Coaxial Patents (Class 174/88C)
  • Patent number: 6160221
    Abstract: The screwed cable gland has at least one lower part, a pressing part, and a union nut, which are each traversed by a respective hole and are to be pushed over the cable. The lower part can be connected to a housing in an electrically conducting manner and can be axially tensioned with the union nut. The pressing part and the sealing insert form one unit, wherein the sealing insert is arranged in the union nut and reduces the cross section of its hole with increasing axial tension between the lower part and the union nut. The screwed cable gland is characterized by inexpensive manufacture and simple assembly.
    Type: Grant
    Filed: September 11, 1998
    Date of Patent: December 12, 2000
    Assignee: Agro AG
    Inventor: Richard Hablutzel
  • Patent number: 6156975
    Abstract: End moldings for high-voltage cables are described wherein the dielectric insulator of the cable is heated and molded to conform to a desired shape. As a consequence, high quality substantially bubble-free cable connectors suitable for mating to premanufactured fittings are made. Disclosed is a method for making the cable connectors either in the field or in a factory, molds suitable for use with the method, and the molded cable connectors, themselves.
    Type: Grant
    Filed: August 17, 1998
    Date of Patent: December 5, 2000
    Assignee: The United States of America as represented by United States Department of Energy
    Inventor: Lars D. Roose
  • Patent number: 6153830
    Abstract: A connector includes a connector body, a post member, and a fastener member. In one embodiment, the connector provides for coupling a coaxial cable having a center conductor, an insulator core, an outer conductor, and a sheath to a terminal device. A nut coupled to either the connector body or post member can be used on the connector to make the connection to the device. The post member has a cavity that accepts the center conductor and insulator core of a coaxial cable. An outer cavity is formed by the connector body and the post member such that the outer conductor and the sheath of a coaxial cable are positioned therebetween. The fastener member, in a pre-installed first configuration is movably fastened onto the connector body. The fastener member can be moved toward the nut into a second configuration in which the fastener member coacts with the connector body so that the connector sealingly grips the coaxial cable.
    Type: Grant
    Filed: August 2, 1997
    Date of Patent: November 28, 2000
    Assignee: John Mezzalingua Associates, Inc.
    Inventor: Noah P Montena
  • Patent number: 6147308
    Abstract: A heating cable assembly includes a connector having a sleeve, and a heat-absorbing electrically conductive core member within the sleeve. The assembly also includes a heating cable having an electrical resistance heating wire extending from the core member out a first end of the sleeve, and a water-proof, heat conductive, spirally fluted tube encasing the heating cable. According to one embodiment, the connector further includes an electrically conductive expansion joint extending from the core member opposite said heating wire. According to an additional embodiment, the assembly includes a weld connecting the spirally fluted tube to the first end of the sleeve.
    Type: Grant
    Filed: February 10, 1999
    Date of Patent: November 14, 2000
    Inventor: Daniel A. Santagata
  • Patent number: 6133532
    Abstract: A contact device for high-frequency cables including a front member (11) and a rear member (10). The rear member (10) is mounted on the high-frequency cable (1) and the front member (11) is brought in contact with an outer conductor (3) and an inner conductor (5) on the high-frequency cable (1) for transmission of high-frequency signals from the outer and inner conductor (3, 5) to the front member (11). The front member (11) and the rear member (10) are joined to a connector unit (42) in which the front member (11) and the rear member (10) are joined to a connector unit (42) in which the front member (11) is situated in a ready position (P) relative to the rear member (10), the said connector unit (42) can be mounted on the high-frequency cable (1) such that the cable (1) protrudes into the rear member (10).
    Type: Grant
    Filed: February 10, 1999
    Date of Patent: October 17, 2000
    Assignee: Teracom Components AB
    Inventors: Hans Lundback, Per Thorsson
  • Patent number: 6057510
    Abstract: An insulation displacement connection device for coaxial cables includes a conductive housing having a cable connection stub and a device for insulation displacement connection of outer and inner cable conductors. The stub has at least one recess formed therein extending crosswise to a center axis and being open toward the outside, for introducing the device. The device cuts through an outer insulating cable sheath and contacts the outer cable conductor upon being plugged into the recess. The device is self-clampingly retained in the recess in a plugged-in state. An insulation displacement connection device for electrically joining a first electrical conductor to a second electrical conductor includes a slit being formed in the first conductor and being constructed and dimensioned with a width being at least partially less than the diameter of the second conductor.
    Type: Grant
    Filed: September 28, 1995
    Date of Patent: May 2, 2000
    Assignee: Siemens Aktiengesellschaft
    Inventor: Edgard Acke
  • Patent number: 6040527
    Abstract: A cable joint for inter-connecting two power cables (1, 2) in a junction body (3) which is made water impervious and is electrically shielded by a two part metallic member (14; 15, 16) that is connected to the lead sheaths or metallic screens (8, 9) of the power cables. The shielding is however interrupted by a shield break (17) located next to the junction body, and a grounding connection and/or cross-bonding cable is electrically connected to each part of the member, i.e. at both sides of the shield break. This cable may be of the 2-single-core or of the coaxial type and all the grounding earthing connections and/or cross-bonding are concentrated at one end of the cable joint. An insulated conductor (20) runs from one end to the other of the cable joint over the junction body (3) but inside the metallic member.
