Ignition Interference Suppressor Type Patents (Class 338/66)
  • Patent number: 9130290
    Abstract: A contactor including a bellows body, a fixed portion, connected to one end of the bellows body and provided with at least one fixed touch piece extending along the bellows body, and a movable portion, connected to the other end of the bellows body, where the movable portion is configured to be depressed to compress the bellows body and to bring the movable portion and/or the bellows body into contact with the fixed touch piece of the fixed portion.
    Type: Grant
    Filed: March 15, 2012
    Date of Patent: September 8, 2015
    Assignee: OMRON CORPORATION
    Inventors: Takahiro Sakai, Yoshinobu Hemmi
  • Patent number: 9124012
    Abstract: A contactor including a bellows body, a fixed portion connected to one end of the bellows body, and a movable portion, connected to the other end of the bellows body, where the movable portion is configured to be depressed to compress the bellows body and to bring a connecting projection, projectingly provided on the bellow body, into contact with the bellows body itself.
    Type: Grant
    Filed: March 15, 2012
    Date of Patent: September 1, 2015
    Assignee: OMRON CORPORATION
    Inventors: Takahiro Sakai, Yoshinobu Hemmi
  • Patent number: 6328176
    Abstract: Subject of the present invention is multifunctional protective component. This new component provides simultaneous protection against voltage strokes and against both high and low frequency disturbances. It is composed of two discrete chip components, namely of multilayer ZnO polycrystalline diode and multilayer ceramic condenser or multilayer self-limiting condenser and multilayer ceramic condenser, which are mutually mechanically connected with non-conductive low-temperature glass (frite), parallel electrical connection between both chips being created with second metallization, and common outer electrodes of newly formed chip. This new component is suitable for surface mounting as well as in terminal leads form.
    Type: Grant
    Filed: November 12, 1998
    Date of Patent: December 11, 2001
    Assignee: Keko-Varicon
    Inventor: Zoran Zivic
  • Patent number: 5875543
    Abstract: A coil type, noise suppressing high voltage resistor wherein, without applying a releasing agent to the coil core, the adhesiveness of the fluorocarbon polymer in its unvulcanized state is reduced sufficiently so that unwinding of the unvulcanized core, followed by winding of the resistance wire, can be smoothly carried out. On the coil core covered by extrusion coating with a fluorocarbon polymer mixed with ferrite powder, the resistance wire is helically wound. The coil core to which the resistance wire has been applied is then covered in sequence with an insulating layer, a braid for reinforcement, and a sheath. The fluorocarbon polymer is a blend polymer mixture including a reinforcing polymer, preferably an ethylene-vinyl acetate copolymer, which is compatible with the fluorocarbon polymer and can be co-vulcanized therewith. The blend ratio is 5% to 25% by weight of the EVA, based on the total mixture.
    Type: Grant
    Filed: February 13, 1997
    Date of Patent: March 2, 1999
    Assignee: Sumitomo Wiring Systems, Ltd.
    Inventors: Terutsugu Fujimoto, Makoto Higashikozono, Hiroshi Inoue
  • Patent number: 5843567
    Abstract: There is disclosed an electrical component having an axial direction and two ends for making electrical contact with another component comprising a plurality of electrically conductive fibers in a matrix, the plurality of the fibers being oriented in the matrix in a direction substantially parallel in the axial direction of the component and being continuous from one end of the component to the other end to provide a plurality of electrical point contacts at each end of the component, wherein the component further includes magnetic particles.
    Type: Grant
    Filed: June 3, 1997
    Date of Patent: December 1, 1998
    Assignee: Xerox Corporation
    Inventors: Joseph A. Swift, Ronald F. Ziolo, Stanley J. Wallace
  • Patent number: 5824958
    Abstract: A noise-suppressing, coil-type, electrical cable which is resistant to high voltage includes an elongated core and a helically wound resistance wire. An insulation layer is provided over the resistance wire on the core. The wire has a tensile strength of at least 100 grams force, an elongation to break of at least 15%, a diameter between about 45 and 70 .mu.m, and a resistivity of approximately 10 to 50 .mu..OMEGA..multidot.cm. There are at least 7,000 turns per meter of the wire wound around the core, and the cable has a resistance value of approximately 2 to 4 .OMEGA.k/m. Cables of the foregoing type provide reduced resistance and maintain their ability to suppress noise.
