Patents Examined by Morris H. Nimmo
  • Patent number: 5723818
    Abstract: An improved structure of a safety plug for coaxial cable comprising a main body and a hand tool, said main body is a hollow circular tube having an internal flange at its rearward wall, in an appropriate location at the forward end of the circular tube is an annular groove and an annular sloping portion in between the annular groove and the sloping portion, which are both inside the circular tube, are spring washer, a coaxial cable and a clamping element. When the main body of the safety plug is rotated, the cable will not be able to rotate with the main body, a special hand tool has to be used to drive the safety plug with the coaxial cable into and out of the input jack.
    Type: Grant
    Filed: August 24, 1993
    Date of Patent: March 3, 1998
    Inventor: Ming-Hwa Yeh
  • 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: 5569876
    Abstract: A modular, stackable insulating structure for a very high-voltage coaxial cable comprises at least three interspaced insulating tubes accommodating an inner conductor and an outer conductor of the coaxial cable. A plurality of ribs extending essentially radially along the longitudinal axis of the structure provide the spacing between adjacent tubes. The ribs are disposed in an optimized manner such that relatively effective zig-zag insulating paths are created between the inner and the outer conductors. The structure comprises cooling means.The insulating structure may be used for the transmission of electromagnetic pulses (power peaks) at voltages in the order of megavolts with rise times in the order of picoseconds.
    Type: Grant
    Filed: May 17, 1993
    Date of Patent: October 29, 1996
    Inventor: Andrew S. Podgorski
  • Patent number: 5550323
    Abstract: In contrast to the conventional automated bonding system, an electronic device (10) is mounted within a surrounding ring frame (12, 14) of insulating material by means of a plurality of individually applied tapes or ribbons (16) of electrically conductive material. A protective coating (18) may be applied to the assembly after bonding.
    Type: Grant
    Filed: October 26, 1993
    Date of Patent: August 27, 1996
    Assignee: LSI Logic Corporation
    Inventor: Trevor C. Gainey
  • Patent number: 5550326
    Abstract: A low profile heat dissipator for low power IC packages which is formed of a metal, thermally conductive layer, zero, one or two electrically insulative layers positioned on one or both major surfaces of the metal layer, and an adhesive pad which bonds the dissipator to the surface of the electronic component. The dissipator may have a series of score lines formed in its surfaces which allows portions of the dissipator to be bent or removed so as to conform to the available space.
    Type: Grant
    Filed: July 13, 1994
    Date of Patent: August 27, 1996
    Assignee: Parker-Hannifin Corporation
    Inventor: Bradley K. Kesel
  • Patent number: 5548088
    Abstract: An electrical conductor terminating arrangement such as an electrical connector includes a contact-making element which makes good contact with an electrical conductor in response to axial pressure displacement over the contact-making element of a displaceable element to exert a radial force on the contact-making element and to co-operate therewith for providing ongoing pressure engagement between the contact-making element and the electrical conductor without the need for the continuance of axial pressure on the displaceable element after a predetermined axial displacement of the displaceable element.
    Type: Grant
    Filed: August 12, 1994
    Date of Patent: August 20, 1996
    Assignee: ITT Industries, Limited
    Inventors: Ian J. Gray, Melvin D. White
  • Patent number: 5545853
    Abstract: The present invention features a surge-protected cable for use in the wire leads and wire-wound stators of electrical motors. The cable of the invention is of the "filter line" type. This invention reduces failures in the stator windings of variable frequency drive (VFD) motors by attenuating peak voltages and transient voltage spikes. The "filter line" type of cable insulation prevents "dirty" power from unabated travel along the axis. This invention's type of filter line cable features a core member of one or more strands of conductive material overlaid with a primary insulation layer containing ferrites and/or magnetites; this layer is then further overlaid with a flame-retardant insulation jacket layer made of high-temperature material. Both the primary insulation and the outer jacket layer are cross-linked.
    Type: Grant
    Filed: July 19, 1993
    Date of Patent: August 13, 1996
    Assignee: Champlain Cable Corporation
    Inventor: Nelson Hildreth
  • Patent number: 5541365
    Abstract: To provide a beam welding terminal structure which holds a connection member to be connected, such as a wire, from opposite sides thereof, and firmly welds the connection member by irradiation of a beam such as a laser beam, a beam welding terminal structure includes holding walls at opposite sides, and a connection member to be connected is welded to the holding walls by irradiation of a beam. A projection extends from at least one of the holding walls and beyond the connection member in a direction of the height. A rectangular wave-shaped base wall has longitudinal side portions, extending in a direction intersecting the connection member, and transverse side portions extending parallel to the connection member.
