Sealing Patents (Class 174/77R)
  • Patent number: 6143987
    Abstract: An electric wire 10 is provided with a shielding layer 12 inside an outer sheath 11, three insulated wires 13 being provided therein. A correcting ring 46 is inserted between the outer sheath 11 and the shielding layer 12 of the electric wire 10, correcting the outer sheath 11 into a circular shape. A waterproofing ring 39 is attached tightly to an outer peripheral face of the outer sheath 11. In this way, even in the case where the shape of the outer sheath 11 of the electric wire 10 provided with a plurality of insulated wire cores 13 tends to be unstable, the electric wire 10 can be maintained in a specified shape by the correcting ring 46. Consequently the waterproofing ring 39 can fit stably and tightly to the outer peripheral face of the electric wire 10, thereby improving the waterproofing function.
    Type: Grant
    Filed: August 26, 1998
    Date of Patent: November 7, 2000
    Assignee: Sumitomo Wiring Systems, Ltd.
    Inventor: Yasumitsu Makita
  • Patent number: 6118076
    Abstract: A cable seal insert for sealing a cable entry in a closure, including:(a) at least two plates, each of which, at least in use, has extending therethrough at least one aperture for a cable; and(b) sealing material located between the plates;wherein a peripheral surface of the seal insert which is substantially parallel to the or each cable aperture is substantially planar, and at least one of the plates is formed from non-elastomeric material.
    Type: Grant
    Filed: March 2, 1998
    Date of Patent: September 12, 2000
    Assignee: N.V. Raychem S.A.
    Inventors: Jesper Damm, Hendrik Graulus, Jacques Brusselmans, Jean-marie Etienne Nolf, Michel van Hissenhoven
  • Patent number: 6107574
    Abstract: This invention provides a planar sealing article including: (a) a driver including a crosslinked foamable polymer, and (b) a sealer including an uncrosslinked foamable polymer in intimate contact with the driver and surrounding the driver in the plane of the article, the sealer having a plurality of apertures therethrough. The sealing article is especially adapted for forming a seal between a plurality of substrates and a bounded opening through which the plurality of substrates pass.
    Type: Grant
    Filed: February 24, 1998
    Date of Patent: August 22, 2000
    Inventors: Rong J. Chang, Keith Dawes
  • Patent number: 6107571
    Abstract: A seal for sealing between a cable and a casing enclosing part of the cable includes a wall member having a plurality of substantially concentric removable portions which may selectively removed to provide a cable aperture of required diameter through the wall member. The seal also includes sealing material retained by the wall member, which seals, in use, around a cable extending through the cable aperture in the wall member. When a removable portion of the wall member is removed, a corresponding portion of the sealing material is also removed, thereby providing a cable aperture of the required diameter through the sealing material.
    Type: Grant
    Filed: March 2, 1998
    Date of Patent: August 22, 2000
    Assignee: N.V. Raychem S.A.
    Inventor: Jesper Damm
  • Patent number: 6100472
    Abstract: A cable is sealed and locked in position within an entry port, e.g., of a cable splice enclosure, by a device which includes an elongate tubular body of elastomeric material for receiving the cable therethrough. Once the cable has been passed through the device, the cable and its device are pulled into the entry port and become radially compressed between the port and the cable. Annular projections abut opposite ends of the port to prevent subsequent axial movement of the device or the cable.
    Type: Grant
    Filed: September 29, 1997
    Date of Patent: August 8, 2000
    Assignee: Bowthorpe PLC
    Inventor: Victoria Ann Foss
  • Patent number: 6069319
    Abstract: A wire harness for use on contoured, mounting surface includes individual wires bundled together. In an effort to protect these wires from mechanical wear, vibration, and water the wire harness is encased in foam. The foam is molded about the wire harness so that is surrounds the harness in the shape of the mounting surface. The foamed-in wire harness may have an elastic memory, so that it can be bent and resiliently recover to its molded shape.
    Type: Grant
    Filed: July 22, 1997
    Date of Patent: May 30, 2000
    Assignee: Lear Automotive Dearborn, Inc.