    Type: Grant
    Filed: September 25, 1996
    Date of Patent: October 20, 1998
    Assignee: Sumitomo Wiring Systems, Ltd.
    Inventors: Makoto Higashikozono, Hiroshi Inoue
  • Patent number: 5196822
    Abstract: A resistance stack for terminating a data bus cable includes a stack of resistor chips, each having two conductively plated through holes. The resistance elements are kept in alignment and electrically connected to leads of the data bus cable by elongated members extending through the through holes. The elongated members may be discrete conductive rods, or soldered and pre-tinned leads of the cable. To facilitate assembly, solder preforms are provided between each of the resistor chips. The resistance stack is enclosed in a package which includes a cylindrical shell, a cable clamp, a cable strain relief member, and an end cap including a track for accommodating extensions of the elongated members beyond the last resistor in the stack, thereby aligning the elongated members. The package may be both electrically shielded and environmentally sealed.
    Type: Grant
    Filed: December 12, 1991
    Date of Patent: March 23, 1993
    Assignee: Amphenol Corporation
    Inventors: David O. Gallusser, Jon P. Bixby, James B. LeBaron
  • Patent number: 5139862
    Abstract: An electronic device for conducting electric current has two contacting components at least one of which is a nonmetallic electronic contact in the form of a pultruded composite member made of a plurality of small generally circular cross section conductive fibers in a polymer matrix, the fibers being oriented in the matrix in a direction substantially parallel to the axial direction of the pultruded composite member and being continuous from one end of the member to the other to provide a plurality of electrical point contacts at each end of the member.
    Type: Grant
    Filed: December 11, 1991
    Date of Patent: August 18, 1992
    Assignee: Xerox Corporation
    Inventors: Joseph A. Swift, Stanley J. Wallace, Wilbur M. Peck
  • Patent number: 5101190
    Abstract: A non-metal controlled high resistance electric cable formed by wrapping a center strength member of insulating microporous polytetrafluoroethylene with a narrow strip of conductive carbon-filled microporous polytetrafluoroethylene and jacketing the wrapped strand with an insulating microporous polytetrafluorethylene or polyester jacket. The microporous polytetrafluorethylene layers are preferably sintered and the optional polyester layer is preferably fused.
    Type: Grant
    Filed: March 28, 1990
    Date of Patent: March 31, 1992
    Assignee: W. L. Gore & Associates, Inc.
    Inventors: Roddy M. Bullock, Vu A. Lai
  • Patent number: 5059938
    Abstract: An ignition cable having a resistance wire helically wound around a strength member to form a conductive core. A very thin adhesive layer is applied over the conductive core and is overlaid with a semi-conductive layer of a cross-linked thermosetting material. The cross-linked thermosetting material is extruded over the adhesive layer to form a smooth surface. A layer of insulating material and a protective jacket are applied over the insulating layer. A braid may be added intermediate the insulating layer and the jacket to increase the mechanical strength of the ignition cable.
    Type: Grant
    Filed: April 16, 1990
    Date of Patent: October 22, 1991
    Assignee: Prestolite Wire Corporation
    Inventor: Karl M. Brown
  • Patent number: 5057812
    Abstract: A high-tension resistance cable capable of maintaining a distributed capacitance not greater than 80 pF/m while having an outer diameter not greater than 5 mm includes a central resistance conductor which is no more than 0.8 mm in diameter. In one embodiment, the resistance is formed of a reinforcement core, a ferrite core layer, and a metal winding layer. In the metal winding layer, wires, having an outer diameter of 0.04 to 0.045 mm, are wound at a density of 91-115 times per centimeter around the ferrite core layer.
    Type: Grant
    Filed: October 15, 1990
    Date of Patent: October 15, 1991
    Assignee: Yazaki Corporation
    Inventors: Yoshimi Yukawa, Toshio Inada, Akira Ikegaya
  • Patent number: 5034719
    Abstract: An ignition cable having a layer of semi-conductive cross-linkable polyolefin extruded over a nonmetallic strength member to form a conductive core. An insulating layer is extruded over the conductive core and overlaid with a braid of glass yarn. A final layer of insulating material is applied over the braid of glass yarn to provide an external jacket. In an alternate embodiment, the braid of glass yarn is omitted.
