged apart, Figs. 4 and 5, in response to head 36b of tongue member 22 being forced into cavity 24a.
  • the spring hooks 26 snap toward each other adjacent shaft 36a of lance 36, and lips 26a of spring hooks 26 engage lips 36c of head 36b, thus limiting disengagement of tongue member 22 and groove member 24.
  • cavity 24a is substantially oversized relative to head 36b, so that tongue member 22 seats in only a portion of groove member 24. This provides room in cavity 24a for the presence of added sealant material. Also, in Fig.
  • groove member 24 may include enlarged cavity 24a and also a secondary cavity 24b which is formed as an extension of cavity 24a in base 28. Cavities 24a and 24b openly communicate with each other. This provides substantially more room adjacent cavity 24a for the presence of added sealant material.
  • a bonding means generally designated 44
  • Fig. 5 it can be seen that an alternate bonding means, generally designated 44a, is provided in cavity 24a adjacent head 36b.
  • Fig. 6 it is shown that another alternate bonding means, generally designated 44b, is provided in cavity 24a adjacent head 36b and also between the interconnection of lance 36 and flexible hook 26.
  • the various bonding means 44, 44a which are responsive to either electrical stimulation or radio frequency waves can be provided to extend along interlocked edges 12a and 12b to bond tongue member 22 and groove member 24 together.
  • a bonding means is a round resistance wire 46, Fig. 7, connected to receive AC or DC and encased in a heat fusible material 48.
  • Another specific example of bonding means is a flat resistance wire 50, Fig. 8, also connected to receive AC or DC and encased in a heat fusible material 52.
  • a further specific example of such a bonding means is a wire 54, Fig. 9, which functions as an antenna to receive radio frequency waves, and encased in a heat fusible material 56 containing a susceptor material 58.
  • the bonding means 44b Fig. 6 comprise a bead or beads of suitable adhesive which can be provided to bond tongue member 22 and groove member 24.
  • Strip 12 may be helically wound to form body 10 as a tubular member 60, Fig. 10, having side 40 of strip 12 including raised ridges 42a, 42b form a helix on an outer surface 62 of tubular member 60.
  • Strip 12 may also be helically wound inverted to form body 10 as a tubular member 60a, Fig. 11, having smooth side 38 of strip 12 form an outer surface 62a and having side 40 of strip 12 including raised ridges 42a, 42b form a helix on an inner surface 64 of tubular member 60a.
  • the helix on outer surface 62 of tubular member 60, Fig. 12 may threadably engage the helix on inner surface 64 of tubular member 60a to form a combined double walled tubular member.
  • a further alternative is to form strip 12 of a dual material, Fig. 3, such that edges 12a, 12b are formed of a thermoplastic material, designated T, and interconnecting rib 32 between edges 12a, 12b, is formed of a softer, more pliable material, designated P, such as rubber, nylon, orlon, or the like.
  • Material selection for the closure of the present invention requires good bonding capabilities to provide proper sealing as well as providing resistance to contamination, moisture and pressure. Bonding of joints to be sealed involves bonding of the selected material to itself, to end seals, cables and to sealants which may be used. Since sealing is accomplished by heating, the selected material must also be suitably responsive to fusion bonding.
  • polyolefm or polyolefm elastomers are suitable and of that group, the flexible ethylene alphaolefin copolymer sold under the name ENGAGE by the Dow Chemical Company of Midland, Michigan, is preferred.
  • Material selection for the sealant of the present invention requires an affinity to produce satisfactory fusion bonding.
  • a sealant is used in the present invention there are several alternatives.
  • a suitable bond may in some instances be accomplished by resistance heating of abutting surfaces by the placement of a resistive wire at or near the abutting surfaces. Electrical stimulation of the wire will heat surrounding material sufficiently to bond all heated abutting surfaces, and with pressure applied through the curing process, suitable welds can be produced.
  • the resistive wire can be of stainless steel, or nickel-chromium or other suitable material and can be in the typical round wire form 46, Fig. 7, or a flat strip form 50, Fig. 8, and can be coated with a suitable sealant material 48, 52, respectively, such as polyethylene. Electrical stimulation of the wire will heat the surrounding sealant material 48, 52, and the abutting surfaces such as the tongue and groove to be sealed. All abutting surfaces can be sealed in this manner enhanced by the additional or surplus sealant material which will assist in providing suitable seals with pressure applied through the curing process.
  • a susceptor containing material 58 can be added to the sealant 56 which absorbs RF energy and transfers it into heat energy.
  • the wire 54 is preferably copper and functions as an antenna.
  • the heat produced causes the susceptor material 58 including a polyethylene or polyolefm elastomer binder 56 and the abutting surfaces to be sealed.
  • sealing is enhanced by the additional or surplus material which will assist in providing suitable seals with pressure applied through the curing process. While it is not necessary to discuss every possible iteration of combining sealant material, susceptor material and wire types, it is clear that sealing is enhanced in view of the foregoing.
  • the present invention provides environmental protection for communication and electrical cable splices and contacts.
  • Such cables typically utilize an outer jacket of polyethylene, polypropylene or an inclusive polymer to provide a protective barrier against moisture and other contamination.
  • the present invention provides an airtight, water tight, fully bonded closure which provides mechanical and environmental protection of communication and electrical cable splices and contacts by restoring cable sheath integrity. It is also easily adaptable to a wide range of splice bundle diameters, cable diameters and number of cables.
  • the present invention comprises continuous extruded strip 12, Figs. 1 and 2, having tongue member 22 and groove member 24 elements longitudinally extending along opposed sides or edges 12a, 12b of the strip 12, i.e.
  • the tongue portion is on one edge and the groove portion is on the other edge.
  • the edges 12a, 12b are pressed together to form an interlocking surface.