    Inventors: Joseph J. Davis, Jr., David C. Pudduck, Timothy F. O'Brien
  • Patent number: 6064006
    Abstract: 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: Grant
    Filed: March 12, 1999
    Date of Patent: May 16, 2000
    Assignee: 3M Innovative Properties Company
    Inventors: Jacqueline J. Pulido, Kenneth D. Rebers, Thomas S. Croft, Alan J. Oshinski, Kwang H. Chu, Daniel G. Lee, Russell P. Smith
  • Patent number: 6056606
    Abstract: A base for mounting electrical components having terminals which are potted. The base uses a substantially smaller amount of potting material than conventional bases. Furthermore, the base provides a larger contact surface area for the deposited potting material, allowing the potting material to cure more quickly. In addition, trough space between the components on the upper surface of the base is increased substantially.
    Type: Grant
    Filed: August 27, 1998
    Date of Patent: May 2, 2000
    Assignee: Lucent Technologies, Inc.
    Inventor: Bassel H. Daoud
  • Patent number: 6046406
    Abstract: A sealed cable joint box has a body closed by a lid, cable apertures between the body and the lid, a first flexible and deformable seal for sealing the cables in each aperture and a second flexible and deformable seal between the body and the lid, this second seal being rendered discontinuous by the apertures and formed of independent segments between the apertures. Each segment of the second seal has each of its terminal portions embedded in the first seal in the aperture at this level and has a greater hardness than the first seal.
    Type: Grant
    Filed: May 14, 1997
    Date of Patent: April 4, 2000
    Assignee: Alcatel Cable Interface
    Inventors: Michel Milanowski, Alain Vincent
  • Patent number: 6007377
    Abstract: An in line switch device (1) includes a switch housing (3, 4) providing a switch component chamber. A switch actuator (8, 9) is operable from the exterior of the switch housing (3, 4). At least two sets of switch terminals (17, 18, 19, 20, 21, 22) are accessible from the exterior of the switch component chamber and are covered by a removable closure or respective removable closures (26, 27). The removable closure(s) has two cable apertures (28) for passage of respective power cables to be connected to respective sets of switch terminals (17, 18, 19, 20, 21, 22). A first sealing device (29, 30) is associated with each cable aperture (28) for sealing around the associated power cable. The removable closure(s) (26, 27) are engaged with the switch housing (3, 4) with one or more second sealing devices (14, 15) provided at the interface between the or each removable closure (26, 27) and the housing (3, 4).
    Type: Grant
    Filed: February 20, 1998
    Date of Patent: December 28, 1999
    Assignee: PDL Holdings Limited
    Inventor: David Langman Cook
  • Patent number: 5986213
    Abstract: A device is disclosed for closing and sealing of cable cutout bushings of major diameters, generally of a rectangular shape, as they are usually provided for leading through electrical cables with premounted plugs that can be used at interfaces of control enclosures or prefabricated walls and bracket systems in coupling or connecting elements as well as for switching cabinets and enclosures for the closing and sealing of major cable bushings. The device is molded mainly out of elastic material in which three functional elements are connected together to form one piece which combines three functional elements together, namely, (a) a sealing flange, (b) a conduit as connection part and (c) a cable sealing element.
    Type: Grant
    Filed: August 22, 1997
    Date of Patent: November 16, 1999
    Assignee: Rolec Enclosures USA Inc.
    Inventor: Gunther Memmesheimer
  • Patent number: 5952612
    Abstract: A two part range-taking member for providing a seal around a substrate includes a mating pair of resilient components for enclosing the substrate and a co-operating pair of rigid components for urging the resilient components into conformity with the substrate. The member may provide an electrical stress cone for a power cable, for example with two such members being provided in a cable joint.