    Type: Grant
    Filed: April 4, 1989
    Date of Patent: July 23, 1991
    Assignee: Prestolite Wire Corporation
    Inventors: Karl M. Brown, Bruce D. Balcerski
  • Patent number: 4998090
    Abstract: An engine ignition cable in which carbon fiber is mixed with conductive rubber or synthetic resin, to provide a conductive portion in which the resistance value is readily adjusted. The conductive element of the cable is made of carbon fiber of polyacrylo nitrile type. The conductive element is coated with an electro-conductive layer comprising a mixture of polyacrylo nitrile type carbon fiber powder and conductive rubber or synthetic resin mixed in accordance with a predetermined ratio to achieve a predetermined resistance value.
    Type: Grant
    Filed: March 9, 1989
    Date of Patent: March 5, 1991
    Inventor: Hee W. Park
  • Patent number: 4970488
    Abstract: A high voltage cable having a wound conductor made by winding a metallic wire around a ferrite rubber covered reinforcing core, in which the ferrite rubber layer is additionally provided with conductive particles or fibers in order to improve noise suppression characteristics in the 30-200 MHz frequency range.
    Type: Grant
    Filed: February 17, 1989
    Date of Patent: November 13, 1990
    Assignee: Yazaki Corporation
    Inventors: Tsuneyuki Horiike, Toshio Inada, Masahiro Kanda
  • Patent number: 4780700
    Abstract: To prevent generation of corona discharge at terminals of high voltage resistive wires used as ignition cords, a metallic cap is fixed to at least one exposed core wire end by a bonding agent, and further a metallic terminal is fitted to the metallic cap and caulked to the metallic cap and the insulating material simultaneously. The core wire end is thereby sufficiently buried in the bonding agent and protected by the terminal.
    Type: Grant
    Filed: July 14, 1987
    Date of Patent: October 25, 1988
    Assignee: Yazaki Corporation
    Inventors: Seiichi Wakabayashi, Yoshiaki Yamakoshi
  • Patent number: 4748436
    Abstract: To reduce resistance change due to heat and external force, the noise prevention high-voltage resistance wire comprises a non-metallic reinforcing core wire; a conductive composite including gaseous phase growth carbon fiber, in particular; and at least one insulating layer. The gaseous phase growth carbon fiber is obtained by thermal decomposition of hydrocarbon compound with a catalyzer within a reducing atmosphere. Further, the conductive composite further comprises preferably conductive carbon powder such as conductive carbon black or graphite.
    Type: Grant
    Filed: May 21, 1987
    Date of Patent: May 31, 1988
    Assignee: Yazaki Corporation
    Inventors: Yasuo Kanamori, Masahiro Kanda
  • Patent number: 4704596
    Abstract: Automotive ignition wire with a high temperature rating, excellent electrical insulating properties, heat resistance, oil resistance and abrasion resistance is described. The wire utilizes a conductor made up of a glass fiber-cotton fiber braid on a graphite impregnated glass layer. Overcoating the conductor is an adhesion promoting polymer layer, an extruded thermosetting semiconducting polymer layer overcoated with a glass braid layer and a polymer jacket material. The polymer jacket material comprises a polymeric mixture of ethylene vinyl acetate and ethylene-propylene-diene monomer stabilized with a mixture of a phenolic antioxidant and a metal salt antioxidant.
    Type: Grant
    Filed: November 19, 1986
    Date of Patent: November 3, 1987
    Assignee: Essex Group, Inc.
    Inventors: Ronald J. Coffey, Christo M. Wassouf
  • Patent number: 4700171
    Abstract: Automotive ignition wire with a high temperature rating, excellent electrical insulating properties, heat resistance, oil resistance and abrasion resistance is described. The wire utilizes a conductor made up of either a helically wound metal conductor on a radio frequency insulating polymer overcoated on a polymer adhesive layer on a glass fiber bundle; or a glass fiber-cotton fiber braid on a graphite impregnated glass layer. Overcoating either one of the conductors is a semiconducting polymer layer, an ethylene-propylene-diene monomer containing polymer layer optionally overcoated with a glass braid layer and a polymer jacket material. The polymer jacket material comprises a polymeric mixture of ethylene vinyl acetate and ethylene-propylene-diene monomer stabilized with a mixture of a phenolic antioxidant and a metal salt antioxidant.