    Type: Grant
    Filed: November 18, 1998
    Date of Patent: March 21, 2000
    Assignee: Alcatel
    Inventors: Jo De Buyst, Jozef Renier Catharina Cardinaels
  • Patent number: 6025560
    Abstract: A high-voltage cable joint for interconnecting terminus of conductors (4; 5) of a first (1) and a second (2) power cable, each cable having a metallic screen (10; 11) separated from the conductor by an insulation layer (6; 7) and a semi conductive layer (8/9). The cable joint includes a junction body (3) that is an insulated box wherein the conductors are interconnected. The metallic screen (10) of the first power cable (1) is electrically connected to one end of a first metallic tubular shielding member (19) of which the other end extends beyond the junction body. This member (19) is separated from the junction body by an insulation shield-break sleeve (22) and both have an end overhanging beyond the end of the junction body.
    Type: Grant
    Filed: November 18, 1998
    Date of Patent: February 15, 2000
    Assignee: Alcatel
    Inventors: Jo De Buyst, Jozef Renier Catharina Cardinaels
  • Patent number: 5998736
    Abstract: A wiring system by which a high voltage AC current is transported from a transformer to a neon light in a manner to reduce arcing and therefore fire potential, employing a flexible cable having a central current carrying electrical conductor, a symmetrical layer of insulation concentrically surrounding the central conductor, and a symmetrical circumferential layer of shielding conductor surrounding the layer of insulation, and at least one connector for connecting the flexible cable to another piece of equipment, the connector providing a central electrical conductor and a concentric shield grounded to the piece of equipment so that a symmetrical relationship of a central current carrying conductor within a concentric conductive shield providing a concentric and substantially uniform electrostatic field and continuity of ground is maintained throughout the system.
    Type: Grant
    Filed: January 20, 1998
    Date of Patent: December 7, 1999
    Assignee: Relight America, Inc.
    Inventor: Roger L. Rumsey
  • Patent number: 5965847
    Abstract: A shield layer 13 of a shielded cable W and a metal shell 30 are electrically connected via a connection member 40. This connection member 40 is tubular and includes a receiving portion 41 which is insertable under the shield layer 13, a shield layer fastening portion 42 for fastening the shield layer 13 to the receiving portion 41, and a contact portion 43 to be brought into pressing contact with the inner circumferential surface of the metal shell 30. The portions 41 to 43 are integrally or unitarily formed. With this construction, if the shield layer fastening portion 42 is fastened after the receiving portion 41 is inserted under the shield layer 13, the shield layer 13 is tightly held between the receiving portion 41 and the fastening portion 42. As a result, the shield layer 13 and the metal shell 30 are connected electrically even if the rigidity of an insulation layer 12 is reduced.
    Type: Grant
    Filed: November 7, 1997
    Date of Patent: October 12, 1999
    Assignee: Sumitomo Wiring Systems, Ltd.
    Inventors: Tsutomu Tanaka, Nori Inoue
  • Patent number: 5942730
    Abstract: A threaded cable joint for a cable having a cable shield enclosing an internal conductor region. The cable joint, which may be connected to a housing, has a connection piece and an outer pressure element. The outer pressure element is screw-connected to the connection piece, and acts on a seal to cause the seal to abut against the cable as the cable passes through the threaded cable joint. A number of shield contact elements are arranged within the connection piece, and in electrical contact with the connection piece. The shield contact elements include conductive contact bows that extend in the direction of the passed-through cable for contacting the cable shield at a first contact point, thus forming a direct electrical connection between the cable shield and the connection piece.
    Type: Grant
    Filed: August 14, 1997
    Date of Patent: August 24, 1999
    Assignee: U.I. Lapp GmbH & Co. KG
    Inventors: Manfred Schwarz, Rolf Drotleff
  • Patent number: 5917153
    Abstract: The RF-proof cable penetration having a seal (9) for shielded cables, having a tubular threaded stub (7) which is to be inserted into a bore, and a locking nut (10) which is to be tightened onto the threaded stub, and having an annular clamping disk (8) which is forced, by a pinch seal (9) which is to be pressed on by the locking nut (10), against an annular shoulder on the threaded stub (7), is equipped according to the invention with a shielding sleeve (4) which has at least one radially projecting shoulder (6) at the front of the inner end. Furthermore, a stamping sleeve (5) is present which is to be pushed over the shielding sleeve (4) on the outside of the cable shield (3).
    Type: Grant
    Filed: September 11, 1997
    Date of Patent: June 29, 1999
    Assignee: Jacob GmbH
    Inventor: Arnold Geroldinger
  • Patent number: 5877452
    Abstract: An end connector for coaxial cable, attached thereto by a compression crimp urging engagement between a threaded inner wall of an outer sleeve of the connector and utilizing a deformable O-ring captively positioned between a backside of a ground conductor plate and an inner edge of an inwardly flanged shoulder portion of a connector nut. Upon connection of the connector of the present invention to its mating connector, pressure applied to the ground plate platform deforms the O-ring, thereby urging improved electrical contact between ground plate platforms of respective connectors while preventing introduction of unwanted contaminants into the conductor.