    Type: Grant
    Filed: May 8, 1997
    Date of Patent: September 14, 1999
    Assignee: Raychem Limited
    Inventors: Phillip Roland Winfield, David Ions, James Patrick Reed, Christian Kiermaier, Brian Clark
  • Patent number: 5949023
    Abstract: A cable bushing in a housing for a device which may be a gas sensor and which may be connected to at least one connecting cable having an electrical conductor and cable insulation includes a molded body provided inside an opening of the housing and through which the at least one connecting cable is guided. The molded body has defined therein at least one bushing tube and has an outer cylindrical wall in which is defined a ring groove starting at one frontal side and extending axially inside the molded body, the at least one bushing tube and the ring groove being separated by an inner wall. The inner wall and the outer cylindrical wall of the molded body have respective thicknesses, and the thickness of the outer cylindrical wall is less than the smallest wall thickness of the inner wall. A support ring is positioned in the ring groove and serves as an outer support for wedging in the molded body into the opening of the housing.
    Type: Grant
    Filed: July 15, 1997
    Date of Patent: September 7, 1999
    Assignee: Robert Bosch GmbH
    Inventor: Helmut Weyl
  • Patent number: 5949022
    Abstract: 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: Grant
    Filed: March 18, 1996
    Date of Patent: September 7, 1999
    Assignee: LG Chemical Ltd.
    Inventors: Young Ki Park, Yun-Won Chang
  • Patent number: 5949947
    Abstract: Repair of a damaged portion of a cable sheath may be effected with the aid of a sheath repair kit comprised of an enclosure (10) and a volume of encapsulant (36). The enclosure (10) includes first and second members (12), both having an interior axially extending channel in communication with openings (20.sub.1 and 20.sub.2) in ends of the respective member to receive the damaged cable portion in the channel. The second member is shorter than the first member and has a cross-section smaller in area than that of the channel in the first member to enable receipt of the second member in the channel of the first member. In this way, the first and second members will capture the damaged portion of the cable, as well as a volume of the encapsulant (36) added to the channel of the first member to immerse the damaged cable portion.
    Type: Grant
    Filed: November 24, 1997
    Date of Patent: September 7, 1999
    Assignee: AT & T Corp
    Inventors: Hossein Eslambolchi, John Sinclair Huffman, James F. Kirkpatrick, Claywell D. Turley
  • Patent number: 5949024
    Abstract: 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: Grant
    Filed: November 12, 1997
    Date of Patent: September 7, 1999
    Assignee: RXS Kabelgarnituren GmbH
    Inventors: Franz Froehlich, Rainer Zimmer
  • Patent number: 5928033
    Abstract: A waterproof structure for a wire leading part of a housing is provided. The structure includes two cover bodies and two waterproof members carried by the cover bodies. The waterproof members are made of elastic materials which are soluble in each other and fusible in insulating covers of wires by ultrasonic oscillation under pressure. At the mutual welding of the cover bodies by the ultrasonic oscillation, the waterproof members are fused in each other, the waterproof members are fused in the insulating covers and the cover bodies are welded to the housing.
    Type: Grant
    Filed: December 17, 1997
    Date of Patent: July 27, 1999
    Assignee: Yazaki Corporation
    Inventors: Tetsuo Kato, Akira Shinchi, Nobuyuki Asakura
  • Patent number: 5912433
    Abstract: 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: Grant
    Filed: January 17, 1997
    Date of Patent: June 15, 1999
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Jacqueline J. Pulido, Kenneth D. Rebers, Thomas S. Croft, Alan J. Oshinski, Kwang H. Chu, Daniel G. Lee, Russell P. Smith
  • Patent number: 5895890
    Abstract: 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: Grant
    Filed: September 23, 1996
    Date of Patent: April 20, 1999
    Assignee: Sumitomo Wiring Systems, Ltd.
    Inventors: Kenichi Uchiyama, Masashi Sugiyama
  • Patent number: 5858311
    Abstract: A thermowell assembly and method which allows for arresting leakage in the case a thermowell begins to leak in a hydroprocessing process without having to shut down a flow of a hydrocarbon feed stream through a hydroconversion reaction zone in the hydroprocessing process. The thermowell assembly comprises a first hollow sleeve section which supports a thermowell member, a ferrule sealing member which engages the first hollow sleeve section, a second generally cup-shaped second sleeve section wherethrough a thermocouple member slidably passes, and an outer sleeve member for maintaining the union of the first sleeve section, the ferrule sealing member, and the second sleeve section. The method comprises severing and/or removing the thermocouple member from the commenced-leaking thermowell member and placing a high pressure cap over an aperture left vacant by the thermocouple member to seal-off the leaking thermowell member from the atmosphere.