    Type: Grant
    Filed: December 4, 1986
    Date of Patent: October 13, 1987
    Assignee: United Technologies Corporation
    Inventors: Ronald J. Coffey, Christo M. Wassouf
  • Patent number: 4689601
    Abstract: Automotive ignition wire with a high temperature rating, excellent electrical insulating properties, heat resistance, oil resistance and abrasion resistance is described. The wire utilizes a conductor made up of either a helically wound metal conductor on a radio frequency insulating polymer overcoated on a polymer adhesive layer on a glass fiber bundle; or a glass fiber-cotton fiber braid on a graphite impregnated glass layer. Overcoating either one of the conductors is a semiconducting polymer layer, and a polymer jacket material. The polymer jacket material comprises a polymeric mixture of ethylene vinyl acetate and ethylene-propylene-diene monomer stabilized with a mixture of a phenolic antioxidant and a metal salt antioxidant.
    Type: Grant
    Filed: August 25, 1986
    Date of Patent: August 25, 1987
    Assignee: Essex Group, Inc.
    Inventors: Ronald J. Coffey, Christo M. Wassouf
  • Patent number: 4677418
    Abstract: An ignition cable in which a thin tape or film of ethylene terephthalate is wrapped tightly around an inner layer of rubber insulation, coaxial with the core and inside the outer insulating jacket.
    Type: Grant
    Filed: November 28, 1984
    Date of Patent: June 30, 1987
    Assignee: Carol Cable Company
    Inventor: William Shulver
  • Patent number: 4562317
    Abstract: To increase the resistance against high-voltage flash-over or arc-over of a distributor rotor with a built-in radio noise suppression resistor (5), the radio noise suppression resistor (5) is formed together with the distribution terminal (1) and a central contact terminal (4) in form of a plate (11) in a unitary subassembly, for example by rivet connection of the terminals to end caps (8, 9) on the resistor, the subassembly then being molded into the rotor body (6) during an injection-molding step. To provide for mechanical strength, the resistor preferably includes fiber-reinforced epoxy as a substrate or carrier, or as a jacket. Preferably, the contact plate (11) is placed at a level below that of the resistor (5) and surrounded by an insulating jacket of increasing thickness towards the plate, so that the thickness of insulating material with respect to adjacent grounded or chassis connection elements, such as an attachment flange or screw bushing (17) is increased.
    Type: Grant
    Filed: July 30, 1984
    Date of Patent: December 31, 1985
    Assignee: Robert Bosch GmbH
    Inventors: Richard Gerber, Dieter Trautwein
  • Patent number: 4456900
    Abstract: A high frequency coil including an inductance device formed by fitting a pair of electrode caps at both ends of a ferrite magnetic core wound by a winding on a peripheral surface of the core; a heat resistant electric insulating coated layer formed on the peripheral surface of the inductance device and a heat resistant electric insulating resilient tube fitted onto the peripheral surface of the coated inductance device.
    Type: Grant
    Filed: May 6, 1981
    Date of Patent: June 26, 1984
    Assignees: TDK Electronics Co., Ltd., NGK Spark Plug Co., Ltd.
    Inventors: Yohtaro Toyoshima, Yasuhiro Sasaki, Minoru Uchida
  • Patent number: 4435692
    Abstract: An ignition cable for supplying voltage to the spark plugs of an internal combustion engine, the cable having a low electrostatic capacity such that it does not produce noise in an FM radio frequency band. A central reinforcing string made of aramido-type fibers is covered by a ferrite core. A resistance wire having 8,000-14,000 turns/meter is wound onto the core. The assembly is then coated with a polyolefin insulation layer, a crossed-fiber reinforcement layer, and a silicon sheath, respectively.
    Type: Grant
    Filed: December 28, 1982
    Date of Patent: March 6, 1984
    Assignees: Sumitomo Electric Industries, Ltd., Nippondenso Co., Ltd.