    Type: Grant
    Filed: March 13, 1997
    Date of Patent: March 2, 1999
    Inventor: David E. McConnell
  • Patent number: 5750929
    Abstract: A terminal assembly for a CATV RF circuit is located on a circuit board with a slot open towards a port through which projects a coaxial cable pin. The board is located below the pin and the slot allows travel of the board vertically therepast. A conducting blade connected to RF circuitry on the board projects over and parallel to the pin and a yoke, slidable on the blade, slides from a retracted position where the board may be lifted past the pin and an extended position, where it encircles the pin and blade and clamps them together.
    Type: Grant
    Filed: October 16, 1996
    Date of Patent: May 12, 1998
    Assignee: J. E. Thomas Specialties Limited
    Inventors: Robert L. Romerein, David B. Crowhurst, Christopher A. Allinson
  • Patent number: 5722841
    Abstract: A ground member, and method of forming same, is provided wherein a ground strap is electrically attached to the shield layer of a coaxial cable. To this end, a conductive ground strap is sandwiched between a sleeve and the shield layer. The sleeve may be in the form of a conductive sleeve which is crimped to the coaxial cable. A connector module containing such a ground member is also provided.
    Type: Grant
    Filed: October 16, 1996
    Date of Patent: March 3, 1998
    Assignee: Osram Sylvania Inc.
    Inventor: John O. Wright
  • Patent number: 5602365
    Abstract: A duplexer, useable to interlink the receiver, transmitter and antenna units of a microwave transmit/receive system takes the form of a "T" junction coupling device and three coaxial lines extending from junction ends at such device to coaxial end connectors on the ends of such lines away from such device. The "T" junction coupling device comprises a copper block having a central cavity and three bores leading into such cavity, a copper cap to close the top of such cavity, a copper disc disposed in said cavity away from its walls and containing a central space and three passages leading into said spaces and corresponding to said bores, and three brass ferrules for such lines. The ferrules are seated on the junction ends of such lines and are soldered to their outer conductors and are pressed fitted into the three bores. The inner conductors are received in the three passages in the disc and are all soldered thereto.
    Type: Grant
    Filed: June 22, 1994
    Date of Patent: February 11, 1997
    Assignee: Lucent Technologies Inc.
    Inventors: Omar J. Bobadilla, John M. DelColle, Andy Y. Ng, Gary D. Stuck
  • Patent number: 5579575
    Abstract: A method and apparatus of forming a solder connection between a plurality of elongate bodies, comprises:(i) forming an initial connection between the elongate bodies by inserting them into an induction heatable connecting element of a connector, the connector comprising a dimensionally heat-recoverable sleeve and, retained within the sleeve, the connecting element and a solder insert that is in thermal contact with the connecting element; and(ii) heating the connector (a) by subjecting the connecting element to an alternating magnetic field so that it is heated by induction thereby melting the solder insert, and (b) subjecting the sleeve to hot air and/or infrared radiation, thereby causing the sleeve to recover.The apparatus for applying heat to an elongate connector, comprises a first heat source which comprises an induction coil, and a second heat source arranged to generate hot air or infrared radiation.
    Type: Grant
    Filed: September 23, 1994
    Date of Patent: December 3, 1996
    Assignee: Raychem S.A.
    Inventors: Alain Lamome, Jacques Delalle, Sylvain Briens
  • Patent number: 5508475
    Abstract: This invention involves an apparatus for terminating conduit, cable, and braided bundle in which the termination is accomplished with an interference fit between a collar and an end fitting. Once assembled, the conduit, cable, or braided bundle is compressed between the collar and the end fitting such that the final assembly can withstand the required level of axial and transverse force for the application, but not so much that the conduit, cable, or braided bundle loses its structural integrity.
    Type: Grant
    Filed: August 22, 1994
    Date of Patent: April 16, 1996
    Assignee: Transtechnology Corporation
    Inventors: Stanley J. Profiri, Michael D. Williams
  • Patent number: 5455548
    Abstract: The rigid coaxial transmission line disclosed herein is made up of multiple sections having outer conductors which are joined together at flanges and make up a desired length. Rather than being of equal length, the sections vary in length progressively to prevent the reflections caused by the flanges from accumulating at any frequency within the band at which the transmission line is to operate.