    Type: Grant
    Filed: March 14, 1996
    Date of Patent: January 12, 1999
    Assignee: Chevron U.S.A. Inc.
    Inventor: Robert W. Bachtel
  • Patent number: 5859388
    Abstract: An environmentally sealed cable splice includes (a) a butt cable splice between at least two substantially side-by-side cables, (b) an enclosure sealed around said cables, the enclosure including (i) a first part through which the cable extends, and (ii) a second part which is hollow and together with the first part forms a closed space, the first and second parts having internal and external cross-sections such that one can be slid upon the other so as to give an overlap between the first and second parts, and (c) an inflated sealing member carrying sealing material, the sealing member being within the enclosure and in contact with the cables and the overlap.
    Type: Grant
    Filed: March 24, 1997
    Date of Patent: January 12, 1999
    Assignee: N.V. Raychem S.A.
    Inventors: Robert James Allen, Robert Vanhentenrijk, Alain Wambeke, Jean-Marie Etienne Nolf
  • Patent number: 5831217
    Abstract: A conventional feedthrough connector having a plurality of separate passages is secured in a hole in a bulkhead, followed by feeding separate wire bundles through the separate passages. Two potting dams are secured to the connector, one at each side of the bulkhead. Each potting dam has a collar encircling a projecting cylindrical stem of the connector and tightly secured thereto, and separate integral tubular segments encircling the wire bundles, respectively. The tubular segments are soft pliant material and are gathered tightly around the wire bundles. Settable sealant is injected through a conduit that opens into the collars to fill the collars and the connector passages, and thereby seal the wire bundles in the connector.
    Type: Grant
    Filed: November 16, 1995
    Date of Patent: November 3, 1998
    Assignee: The Boeing Company
    Inventors: Robert K. Jarvis, Woodrow H. Alford
  • Patent number: 5824956
    Abstract: 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: Grant
    Filed: September 23, 1997
    Date of Patent: October 20, 1998
    Assignee: Cables Pirelli
    Inventors: Beatrice Jeanne Marie Claude Garban, Daniel Hubert Marie Dupays
  • Patent number: 5801465
    Abstract: An underwater motor according to the present invention includes a motor body and a cable for connecting the motor body to a power source for sending and receiving electrical signals with respect to the motor body. Both the cable and the motor body are provided with connectors for removably connecting the motor body and the cable to each other. In this way, an underwater motor, in which installation, transportation and wiring operations easily can be performed and which can prevent penetration of water, is provided.
    Type: Grant
    Filed: July 13, 1996
    Date of Patent: September 1, 1998
    Assignee: Ebara Corporation
    Inventor: Yoshiyuki Yamada
  • Patent number: 5793921
    Abstract: 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: Grant
    Filed: October 31, 1996
    Date of Patent: August 11, 1998
    Assignee: PSI Telecommunications, Inc.
    Inventors: Timothy A. Wilkins, Donald J. Smith
  • Patent number: 5792989
    Abstract: 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: Grant
    Filed: November 12, 1996
    Date of Patent: August 11, 1998
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Russell P. Smith
  • Patent number: 5792987
    Abstract: An apparatus for sealing the end of an elongate cable such as a heating cable includes (1) a housing with a first open end and a second open end and a strain relief element positioned within the housing, (2) a flexible container which can be positioned over the cable end and (i) is of generally tubular shape, (ii) has an interior surface and an exterior surface, (iii) has a first open end and a second closed end, and (iv) contains a sealant; and (3) a cap which can be mated with the housing at the second open end, and cover the flexible container. The apparatus has excellent moisture-resistant properties even after repeated exposure to high temperatures, is reenterable, and can be readily mounted on a substrate such as a pipe.