  • the continuous tongue and groove of the connection are relatively, slidably movable so that twisting the helically wound strip 12 in one direction enlarges the diameter of all or portions of the enclosure and simultaneously shortens its length. Conversely, twisting the helically wound strip 12 in the opposite direction decreases the diameter of all or portions of the enclosure and simultaneously increases its length.
  • diameter is used, it should be noted that circular, oblong and irregular cross-sections are attainable by the flexible, helically wound strip 12 of this invention.
  • the problem associated with bondline sealing which relates to confining melted material in place while exerting sufficient pressure to form the desired lengthwise seal upon cooling or curing, has been addressed by the unique tongue and groove arrangement of the present invention.
  • the female groove member 24 on one edge of the strip includes two spring-like hook members 26 which, along with an end wall, define the cavity 24a.
  • the groove member 24 includes a depth defined by the end wall which can be in a flat, circular or secondary cavity 24b form, such that when the male tongue member 22 is seated, it does not reach the end wall of the cavity since the cavity depth is not filled by the male tongue member 22.
  • the greater depth permits the inclusion of a continuous resistive wire extending along the cavity length.
  • the wire of either a round cross-section 46, Fig.
  • a flat strip 50, Fig. 8 is encased in a suitable thermoplastic or heat fusible material 48, 52, respectively, having a useful softening or melting temperature, such as low density polyethylene or an ethylene/alpha-olefin copolymer.
  • the wires can possibly be assembled into the groove during manufacture or can be later inserted.
  • the wires can be of stainless steel or nickel/chromium, or other suitable material.
  • the female groove member 24 can contain a copper wire 54, Fig. 9, encased in a suitable thermoplastic or heat fusible material 56 as described above, and containing susceptor composite flakes 58, i.e. , radio frequency power absorbing materials comprising a plurality of multilayered flakes made of thin film crystalline ferromagnetic metal layers, such as a NiFe alloy, stacked alternately with thin film dielectric layers, such as SiO.
  • susceptor composite flakes 58 i.e. , radio frequency power absorbing materials comprising a plurality of multilayered flakes made of thin film crystalline ferromagnetic metal layers, such as a NiFe alloy, stacked alternately with thin film dielectric layers, such as SiO.
  • This forms a susceptor composite coating including about 1 to 10 percent of susceptor composite flakes in a suitable binder such as polyethylene.
  • the use of susceptor composite flakes 58 provides a method of bonding two objects together, i.e.
  • the tongue member 22 and groove member 24 using radio frequency power at a frequency of about 5 to about 6000 MHz in the form of an oscillating magnetic field.
  • the field intersects the susceptor composite flakes 58 or susceptor composite binder 56 so that heat is generated, melting and fusing the coating and bonding the tongue member 22 and groove member 24 together.
  • low energy surface adhesive refers to an adhesive based on standard acrylic monomers with organo borane/amine complexes, and may include a polyurethane, an epoxy, or a poly aziri dine.
  • Another sealing method can be accomplished by utilizing a hot iron, or the like, not shown, applied to the outer surface of the helically wound enclosure body 10, Fig. 10, which could be rotated in the direction of the helix, following the ridges 42a, 42b, created when the mating edges are brought together.
  • This applied heat will cause the mating edges 12a, 12b, to soften, melt and flow into the enlarged cavity 24a adjacent the head 36b.
  • the springlike hook members 26 of the groove member 24, along with the tongue member 22 serve as a mechanical device providing support and pressure until the melted area is cooled and cured to form a fully bonded seam seal.
  • FIG. 11 An additional advantage and significant feature of the present invention, Fig. 11 , is the ability to invert the strip 180° (inside out), so that when the strip 12 is helically wound and the tongue and groove connections are made, ridges 42a, 42b, formed by the connections are on the inside of the winding.
  • a winding member 60 which has the ridges 42a, 42b, on the outside, and a winding member 60a which has the ridges 42a, 42b, on the inside can be threaded together, one over the other, so that a dual thickness enclosure results.
  • a dual wall enclosure seal is accomplished.
  • thermoplastic material such as polyethylene, polypropylene or an inclusive copolymer can be extruded in the form of a continuous strip.
  • the same extruded strip can contain a dual material formed by a dual extrusion process, so that the opposed edges 12a, 12b of the strip 12 which include male tongue and a female groove members 22, 24, respectively, can be formed from the above-mentioned thermoplastic material T.
  • center rib portion 32 of the strip between the edges can be formed of a softer, more pliable material P such as rubber, nylon, orlon, or the like. This arrangement would permit strip 12 to be made wider and still retain flexibility so as to be comfortably workable.
  • the principal advantage of the present invention is that a continuous extruded strip of thermoplastic material, having tongue and groove elements on opposed edges of the strip, can be helically wound. Upon winding, the mating tongue and groove elements alternate and become engaged to form a relatively movable interlocking mechanical engagement providing support and pressure to the interlock.
  • the strip Once the strip is wound to a comfortable working diameter so as to form an enclosure around the structure to be protected, the strip can be twisted in a circular or torsional motion which allows adjacent interlocked strips of the enclosure to conform to the structure within, which may be of varying tubular, or other circular or non-circular configuration.
  • the mating edges can be sealed by various means. For example, a low energy surface adhesive, heat sealing of the edges, electro-resistive heating and induction heating.
  • Utility of the invention allows the cable splice closure to form an air tight, pressure and moisture seal to external elements.
  • Basic features of the closure provide total seal integrity between the two main portions which comprise the closure body, end seal portions and the cables extending therethrough.
  • the use of a fusion bonded sealant provides for facilitated installation.