    Type: Grant
    Filed: February 28, 1994
    Date of Patent: October 3, 1995
    Assignee: General Signal Corporation
    Inventors: Brett J. Grandchamp, Cole N. Plummer, Richard I. Bibber, Charles D. Brown
  • Patent number: 5432300
    Abstract: This invention aims to facilitate attaching and positional correction of a protecting member for an unshielded section on an end portion of a shielding electric cable 1 and to enhance flexibility of processes of working and wiring the cable 1 and flexibility of a wiring posture of the cable 1. A protecting construction for an end portion of a shielded electric cable 1 comprises: an unshielded section on the end portion of the cable; a flexible and insulative protecting tube 10 having a shielding layer 8 on the interior thereof, the protecting tube 10 being provided with a slit 7 along an axial direction so that the tube 10 can be opened and closed in a peripheral direction, the protecting tube 10 being mounted through the slit 7 on the unshielded section on the end portion of the cable 1; and a tape 11 wound around the protecting tube 10 to secure it (10) to the end portion of the cable 1. The slit protecting tube 10 forms a protecting member for the unshielded section.
    Type: Grant
    Filed: August 13, 1993
    Date of Patent: July 11, 1995
    Assignee: Sumitomo Wiring Systems, Ltd.
    Inventors: Atsushi Fujisawa, Isao Akasaka, Hiroyuki Hamada
  • Patent number: 5432301
    Abstract: An electrical cable has ground wires for grounding or shielding the interior of the cable. Segments of the wires project from the cable and are uninsulated. A clamp for fixing the cable and connecting the ground wires to ground includes a plastic insulating sleeve which is slipped over the cable. The sleeve has an axial extension at one end and clamping fingers at the other end. The extension is provided with a resilient, generally annular circumferential projection and the sleeve is placed on the cable with the extension adjacent the uninsulated wire segments. The latter are bent onto the extension so as to overlie the projection. The extension and its overlying wire segments are inserted in an externally threaded, electrically conductive clamping collar. The internal diameter of that part of the clamping collar which surrounds the projection and its overlying wire segments is smaller than the outer diameter of the projection and its overlying wire segments.
    Type: Grant
    Filed: November 12, 1993
    Date of Patent: July 11, 1995
    Assignee: Anton Hummel Verwaltungs GmbH
    Inventor: Peter Gehring
  • Patent number: 5418330
    Abstract: An effective grounding of electrical equipment, electrical cables, housings, and the like, is accomplished by connector lugs that are initially formed as an integral part, for example, of a connecting sleeve that surrounds a protective casing or an envelope of a cable in a crimping manner. The lugs are only bent out of the sleeve or housing portion or the like when needed. A grounding conductor is then secured to the lug, for example, by a screw connection or by a plug-in connection or the like. The present lugs may be incorporated in all systems that are provided for protection against surge currents or excessive voltages produced by a thunderstorm, especially in a vehicle or a craft, e.g. an aircraft.
    Type: Grant
    Filed: April 30, 1993
    Date of Patent: May 23, 1995
    Assignee: Deutsche Aerospace Airbus GmbH
    Inventor: Peter Rook
  • Patent number: 5402566
    Abstract: A machine and method are disclosed for attaching a coaxial connector to the end of a coaxial cable. The machine seats the cable end having a preassembled contact into the connector housing, latching the contact in place, then conducts a pull test to verify proper latching. The jaws that grip the cable during insertion of the contact and pull testing are used to push the ferrule over the braided signal conductor prior to crimping the ferrule. A single air cylinder is used, at a relatively low pressure, to seat the contact and at a relatively high pressure to seat the ferrule. A constant force return spring is used to apply a predetermined test force to the jaws during the pull test. A high voltage test may be conducted at two points in the operating cycle.
    Type: Grant
    Filed: April 4, 1994
    Date of Patent: April 4, 1995
    Assignee: The Whitaker Corporation
    Inventor: Alden O. Long
  • Patent number: 5401173
    Abstract: The coaxial connector disclosed herein accommodates differential expansion between inner and outer conductors in a multi-section run of coaxial transmission line by utilizing a coupler assembly which connects adjacent inner conductors, one of the inner conductors being fixedly connected to the coupler with axial movement being permitted with respect to the other inner conductor. Electrical connection between the coupler and the movable conductor is established at a single axial position by an annular conductive spring member while longitudinal alignment is maintained over the rest of the length of the coupler by insulating rings set into annular grooves. A tubular shield extends from the coupler over the adjacent end of the movable inner conductor without electrical contact. The axial length of the shield is larger than the differential expansion which occurs between inner and outer conductor sections.
    Type: Grant
    Filed: February 28, 1994
    Date of Patent: March 28, 1995
    Assignee: General Signal Corporation
    Inventors: Brett J. Grandchamp, Cole N. Plummer, Richard I. Bibber, Charles D. Brown
  • Patent number: 5371322
    Abstract: A coupling of severed antenna wires is arranged to include a heat shrink tube having low temperature solder core arranged to secure respective first and second cable antenna wires together, wherein a metallic mesh connecting tube is arranged to electrically interconnect first and second cable mesh shields. An outer tubular insulative tube of flexible construction is arranged to surround the abutting end portions of the first and second antenna cables joined together.