    Inventors: Yoshimi Miyamoto, Naotaka Nakamura, Fumiyoshi Akaku, Katsumi Koto, Tsutomu Kosaka
  • Patent number: 4431982
    Abstract: Compositions which cure to electrically conductive silicone elastomers containing greater than 2 percent by weight of phenyl radicals, are disclosed. The compositions comprise a mixture of polydiorganosiloxane and greater than 15 percent by weight of electrically conductive carbonaceous particles of less than 20 micrometers average diameter. Electrically conductive members of controlled resistivity are manufactured using these compositions. These electrically conductive members are useful as the core for improved automotive ignition cable. The ignition cable has a long useful life.
    Type: Grant
    Filed: June 12, 1981
    Date of Patent: February 14, 1984
    Assignee: Dow Corning Corporation
    Inventors: Carl M. Monroe, Randall P. Sweet
  • Patent number: 4393282
    Abstract: The part of the distributor electrode in the breakdown region has a resistance of at least 400 ohms per millimeter. The total resistance of the electrode is in the range of between 0.5 and 1.0 kilo-ohms. The material is a mixture of a resistive ceramic material and a finely dispersed additive of metallic conductivity. Arrangements for creating surface discharge gaps thereby slowing down the sparking process and decreasing interference are also illustrated.
    Type: Grant
    Filed: March 18, 1981
    Date of Patent: July 12, 1983
    Assignee: Robert Bosch GmbH
    Inventors: Werner Grunwald, Ernst Zehender, Karl-Hermann Friese, Jurgen Schmatz, Hans Neu, Kuno Kirner, Bernd Schumacher
  • Patent number: 4378550
    Abstract: A process for forming ignition cable core and a product of the process are described wherein multiple strength filaments are individually coated with an electrically conductive, curable elastomeric material, a common overcoating surrounding the mixture, then cabled together and again coated with the individually coated strength filaments in order to form the core for an ignition cable which is characterized by improved resistance to separation between the filament and conductive coating, for example, when the ignition cable core is stripped for electrical termination.
    Type: Grant
    Filed: October 24, 1980
    Date of Patent: March 29, 1983
    Assignee: Belden Corporation
    Inventors: Edwin L. Yochum, William G. Smith
  • Patent number: 4375632
    Abstract: A high voltage ignition cable is described comprising a resistive-conductor core, an insulator layer, and a jacket, wherein the resistive-conductor core comprises a tension member, a semiconductive internal layer, a semiconductive external layer, and a stripping layer interposed between the semiconductive internal layer and the semiconductive external layer.
    Type: Grant
    Filed: February 2, 1981
    Date of Patent: March 1, 1983
    Assignees: Sumitomo Electric Industries, Ltd., Nippondenso Co., Ltd.
    Inventors: Yoshimi Miyamoto, Keiichi Kojima, Yasuo Toriumi
  • Patent number: 4369423
    Abstract: A composite electrically conductive cable assembly for use as an ignition cable or the like. The assembly comprises an electrically conductive core comprising a plurality of mechanically and electrically continuous graphite filaments, and an electrically insulating elastomeric jacket which surrounds and envelopes the said filaments. The filaments preferably comprise graphitized polyacrylonitrile.
    Type: Grant
    Filed: August 20, 1980
    Date of Patent: January 18, 1983
    Inventor: Matthew W. Holtzberg
  • Patent number: 4366464
    Abstract: A high voltage ignition cable is described comprising a resistive-conductor core, an insulator layer provided thereon, and a jacket, wherein said insulator layer comprises a cross-linked product of a polymer composition consisting of crystalline polyethylene and a non-crystalline olefin polymer.
    Type: Grant
    Filed: February 2, 1981
    Date of Patent: December 28, 1982
    Assignees: Sumitomo Electric Industries, Nippondenso Co., Ltd.
    Inventors: Yoshimi Miyamoto, Keiichi Kojima, Yasuo Toriumi
  • Patent number: 4363019
    Abstract: A high voltage ignition cable having low capacitance comprising a resistive-conductor core, an insulator layer, and a jacket, wherein the resistive-conductor core comprises a tension member prepared by intertwining a plurality of polyaramide fiber bundles around a central polyaramide fiber bundle, is described.