    Type: Grant
    Filed: August 28, 1995
    Date of Patent: August 11, 1998
    Assignee: Raychem Corporation
    Inventors: Wesley B. Dong, Helen D. Shaughnessy, Jeffrey T. Haller, Daniel T. Emerson, Jae Yoon Jung, Larry M. Edwards
  • Patent number: 5789707
    Abstract: A device for forming a seal around an elongate object having: (a) a sealing plate having a hole through which the object can pass, and containing a chamber in communication with the hole; (b) a pressure plate positioned within and movable relative to the chamber; and (c) a sealing material positioned within the chamber such that when the elongate object passes, in use, through the hole in the sealing plate, the sealing material is positioned between the pressure plate and the elongate object, wherein the pressure plate can be moved, in use, towards the object in a direction transversely of the object, to urge the sealing material into sealing contact with the object.
    Type: Grant
    Filed: May 31, 1996
    Date of Patent: August 4, 1998
    Assignee: N.V. Raychem S.A.
    Inventors: Jesper Damm, Jean-Marie Etienne Nolf, Maarten Michiels, Etienne Laeremans
  • Patent number: 5783778
    Abstract: A cable locking and sealing device has an elongate body of elastomeric material formed with at least one through-passage for receiving a cable and at least one longitudinal slit extending down at least a portion of its length. The interior of the through passage is formed with a series of annular ribs which each taper in depth towards a point adjacent the longitudinal slit. When the device is pulled into an entry port, its elongate body becomes radially compressed thereby holding the cable firmly in place: however, the sealing effect of the ribs against the cable is not compromised by any relative longitudinal displacement of the portions of the body either side of the slit.
    Type: Grant
    Filed: March 1, 1996
    Date of Patent: July 21, 1998
    Assignee: Bowthorpe PLC
    Inventors: Raymond Charles Foss, Andrew Stephen Cammack
  • Patent number: 5777268
    Abstract: 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: Grant
    Filed: September 17, 1996
    Date of Patent: July 7, 1998
    Assignee: Raychem Corporation
    Inventors: Barry Wayne Allen, Terry Edward Frye, Michael Earle Labonge, Linda Jones Joyner
  • Patent number: 5767448
    Abstract: 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: Grant
    Filed: September 30, 1996
    Date of Patent: June 16, 1998
    Assignee: Raychem Corporation
    Inventor: Wesley B. Dong
  • Patent number: 5741014
    Abstract: A kit of parts for closing an end of a duct having a polygonal internal cross-section comprises: (a) a sealing member that can be inserted into the duct to form a seal therewith; and (b) a device that can be inserted into the duct to provide sealing material therein, comprising a support and sealing material located on the support. The device is shaped such that at least some of the sealing material of the device is located at the corners of a polygon, to form a seal, in use, between the sealing member and an internal surface of the duct at each corner of the polygonal internal cross-section thereof.
    Type: Grant
    Filed: September 14, 1995
    Date of Patent: April 21, 1998
    Assignee: N.V. Raychem S.A.
    Inventors: Alain Wambeke, Jean-Pierre Wandels
  • Patent number: 5696351
    Abstract: An intregal cable retention and sealing apparatus has reusable clamping mechanisms for the entry and exit of a wide variety of cable types and sizes to a sealed enclosure. The device is formed by "mirror-image" body halves having, when assembled, at least one axial passageway formed therethrough to accomodate one or more respective cables. One end of the apparatus includes a chamber for housing a sealing medium, whereas the other end includes a cable retention mechanism.
    Type: Grant
    Filed: March 10, 1995
    Date of Patent: December 9, 1997
    Assignee: Ericsson Raynet
    Inventors: Alexander Benn, Peter Henderson, Detlev A. Lohmuller, Paulmer M. Soderberg, Marc F. Moisson, Lowell I. Koht
  • Patent number: 5684272
    Abstract: An in-line cord ground fault circuit interrupter has a tripping relay whose various components are an integral part of the GFCI housing, instead of being self-contained. The front cover of the housing has the necessary bosses, guide slots, and screw holes for mounting of all the mechanical and electrical elements of the relay. The rear cover serves as a water resistant enclosure and holds the relay elements in position across the width of the housing. The relay's movable contact arms are attached directly to the printed circuit board of the GFCI. The relay armature is located by ribs on the front cover and is trapped in position when the relay coil and frame assembly is pushed over it using guide slots in the front cover. The armature has integral arms extending to each side wherein each arm has an actuating cam on its end. Gripping ribs and strain relief ribs are placed at the cord entrances to the housing with a chamber formed therebetween.