    Type: Grant
    Filed: March 15, 1993
    Date of Patent: December 6, 1994
    Inventor: Eugene D. Selmeski
  • Patent number: 5347090
    Abstract: A method for connecting the screen of at least one screened electrical cable to an electrical link wire includes stripping insulation from the cable and the link wire, coating at least one of the stripped parts of the cable and of the link wire to be connected with an electrically conductive adhesive, after which the parts to be connected are placed facing each other. A tape of heat-shrinkable insulating material is then wound around the parts, and heat-shrunk to form the desired connection.
    Type: Grant
    Filed: October 29, 1992
    Date of Patent: September 13, 1994
    Assignee: Societe Anonyme dite: Aerospatiale Societe Nationale Industrielle
    Inventor: Leon G. Cerda
  • Patent number: 5341116
    Abstract: An RF expansion joint is presented herein for connecting first and second axially spaced tubular conductor sections, having opposed free ends, together as the sections expand and contract with temperature variations and for providing passage of RF energy at a desired operating frequency between the sections. The joint includes an insulator sleeve which is received by the first section with the sleeve having a passageway extending longitudinally therethrough. An electrically conductive stub having proximal and distal ends is mounted to the free end of the second conductor section and extends into the passageway of the sleeve so as to be slidably received thereby. The distal end of the stub extends beyond the sleeve sufficient that the distal end is spaced inwardly from the inner wall of the first conductor section presenting essentially an open circuit to passage of RF energy.
    Type: Grant
    Filed: December 28, 1992
    Date of Patent: August 23, 1994
    Assignee: Harris Corporation
    Inventors: William A. Kerkhoff, Rex L. Niekamp
  • Patent number: 5286921
    Abstract: An electrical cable comprises a central conductor core protected by an intermediate sealing sheath of insulating material. The intermediate sheath is surrounded by armoring and the armoring by an outer sealing sheath of insulating material. The cable includes an electrical joint in its central core. The outer and intermediate sheaths and the armoring are cut and removed over the joint. The cable further comprises an over-molding forming a sleeve around the joint and extending over the outer sheath on either side of the joint. The armoring and the outer sheath are cut and removed over a portion of length greater than the portion over which the intermediate sheath is removed, thereby defining, on either side of the joint, a shoulder and a step between the intermediate sheath and the outer sheath. The over-molding engages snugly over the shoulders and the steps to form a watertight seal therewith.
    Type: Grant
    Filed: June 29, 1992
    Date of Patent: February 15, 1994
    Assignee: Filotex
    Inventors: Michel Fontaine, Patrick Rofidal
  • Patent number: 5283392
    Abstract: An electric power cable line is arranged in which the insulating layer is increased to a greater thickness at two end portions of each cable than a thickness at the other or center portion of the same. Since the insulating layer is increased in thickness at the end portions of the cable, thus an electrical stress exerted on the overall layer construction of the end portions is lowered. Hence, the dielectric strength of the end portions of the cable becomes high and the power cable line will thus be increased in the operational reliability.
    Type: Grant
    Filed: April 3, 1992
    Date of Patent: February 1, 1994
    Assignee: Fujikura Ltd.
    Inventors: Hiroto Ooshima, Michio Takaoka, Hisao Sakaguchi
  • Patent number: 5241135
    Abstract: A brass strap is utilized as a common grounding bar for the shields of a plurality of coaxial cables. The individual coaxial cables pass through holes in the common grounding bar, and the inner conductors are connected to the pins of a printed circuit board connector.
    Type: Grant
    Filed: December 13, 1991
    Date of Patent: August 31, 1993
    Assignee: The Boeing Company
    Inventor: Barry A. Fetzer
  • Patent number: 5230640
    Abstract: The invention relates to a connecting device (200) to equip an end of an electric cable (100), including a multilayer sleeve having an axis (202) and having an insulating intermediate layer (204) interposed between two layers suitable for ensuring the guiding of an electric field.According to the invention, only the end or ends (207) of the sleeve designed to cooperate with a cable end are in a state of radial expansion such that they present an inside diameter that is greater than the outside diameter of the corresponding cable end and which will be less than this outside diameter once retraction of the said ends of the sleeve has been brought about.The invention also relates to a process for mounting this device on the cable or cables.
    Type: Grant
    Filed: March 9, 1992
    Date of Patent: July 27, 1993
    Assignee: Cables Pirelli
    Inventor: Laurent Tardif
  • Patent number: 5217392
    Abstract: A splice connector (10) includes first and second outer shells (20,50) which are press fit together and secure therewithin an inner dielectric sleeve (80) defining a subassembly (12). Inner contacts (100,110) are terminated onto inner conductors of coaxial cables (160,170) and insertable into a bore (82) of the inner sleeve (80) and mate therewithin during assembly. Inner ferrules (120,140) are placed over the outer jackets of the cables, lengths of the Outer jacket (162,172) are removed and the shielding braid (164,174) folded back over forward portions (128,148) of ferrules (120,140), and the ends of the cables are inserted into large recesses (28,58) of the subassembly (12). The annular flanges (30,60) of the outer shells (20,50) defining the large recesses are then crimped onto the ferrule forward portions (128,148) carefully but firmly compressing the shielding braids (164,174) between the flange and ferrule surfaces to define an electrical grounding connection and also forming a splice joint (14).