    Type: Grant
    Filed: March 11, 1994
    Date of Patent: July 30, 1996
    Assignee: Yazaki Corporation
    Inventors: Masuo Sugiura, Yutaka Sakakibara
  • Patent number: 5536904
    Abstract: A waterproof construction of a wire for a motor vehicle, which wire has one or more strands and an insulating coating surrounding the strands and is connected to a nonwatertight terminal including a terminal fixed directly to a body of the motor vehicle and a terminal mounted on a nonwatertight connector, wherein at a portion of the wire between its location connected to the nonwatertight terminal and a first branch point, the insulating coating is removed from the wire so as to expose the strands and waterproof material is filled among the strands such that an insulating and waterproofing coating member is wound around an outer periphery of the waterproof material.
    Type: Grant
    Filed: April 22, 1994
    Date of Patent: July 16, 1996
    Assignee: Sumitomo Wiring Systems, Ltd.
    Inventors: Kenji Kojima, Satoshi Amihiro
  • 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: 5532429
    Abstract: A composite shield jacket and woven electrical transmission cable assembly is disclosed wherein the shield jacket comprises an outer elastomeric cover and a metalized backing on the interior side of the cover which advantageously may comprise a thin flexible fibrous web formed either by weaving metallic coated fibers or forming a non-woven web from the metallic coated fibers, or by applying a thin metallic layer to the backside of the cover. In any case, a highly durable, flexible shield jacket is provided. When the jacket is applied to a flat transmission cable according to the invention, the side edges of the shield are on opposite sides of the cable so as to overlap the sides of the shield and cover so that exits from the shield are defined on opposing sides of the cable reducing the unwanted escape of interference noises.
    Type: Grant
    Filed: December 22, 1994
    Date of Patent: July 2, 1996
    Assignee: Woven Electronics Corp.
    Inventors: Marvella Dickerson, Douglas E. Piper
  • Patent number: 5530206
    Abstract: A coaxial cable intended to be used in the field of telecommunications comprises a metal core surrounded by at least two layers one of which is a dielectric material layer and the other of which, disposed between the core and the dielectric material layer over at least part of the length of the cable, is a semiconductor composite material layer comprising an insulative matrix and an undoped polymeric conductor containing conjugate bonds. The cable features intrinsic filtering of electromagnetic interference conducted by the cable at frequencies below 1 GHz.
    Type: Grant
    Filed: May 9, 1994
    Date of Patent: June 25, 1996
    Assignee: Alcatel Cable
    Inventors: Lydie Robert, Frederic Heliodore, Stanislas Galaj, Alain Le Mehaute
  • Patent number: 5527995
    Abstract: This invention relates to an energy conducting cable assembly. In accordance with one aspect of the present invention, the assembly comprises a conductor covered by at least one layer of insulation, and a longitudinally welded corrugated brass sheath formed about the insulation so as to effect a hermetic seal about the conductor. The cable has an ampacity and fault carrying capacity which approximates that of a cable having a like diameter sheath of chemical lead. The sheath preferably has a corrugation pitch to corrugation depth ratio of less than about 3.75 and an outside sheath diameter to sheath wall thickness ratio of greater than about 100.
    Type: Grant
    Filed: August 3, 1994
    Date of Patent: June 18, 1996
    Assignee: The Okonite Company
    Inventor: Jack S. Lasky
  • Patent number: 5527996
    Abstract: A cable used for transmitting the signals of a communications bus, such as a SCSI bus, having arbitration control signals subject to a wired-or glitch--such as the SCSI BSY signal. High propagation speed conductors increase the propagation speed of the BSY signal, resulting in a proportionate increase in the maximum length of the SCSI bus cable while maintaining adherence with the SCSI bus timing specifications.
    Type: Grant
    Filed: June 17, 1994
    Date of Patent: June 18, 1996
    Assignee: Digital Equipment Corporation
    Inventor: William E. Ham
  • Patent number: 5527994
    Abstract: A kickless water cooled cable includes six alternate polarity conductor strands and paired terminal lugs at each end which are semi-circular and mutually insulated along a diameter, the inner end of each lug including a projection having parallel flattened strand connecting surfaces. The projections are offset from each other along the diameter of insulation, the opposite offset surfaces providing a radially outer and a recessed inner connecting surface on the respective lugs. A single strand is connected to the outer surface while a dual strand termination is connected to the recessed inner surface, the single strand lying between the dual strand to form the alternate polarity conductor strands. The strands are separated by a star separator and enclosed in a hose through which water is circulated. The projections include angled inner ends to provide greater contact area, the dual strand termination includes an angled offset portion parallel to yet clearing the angled surface of the opposite lug.