    Type: Grant
    Filed: October 23, 1995
    Date of Patent: November 4, 1997
    Assignee: Leviton Manufacturing Co., Inc.
    Inventors: Paul Gernhardt, David Chan, Serge Krzyzanowski
  • Patent number: 5670747
    Abstract: Electrical termination and connector structures for electrical cable, and a penetrator for electrical power and/or signals through a pressure barrier, provide, in different embodiments, mechanical attachment to the cable and to individual conductors of a multi-conductor cable; and provide fluid-tight seals to protect the terminated and interconnected conductors from adverse ambient gases and liquids. A molded elastomeric body, in one embodiment, provides the rugged fluid-tight seals. The electrical termination and connector structures withstand cycled pressure and temperature environments, and include a mechanism for restraining the extrusion or other displacement of cable insulation under conditions of cycled pressure and of temperature. The structures also accommodate axially adjustable installation and differential axial expansion and contraction.
    Type: Grant
    Filed: February 1, 1995
    Date of Patent: September 23, 1997
    Assignee: D.G. O'Brien, Inc.
    Inventors: C. B. Lawer, David E. Dunfee, Harold P. Hilberg, Philip S. Amato, Jr.
  • Patent number: 5640765
    Abstract: A method for electrically connecting two electrical lines. Each electrical line contains at least two electrical conductors that are insulated from each other, and one common sheath surrounding the electrical conductors. One of the two lines (2) is equipped with insulated conductors and is flexible, while the other line (1) has a stiff, tubular metal sheath. To produce a moisture-proof connection between the conductors of the electrical lines, first the sheath is removed from a section of the conductors of the flexible line (1) and insulation is removed from the conductors so that the ends are bared. The conductors prepared in this manner are placed in a flexible rubber seal (10) containing passage holes to separate the conductors. After that, the conductors of the flexible line (1) are electrically connected to the conductors of the other line (2) which protrude from the metal sheath. A metal tube (13) is then positioned over the entire connection area.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: June 24, 1997
    Assignee: Alcatel Kabel AG & Co.
    Inventors: Hans Heinrich Wiemeyer, Dieter Zimmer
  • Patent number: 5625167
    Abstract: 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: Grant
    Filed: August 19, 1994
    Date of Patent: April 29, 1997
    Assignee: N.V. Raychem S.A.
    Inventors: Lodewijk C. M. Van Noten, Tommy Petersen
  • Patent number: 5607167
    Abstract: A sealing member having: a sealing material having a cone penetration between 80 and 400 (10.sup.-1 mm) and an ultimate elongation of at least 100%, and an elastomeric retaining member for the sealing material. The retaining member in the form of two connected concentric O-rings.
    Type: Grant
    Filed: April 28, 1995
    Date of Patent: March 4, 1997
    Assignee: N.V. Raychem S.A.
    Inventor: Joris I. Franckx
  • Patent number: 5589666
    Abstract: A buried service splice enclosure for sealing a splice of telecommunication cables comprises a closure defining an interior space for accommodating the cable splice and defining an opening for receipt of the splice therethrough. A closure seal sealably closes the closure opening and has apertures for receipt therethrough of the cables. Means are provided for sealing the closure seal to the closure and for sealing the cables to the closure seal at the apertures. An inlet fitting, such as a check valve, communicates with the closure interior space and is adapted to receive and pass an encapsulant under pressure into the interior space. An outlet fitting, such as a pressure relief valve, also communicates with the interior space, the pressure relief valve adapted to pass the encapsulant therethrough when the encapsulant is exposed to a predetermined pressure in the closure interior space.