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  • Cable Accessories (AREA)

Abstract

Enveloppe d'obturation (10) pour épissure de câbles comprenant une bande allongée (12) composée d'un matériau flexible présentant des bords opposés (12a, 12b). Le bande (122) est enroulée hélicoïdalement de manière que l'un des bords opposé (12a) entre en contact avec l'autre bord opposé (12b) et les deux bords se bloquent l'un dans l'autre. La bande (12) enroulée hélicoïdalement et ainsi fixée peut être déformée par une torsion de la bande (12) pour s'adapter à diverses formes. Outre le blocage mécanique des bords, des moyens sont prévus pour sceller les bords (12a, 12b) par fusion. La fixation mécanique est réalisée par un ensemble languette (22) et rainure (24) dans lequel une languette (22) est introduite dans une rainure (24) surdimensionnée. Il reste ainsi assez d'espace dans la rainure (24) pour réaliser la fusion des bords (12a, 12b) de la bande (12) au moyen d'un matériau d'assemblage, afin de former une enveloppe étanche (10).
PCT/US1997/003620 1996-11-14 1997-03-05 Obturation en spirale helicoidale avec joints scelles Ceased WO1998021802A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU22000/97A AU2200097A (en) 1996-11-14 1997-03-05 Helical spiral closure with bondline sealing