    Type: Grant
    Filed: November 13, 1992
    Date of Patent: June 8, 1993
    Assignee: The Whitaker Corporation
    Inventor: Robert C. Hosler, Sr.
  • Patent number: 5194692
    Abstract: A cable coupling, particularly for data buses, includes a transformer and resistors to which the cables are directly wired. The components and all electrical connections are enclosed in a heat shrinkable tubing or sleeve filled with liquid encapsulant. Upon application of heat, the tubing shrinks causing the encapsulant to fill all voids between components. The encapsulant is then cured to provide an uncased coupling assembly which protects the components and electrical connections from breakage, while eliminating the need for a separate rigid housing. An overbraided shield and environmental seal may subsequently be added to provide further protection for the coupling.
    Type: Grant
    Filed: June 12, 1992
    Date of Patent: March 16, 1993
    Assignee: Amphenol Corporation
    Inventors: David O. Gallusser, James B. LeBaron
  • Patent number: 5185500
    Abstract: An inner conductor contact for connecting one end of a braided inner conductor of a coaxial cable with one end of an inner conductor of a coaxial plug, with the inner cable conductor enclosing a core which is retracted relative to the end of the inner cable conductor, includes a support element insertable in the inner cable conductor and having the same diameter as the core. The support element is adapted for connection with the core at the core-near side thereof via a bolt and with the inner plug conductor at the core-distant side thereof by means of a prolongation which is connected to the support element via a conical shoulder and thus is of smaller diameter than the support element. The part of the inner cable conductor extending along the shoulder and prolongation is surrounded by a metal bushing which receives the respective end of the inner plug conductor to provide the electric connection between the inner cable conductor and the inner plug conductor.
    Type: Grant
    Filed: June 25, 1991
    Date of Patent: February 9, 1993
    Inventor: Georg Spinner
  • Patent number: 5140746
    Abstract: An apparatus and process for splicing electrical wires that are to be exposed to an adverse environment. The apparatus includes a connector, an insulating sleeve adapted to retain the connector, and an encapsulant. The encapsulant, which is disposed within the insulating sleeve, has a cone penetration value of 100 to 350 (10.sup.-1 mm) and an ultimate elongation of at least 200%.
    Type: Grant
    Filed: August 21, 1989
    Date of Patent: August 25, 1992
    Assignee: Raychem Corporation
    Inventor: Christian A. M. Debbaut
  • Patent number: 5115563
    Abstract: A method of assembling an electrical connector that includes an outer conductor body, an inner conductor and a resilient and deformable insulating sleeve. The method includes providing a bore in the rigid outer conductor body having an inwardly directed substantially annular ridge extending therefrom defining a minimum bore diameter of the outer connector body. A bore is provided in the insulating sleeve along with a substantially annular recess in the outer surface of the sleeve. The maximum diameter of the insulating sleeve is provided greater than the minimum bore diameter of the outer conductor body when the insulating sleeve is at a rest position. The next step is inserting the insulating sleeve into the bore of the rigid outer conductor body to a position in which the rigid outer conductor body ridge is in alignment with the insulating sleeve recess.
    Type: Grant
    Filed: November 7, 1990
    Date of Patent: May 26, 1992
    Assignee: Microwave Development Laboratories, Inc.
    Inventor: Ronald A. Wilson
  • Patent number: 5115105
    Abstract: An arrangement for shielding a date bus coupler includes an overbraided shield electrically connected to each of the outer braids of the bus cables coupled by the coupler. The overbraided shield prevents shielding discontinuities at the terminations of the cables to the coupler.
    Type: Grant
    Filed: February 21, 1990
    Date of Patent: May 19, 1992
    Assignee: Amphenol Corporation
    Inventors: David O. Gallusser, James B. LeBaron
  • Patent number: 5028742
    Abstract: A device for connecting the grounding shield layer of a cable in a splice connection. A flat strap, such as a mesh of metallic wires, is wrapped at least 270.degree. around the shield layer. The ends of the strap or braid are folded over, forming two generally parallel tails. The central portion of the braid is secured to the shield with a constant force spring, and the free ends of the braid are fastened to the shield layer on the opposite side of the splice. A second braid may be used in a similar manner to bridge the connection across the splice. By providing two tails emanating from a single braid, current surges in the shield layer are divided along two current paths, reducing current density and minimizing failures in the cable shield connection.
    Type: Grant
    Filed: March 20, 1990
    Date of Patent: July 2, 1991
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Dean E. Redman
  • Patent number: 5015805
    Abstract: In providing a coaxial cable having reinforcing strands with a Kellems grip onnector, a length of the outer sheath is initially removed to expose the core, reinforcing strands and metallic braid. The exposed strands are formed into a multiplicity of bundles which are initially folded away from the end of the cable, and a metallic washer is placed over the exposed core and conductively bonded to the metallic braid. A Kellems grip connector having a connector element and a cylindrical mesh compression sleeve is inserted onto the core, and the sleeve extends over the washer and the strands. The washer is conductively connected to the connector of the Kellems grip connector which is spaced closely thereto. The bundles of strands are pulled outwardly through peripherally spaced openings in the mesh sleeve and looped about the intersections of the wires of the sleeve adjacent the connector.