    Type: Grant
    Filed: April 30, 1993
    Date of Patent: December 31, 1996
    Assignee: Thomas & Betts Corporation
    Inventors: David J. DeCarlo, Thomas L. Mineur, Ronald S. Stanwick
  • Patent number: 5574258
    Abstract: In order to establish a low-electrical resistance between two wires, a heat-shrinkable hollow tube is prepared. Three or more small-diameter conductors are attached to the inner surface of the hollow tube, such as by use of an epoxy adhesive. These conductors run parallel to the axis of the tube along its entire length. Each of the two wires is inserted into an opposite end of the tube. The tube is then heated to a sufficient temperature, such that when it cools it collapses and grasps both of the wires firmly, whereby the resulting electrical conductance between them (aided by the conductors) is enhanced.
    Type: Grant
    Filed: December 23, 1994
    Date of Patent: November 12, 1996
    Assignee: Lucent Technologies Inc.
    Inventor: Greg E. Blonder
  • Patent number: 5574257
    Abstract: The invention generally relates to the protection of telecommunications and electrical devices, such as terminal blocks, with gelled oil compositions that employ aluminum complex soaps as gelling agents. The telecommunications devices are typically installed in an enclosure, filled with the gelled oil composition, to protect the device from moisture and corrosion. The gelled oils also include an oil component, a bleed inhibitor of polybutene, and optional amounts of antioxidant and pour point depressant.
    Type: Grant
    Filed: October 24, 1994
    Date of Patent: November 12, 1996
    Assignee: CasChem, Inc.
    Inventors: Melvin Brauer, Thomas W. Sheedy
  • Patent number: 5561273
    Abstract: An electrical cable holding case that can prevent a charged resin material for sealing from cracking by blocking the sharp bending of electrical cables when they are taken out of the case is provided. An electrical cable holding case includes a cylindrical case main body and a lid-like rear holder having electrical insertion holes and resin charging holes. Electrical cables taken out of the case main body via the electrical cable insertion hole of the rear holder are embedded by resin molding from the case main body to the outer surface of the rear holder to hold the electrical cables so as to be watertight. Electrical cable support walls are arranged at the edges of the electrical cable insertion holes outside the rear holder.
    Type: Grant
    Filed: November 9, 1994
    Date of Patent: October 1, 1996
    Assignee: Yazaki Corporation
    Inventor: Makoto Yamanashi
  • Patent number: 5545851
    Abstract: A cap sleeve is composed of a cap member having an open end receiving a seal member with a sealing system. The sealing system includes the seal member acting with a second member to form a sealing chamber for receiving a sealing ring and an arrangement for moving the seal member relative to the other member to reduce the volume of a sealing channel receiving the sealing ring to cause an outward radial deformation of the sealing ring into contact with an inner surface of the cap member to form a seal therebetween.
    Type: Grant
    Filed: November 4, 1994
    Date of Patent: August 13, 1996
    Assignee: RXS Schrumpftechnik-Garnituren GmbH
    Inventors: Hans-Juergen Meltsch, Franz-Fr Froehlich, Rainer Zimmer, Wolf Kluwe
  • Patent number: 5532433
    Abstract: There are provided a terminal connection structure and a method of producing the same, in which a terminal is positively and firmly press-connected to end portions or intermediate portions of electric wires, and the connection portion is rendered waterproof. Conductors of a plurality of electric wires are press-connected together by pressing pieces of a terminal through an organic seal material, and the conductors, as well as sheaths of the wires, are clamped together by the pressing pieces of the terminal, and each of the pressing pieces is pressed deeper at that portion thereof disposed on the conductors than at those portions thereof disposed on and adjacent to the sheaths, so that the organic seal material is filled in the conductors, in between the terminal and the conductors, and in between the terminal and the sheaths.
    Type: Grant
    Filed: May 19, 1994
    Date of Patent: July 2, 1996
    Assignee: Yazaki Corporation
    Inventors: Takayoshi Endo, Hiroki Kondo
  • Patent number: 5520974
    Abstract: Flame retarded organopolysiloxane gels suitable for sealing and protecting electrical contacts include (i) an organopolysiloxane gel having repeat units of the structure ##STR1## where each R is independently phenyl or C.sub.1 -C.sub.4 alkyl or fluoroalkyl, at least 40% of the R groups being phenyl; and (ii) an additive package mixed with the organopolysiloxane, which is (a) zinc oxide; (b) antimony oxide; (c) a brominated compound having a molecular weight of at least 450 and a bromine content of at least 40 weight %; (d) a chlorinated compound having a molecular weight of at least 300 and a chlorine content of at least 40 weight %; or (e) combinations of the above. The additive package is used in an amount between about 10 and about 60 parts by weight per 100 parts by weight of organopolysiloxane.