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US74884996A 1996-11-14 1996-11-14
US08/748,849 1996-11-14

Publications (1)

Publication Number Publication Date
WO1998021802A1 true WO1998021802A1 (fr) 1998-05-22

Family

ID=25011187

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1997/003620 Ceased WO1998021802A1 (fr) 1996-11-14 1997-03-05 Obturation en spirale helicoidale avec joints scelles

Country Status (2)

Country Link
AU (1) AU2200097A (fr)
WO (1) WO1998021802A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006012593A1 (de) * 2006-03-16 2007-09-20 Tyco Electronics Raychem Gmbh Stützwendel und Verfahren zu dessen Herstellung
US7744977B2 (en) 2006-05-24 2010-06-29 Tyco Electronics Raychem Gmbh Support coil comprising a mechanical locking means and method for the production thereof
US8192816B2 (en) * 2006-05-24 2012-06-05 Tyco Electronics Raychem Gmbh Support coil with mechanical locking device and method for its manufacture
DE102012103040A1 (de) * 2012-04-10 2013-10-10 Nkt Cables Gmbh Stützwendel
CN115621968A (zh) * 2022-11-15 2023-01-17 新疆维吾尔自治区产品质量监督检验研究院 一种便捷式电缆接头

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1982001757A1 (fr) * 1980-11-14 1982-05-27 Johns Manville Objets tubulaires en plastique ameliores
EP0445490A1 (fr) * 1990-03-08 1991-09-11 Italco S.P.A. Ruban pour le revêtement de terminaisons de câbles à moyenne tension et d'isolations lisses
EP0488895A1 (fr) * 1990-11-29 1992-06-03 Societe Industrielle De Liaisons Electriques (Silec) Dispositif de protection d'un raccordement de câbles
WO1993010960A1 (fr) * 1991-11-27 1993-06-10 Minnesota Mining And Manufacturing Company Procede et article pour la liaison par micro-ondes de fermetures d'epissures

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1982001757A1 (fr) * 1980-11-14 1982-05-27 Johns Manville Objets tubulaires en plastique ameliores
EP0445490A1 (fr) * 1990-03-08 1991-09-11 Italco S.P.A. Ruban pour le revêtement de terminaisons de câbles à moyenne tension et d'isolations lisses
EP0488895A1 (fr) * 1990-11-29 1992-06-03 Societe Industrielle De Liaisons Electriques (Silec) Dispositif de protection d'un raccordement de câbles
WO1993010960A1 (fr) * 1991-11-27 1993-06-10 Minnesota Mining And Manufacturing Company Procede et article pour la liaison par micro-ondes de fermetures d'epissures

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006012593A1 (de) * 2006-03-16 2007-09-20 Tyco Electronics Raychem Gmbh Stützwendel und Verfahren zu dessen Herstellung
US7744977B2 (en) 2006-05-24 2010-06-29 Tyco Electronics Raychem Gmbh Support coil comprising a mechanical locking means and method for the production thereof
EP1860749A3 (fr) * 2006-05-24 2011-04-27 Tyco Electronics Raychem GmbH Support de ruban hélicoïdal comportant un verrouillage mécanique et son procédé de fabrication
US8192816B2 (en) * 2006-05-24 2012-06-05 Tyco Electronics Raychem Gmbh Support coil with mechanical locking device and method for its manufacture
DE102012103040A1 (de) * 2012-04-10 2013-10-10 Nkt Cables Gmbh Stützwendel
EP2650973A1 (fr) * 2012-04-10 2013-10-16 REHAU AG + Co Hélice dýappui
DE102012103040B4 (de) 2012-04-10 2024-11-14 Nkt Cables Gmbh Stützwendel mit Rastmittel und Verfahren zur Herstellung einer Stützwendel
CN115621968A (zh) * 2022-11-15 2023-01-17 新疆维吾尔自治区产品质量监督检验研究院 一种便捷式电缆接头

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