    Type: Grant
    Filed: March 29, 1990
    Date of Patent: May 14, 1991
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Dennis M. Beckloff, David L. Culberston
  • Patent number: 4995838
    Abstract: A plurality of terminals already disposed in a housing of an electrical connector, include solder tails extending rearwardly from the housing each of which has a thin foil-like substrate having a layer of magnetic material bonded intimately onto an outer surface thereof, so that respective wire ends may be placed therealong with solder preforms within lengths of heat recoverable tubing may be placed therearound and a high frequency current induced in the magnetic layer of the substrate which then generates thermal energy sufficient to melt the solder and shrink the tubing forming terminations between the wires and the terminals and simultanously sealing the terminations. The magnetic material of the substrate may be nickel-iron alloy, which may comprise the foil or which may be clad to a brass layer of the foil, which is then soldered to a brass solder tail layer.
    Type: Grant
    Filed: July 27, 1989
    Date of Patent: February 26, 1991
    Assignee: AMP Incorporated
    Inventors: Kenneth N. Ayer, James P. Scholz
  • Patent number: 4965411
    Abstract: A splice for joining the armoring of two wire-armored cables (1, 2). The armoring is clamped between conical parts (5, 9; 6, 10) at each cable end. Each inner conical part (5, 6) is integral with a flange (7, 8) bolted to one of two similar flanges (13, 14) fixed to opposite ends of a generally tubular flexible assembly itself constituted by three layers of metal wires. The innermost first layer (22) is wound helically. The other two layers (19, 20) are wound with substantially equal and opposite pitches. The inside diameters of the first layer and of the circular openings in each of the two flanges (13, 14) fixed thereto are such that the flexible assembly is capable of sliding at one of its ends over at least one of the cables to be connected after its armoring layers have been removed, and at its other end over the splice (21) between the cables themselves. The invention also provides a method of making the splice.
    Type: Grant
    Filed: June 21, 1989
    Date of Patent: October 23, 1990
    Assignee: Societe Anonyme dite : Les Cables de Lyon
    Inventor: Gilles Bruneval
  • Patent number: 4938781
    Abstract: A connection is made between inner and outer conductors leading to electrodes to be used for the generation of shock waves for the contact free comminution of concrements (lithotripsy) whereby the inner conductor ends in a tip element and is surrounded by an electrically insulating synthetic sleeve, while the outer conductor is likewise provided with a tip element which is held by a cage that extends from the outer conductor proper; the outer conductor is provided with a plurality of annular grooves and as the metal sleeve is inductively heated synthetic material from an originally underformed insulating sleeve flows into the groove such that an axially immobile connection obtains between the thus inter connected conductors to, thereby, indirectly maintain the desired and gauged spacing between the electrode tip elements.
    Type: Grant
    Filed: April 25, 1988
    Date of Patent: July 3, 1990
    Assignee: Dornier System GmbH
    Inventor: Klaus Pimiskern
  • Patent number: 4920643
    Abstract: A method of assembling an electrical connector that includes an outer conductor body, an inner conductor and a resilient and deformable insulating sleeve. The method includes providing a bore in the rigid outer conductor body having an inwardly directed substantially annular ridge extending therefrom defining a minimum bore diameter of the outer conductor body. A bore is provided in the insulating sleeve along with a substantially annular recess in the outer surface of the sleeve. The maximum diameter of the insulating sleeve is provided greater than the minimum bore diameter of the outer conductor body when the insulating sleeve is at a rest position. The next step is radially compressing the insulating sleeve to a smaller diameter than at the rest position thereof. Next is inserting the insulating sleeve, while at least partially compressed, into the bore of the rigid outer conductor body to a position in which the rigid outer conductor body ridge is in alignment with the insulating sleeve recess.
    Type: Grant
    Filed: September 26, 1988
    Date of Patent: May 1, 1990
    Assignee: Microwave Development Laboratories
    Inventor: Ronald A. Wilson
  • Patent number: 4879807
    Abstract: A method of forming a sealed connection to a coaxial cable, preferably splicing two or more coaxial cables comprises:(a) forming a connection between the central conductor e.g. a solder or crimp connection;(b) positioning and recovering a heat shrinkable sleeve over the connection, the sleeve containing a shield portion for connecting the shield of the coaxial cables and being provided with quantities of sealing material which will extend beyond the ends of the sleeve after recovery; and(c) recovering a further heat shrinkable sleeve over the connection. Further sealing elements are provided with fuse with the sealing material associated with the other sleeve to form a barrier against ingress of moisture to the electrical connection.The method is particularly suited to the formation of connections that will be subjected to large changes in ambient pressure as may be experienced in aircraft.
    Type: Grant
    Filed: June 2, 1988
    Date of Patent: November 14, 1989
    Assignee: Raychem Pontoise S.A.