    Type: Grant
    Filed: March 22, 1995
    Date of Patent: May 28, 1996
    Assignee: Raychem Corporation
    Inventors: Achilles Chiotis, Rajendra S. Cornelius, Pravin L. Soni
  • Patent number: 5517592
    Abstract: A sleeve for receiving branch or joint areas in optical or electrical cables, comprises a stable, essentially cylindrical hollow body (8) with at least one open end to receive the branch or joint areas, where a sleeve head (1) is inserted into the open end(s) and the sleeve head(s) (1) has (have) passage openings (2) in the form of radial slots (2) for the incoming or outgoing cables (3, 4). The slots (2) contain sealing bodies (11), which encompass the incoming or outgoing cable (3, 4) and seal the slots (2).
    Type: Grant
    Filed: October 21, 1994
    Date of Patent: May 14, 1996
    Assignee: kabelmetal electro GmbH
    Inventors: Franz Grajewski, Hans-Holger Freckmann, Werner Stieb, Zbigniew Wielgolaski, Reinhard Schottker
  • Patent number: 5516985
    Abstract: A cable end cap including a tubular sleeve (3), which is closed at a front end and is made of a thermoplastic material, and an elastomer sealing element (4) with sealing lips (41). Sleeve (3) and sealing element (4) are connected sealingly together by a mounting ring (10). Thus, cut off cable ends can be sealed reliably with little complexity.
    Type: Grant
    Filed: August 24, 1994
    Date of Patent: May 14, 1996
    Assignee: Huber & Suhner AG
    Inventors: Jurgen Merkel, Erich Wickli
  • Patent number: 5502282
    Abstract: A sleeve head for a cable sleeve having a seal insert of elastic material and having pressure-producing elements, preferably screws for compressing the seal insert. The cable sleeve is conically expanded in the introduction region into which an initially adapted, conical seal insert is introduced. After introduction of the cables, pressure is generated on the seal insert in axial direction with the pressure-producing elements. As a consequence of the conical fashioning at the circumference of the cable sleeve, a radial compression of the elastic material of the seal insert ensues, and a sealing ensues as a result thereof. Cable clamp devices aligned with the cable introduction openings are provided in the inside of the cable sleeve.
    Type: Grant
    Filed: June 7, 1994
    Date of Patent: March 26, 1996
    Assignee: Siemens Aktiengesellschaft
    Inventor: Dieter Kunze
  • Patent number: 5502281
    Abstract: A cable sleeve seal including a seamed pipe section and end-face seal members, with a sealing insert in sealing regions between the end face seal members and an inside of the pipe section and in a longitudinal seam of the pipe section, whereby the sealing insert is fixedly arranged in the sealing regions and the longitudinal seam. Moreover, the sealing insert merges from the sealing regions at the end face seal members into the longitudinal seam without interruption.
    Type: Grant
    Filed: May 10, 1994
    Date of Patent: March 26, 1996
    Assignee: RXS Schrumpftechnik-Garnituren GmbH
    Inventors: Rainer Schoelling, Detlef Graefe, Hermann Klostermeyer, Martin Greisinger
  • Patent number: 5498839
    Abstract: A cable sleeve composed of a socket pipe and end-face seal members. The matching of introduction openings in the end-face seal members to the diameters of the cables to be introduced ensues with the assistance of seal member inserts that are fit into the introduction openings and which provide cable openings for close fitting to the cable introduced therein. Sealing in parting planes is undertaken with appropriate, known sealants.
    Type: Grant
    Filed: May 6, 1994
    Date of Patent: March 12, 1996
    Assignee: RXS Schrumpftechnik-Garnituren GmbH
    Inventors: Martin Behrendt, Adolf Franz, Roland Hunke, Roland Roether