    Type: Grant
    Filed: May 31, 1994
    Date of Patent: June 18, 1996
    Inventor: James J. Kasper
  • Patent number: 5525756
    Abstract: A rodent-proof aerial splice closure (20) includes a substantially hollow casing (30, 31) having substantial externally exposed plastic areas. The casing sections (30, 31) are moveable with respect to one another on a hinge (35) for accessing the interior of the casing. Clamps (50) provide for reversibly holding the casing sections (30, 31) closed. Cables can enter and exit the closure (20) through cable ports (45), which can be sealed by end-pieces (55). The exterior geometry of the closure (20) is such that substantially all exposed plastic surface regions which are accessible to rodent teeth are rounded with curvatures preferably greater than one inch radii, thus large enough to prevent rodent teeth from biting down thereon.
    Type: Grant
    Filed: May 12, 1995
    Date of Patent: June 11, 1996
    Assignee: Raychem Corporation
    Inventors: Julian S. Mullaney, William N. Beauchamp, Terry E. Frye, William K. Heisey, Jack A. Smith, Jr., Thomas H. Wermke
  • Patent number: 5525753
    Abstract: A controlled oxygen content copper clad laminate product and process. In accordance with one aspect of the present invention, there is provided a laminate having a first layer of oxygen-free copper joined to a second layer of oxygen-rich copper by the steps of (i) cladding the first layer to the second layer at a relatively low speed to minimize rolling friction, (ii) finish rolling the laminate to substantially increase its thickness tolerance, (iii) slitting the laminate to increase its width tolerance, (iv) profiling a groove at a selected location in the laminate, (v) finish slitting a plurality of ribbons from the laminate, (vi) tension leveling the laminate to straighten and flatten its shape, (vii) stamping the laminate into sections each of a selected configuration, (viii) cleaning laminate surfaces, and (ix) direct bonding the laminate to a substrate material such that the first layer is annealed to the second.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: June 11, 1996
    Assignee: Brush Wellman, Inc.
    Inventors: Joseph P. Mennucci, Charles R. Mead
  • Patent number: 5523529
    Abstract: A protective cover assembly for electrical cables to be extended along a wall or floor surface includes interfitting U-shaped clip members and cover strips having complementary flange portions between their respective sidewalls, and the sidewalls of the clip members are provided with cable retainers to temporarily retain the cables in place during installation and spacer tabs to maintain uniform spacing with a baseboard or other trim. A re-entry tool is provided for positive separation or release of the cover strip from the clip members and specially formed slots are provided in the bases of the clip members for insertion of different types of anchor fasteners.
    Type: Grant
    Filed: March 23, 1993
    Date of Patent: June 4, 1996
    Assignee: Cable Ready, Inc.
    Inventor: Randall A. Holliday
  • Patent number: 5523528
    Abstract: Interconnection cable for transmission of low frequency signals, preferably of audio frequency signals, includes a core (1) ensuring mechanical strength of the cable and surrounded by at least four insulated conductors (2) forming first and second signal path of the cable in equal number. The conductors (2) are covered by an insulation layer (3) of foamed non-polar plastic. A shielding conductor (4) is made of a fabric layer with a density of 55 to 95%, woven of copper wire having a diameter in order of magnitude of several tenth millimeters. An outer shell (5) made of solid plastic covers the assembly of the core (1)/conductors (2)/shielding conductor (4).
    Type: Grant
    Filed: December 20, 1993
    Date of Patent: June 4, 1996
    Inventors: Attila Bese, Sandor Fuzesi
  • Patent number: 5523534
    Abstract: An elongated flexible lead conducts electrical biosignals from a medical electrode attached to a person's skin to a recording instrument and the lead is translucent to X-rays. The lead includes a primary center conductor formed by a bundle of conductive fibers such as carbon fibers, and a tubular layer of electrical insulating plastic material surrounds the fibers. An electrical conducting non-metallic shielding member extends around the tubular layer, and in one embodiment includes a bundle of the carbon fibers surrounded by a tubular layer of electrical conductive plastic material. A tubular layer of electrical insulating plastics material surrounds the shielding member, and the shielding member has an effective low electrical resistance close to that of the primary center conductor.
    Type: Grant
    Filed: June 28, 1993
    Date of Patent: June 4, 1996
    Assignee: Vital Connections, Inc.
    Inventors: Mark L. Meister, Edward F. Hoar