    Type: Grant
    Filed: February 2, 1981
    Date of Patent: December 7, 1982
    Assignees: Sumitomo Electric Industries, Nippondenso Co., Ltd.
    Inventors: Yoshimi Miyamoto, Keiichi Kojima, Yasuo Toriumi
  • Patent number: 4270114
    Abstract: A device for inclusion in the ignition current circuit of internal combustion engines in which a body of electrically conductive, irregularly shaped metal granules forms a flowpath in the form of a labyrinth between a pair of end terminals. Compaction pressure and, preferably, inclusion of non-electrically conductive granules is employed to adjust the direct current conductivity of the body of granules.
    Type: Grant
    Filed: April 7, 1980
    Date of Patent: May 26, 1981
    Inventor: David L. Cannom
  • Patent number: 4004183
    Abstract: A resistor built-in spark plug comprising an insulator formed therein with an axially extending bore, a terminal nut fitted in an upper end portion of the bore, a center electrode fitted in a lower end portion of the bore, a resistor arranged in a central portion of the bore, one copper-glass electrode interposed between the resistor and the terminal nut, and another copper-glass electrode interposed between the resistor and the center electrode, such resistor being made by firing (calcining) and solidifying a resistor powder mixture consisting of 30 to 10 volume % of a principal resistor component containing tin oxide, 35 to 85 volume % of insulating ceramic filler powder of a higher electric resistivity than the principal resistor component which is selected from the group consisting of quartz glass, alumina, zircon, zirconia, silica (SiO.sub.2) and .beta.-spodumene, and 35 to 5 volume % of glass powder having a softening temperature in a range between 300.degree. and 600.degree. C.
    Type: Grant
    Filed: April 30, 1975
    Date of Patent: January 18, 1977
    Assignees: Nippondenso Co., Ltd., Kabushiki Kaisha Toyota Chuo Kenkyusho
    Inventors: Masami Oki, Masatoshi Suzuki, Yasuo Nakamura, Osami Kamigaito, Hideyuki Masaki
  • Patent number: 3965879
    Abstract: An ignition wiring system having the leads formed as a wire coil about a magnetizable core defines a distributed constant resistive-inductive series impedance. A metal shield is located over the spark plug proper and electrically connected to the engine ground. A flexible shield extension in the form of a coil extends over the lead from beneath the shield. The shield and shield extension introduce distributed capacitance between the special lead and engine ground. The combination of the shield and shield extension with the special lead forms a distributed constant RLC filter which produces RFI suppression. The shield and shield extension confine the electromagnetic radiation emanating from that portion of the lead where the radiation is strongest, thereby enhancing the suppression. The rapid discharge by the spark plug of the stored energy contained in the distributed capacitance increases the spark intensity and promotes more complete combustion.
    Type: Grant
    Filed: March 26, 1974
    Date of Patent: June 29, 1976
    Assignee: Brunswick Corporation
    Inventor: Arthur O. Fitzner
  • Patent number: 3967230
    Abstract: A resistor built-in spark plug comprises an insulator formed with an axially extending inner hole, a stem fitted in the upper part of said hole in said insulator, a center electrode fitted in the lower part of said hole, a resistor disposed in the central part of said hole, and copper-glass electrode layers disposed between said resistor and said stem and between said resistor and said center electrode. Said resistor is made by firing and solidifying powder of resistor mixture consisting of 75 to 38 volume percent of main resistor component containing tin oxide and 25 to 62 volume percent of glass powder with softening temperature of 300.degree. to 600.degree.C. Said copper-glass electrode layers are made by firing and solidifying a mixture of copper powder and glass powder with the softening temperature of above 530.degree.C and more than 30.degree.C higher than the softening point of glass in the resistor portion.
    Type: Grant
    Filed: October 22, 1974
    Date of Patent: June 29, 1976
    Assignees: Nippondenso Co., Ltd., Kabushiki Kaisha Toyota Chuo Kenkyusho
    Inventors: Osami Kamigaito, Haruo Doi, Hideyuki Masaki, Toshio Kandori, Masami Oki, Yasuo Nakamura