    Inventor: Philippe Roucaute
  • Patent number: 4852252
    Abstract: A plurality of terminals already disposed in a housing of an electrical connector, include solder tails extending rearwardly from the housing which have a thin layer of magnetic material deposited on an outer surface thereof, so that respective wire ends may be placed therealong with solder preforms within lengths of heat recoverable tubing may be placed therearound and a high frequency current induced in the magnetic layer which then generates thermal energy sufficient to melt the solder and shrink the tubing forming terminations between the wires and the terminals and simultaneously sealing the terminations. The magnetic material may be nickel-iron alloy clad to a brass solder tail layer. The thermal energy is generated in an amount necessary to raise the temperature of the magnetic layer to its Curie temperature for the given frequency used and maintain that temperature.
    Type: Grant
    Filed: November 29, 1988
    Date of Patent: August 1, 1989
    Assignee: AMP Incorporated
    Inventor: Kenneth N. Ayer
  • Patent number: 4842438
    Abstract: Method for joining thermoplastic cores having spaced, longitudinal surface grooves for receiving optical fibers or electrical wires. A heat shrinkable plastic sleeve is applied over the end of one of the cores. A piece of a core selected so that the ends of the grooves match, at each end, the grooves of the cores to be joined, is inserted between the ends of the cores in abutting relation with the cores, and malleable metal elements, longer than the piece and having the cross-sectional shape of the grooves are inserted in the grooves of the piece with the ends thereof in the grooves of the cores. The sleeve is slid over the elements-piece assembly and heated so that it shrinks therearound, so that the plastic of the piece and the cores is softened and the grooves conform to the shape of and embed the elements and so that the ends of the piece fuse with the ends of the cores.
    Type: Grant
    Filed: April 3, 1987
    Date of Patent: June 27, 1989
    Inventors: Bruno Bortolin, Enrico Dotti
  • Patent number: 4778948
    Abstract: An arrangement for forming a joint between electrical cables comprises a connector arrangement, e.g. a crimp connector, a fusible block capable of being positioned to enclose the connector and a heat-shrinkable sleeve having a recovery temperature at least 10.degree. C. above the melting point of the fusible block. Preferably the fusible block is formed from a number of interlocking component parts. The arrangement is particularly suitable for forming joints between submarine cables, and may include a tubular shield portion for connecting the shields and shielded cables.
    Type: Grant
    Filed: July 9, 1987
    Date of Patent: October 18, 1988
    Assignee: Raychem Limited
    Inventors: Anthony R. L. Fitch, Evan Jarrett
  • Patent number: 4776086
    Abstract: A microwave collinear antenna array applicator for in situ or in vivo treatment of tumors and/or other materials by hyperthermia is disclosed. The array consists of a plurality of harmonically related resonant coaxial antenna elements connected electrically in series to provide uniform heating along the entire length of the array. At the distal end of the array, a resistor may be provided at the inner conductor for steering the heating pattern. At the proximal end of the array, an impedance matching dielectric structure is provided to enable maximum power transfer to the array and to minimize stray leakage currents along the outside of the coaxial transmission line. The array may be made longer or shorter without changing frequency and therefore, depth of penetration by simply adding or subtracting half-wave resonant elements or sections of coaxial transmission line. A lossy sleeve member may be provided around the applicator to provide a localized source of heat.
    Type: Grant
    Filed: September 24, 1987
    Date of Patent: October 11, 1988
    Assignee: Kasevich Associates, Inc.
    Inventors: Raymond S. Kasevich, James F. McQueeney, Ronald H. Crooker
  • Patent number: 4773879
    Abstract: An assembly (1) of a coaxial electrical connector (2) and an electrical cable (3), wherein the cable (3) includes a drain conductor (18) and two coaxial cables (3a, 3a) within a common jacket (16), and conductive sheaths (14,14) of both coaxial cables are connected to a conductive shell (5) of the connector (2), and two signal transmitting conductors (12,12) of the two cables are connected to a center contact (10) of the connector (2) that is ordinarily suited for connection to a single coaxial cable.
    Type: Grant
    Filed: October 13, 1987
    Date of Patent: September 27, 1988
    Assignee: AMP Incorporated
    Inventor: William V. Pauza
  • Patent number: 4742184
    Abstract: A junction between a pair of insulated electric cables each with a peripheral conducting screen and a protective sheath over the screen is formed by a connector which includes a junction body composed of a tubular body of insulation with tapered ends and with internal and external semiconductive layers, a conductive material, such as a metal braid or ribbon, covering the external semiconductive layer and extending beyond the ends of the tubular body and connected at its ends to the screens of the cables, and an insulating protective tube with flanges at its ends that covers most of the tubular body and the conductive material thereon. A pair of tubular caps having a snap fit at one end thereof with the flanges on the protective tube and extending over the respective cable sheaths complete the connector.
    Type: Grant
    Filed: May 27, 1987
    Date of Patent: May 3, 1988
    Assignee: Treficable Pirelli
    Inventors: Jean-Louis R. M. Courty, Philippe C. A. David