Lightning Protection Patents (Class 174/2)
  • Patent number: 10763657
    Abstract: A portable lightning protection system including a multi-section conductive mast assembly including at least a base mast section and a top mast section; an air terminal attachable to the top mast section; and a base assembly attachable to the base mast section via a hinge assembly, wherein the hinge assembly may be configured to allow the base mast section to hinge relative to the base assembly. A catenary lightning protection system including at least two lightning protection systems, each lightning protection system may include a multi-section conductive mast assembly including at least a base mast section and a top mast section; an air terminal attachable to the top mast section; a base assembly attachable to the base mast section; and may further include a catenary wire connected between the at least two lightning protection systems.
    Type: Grant
    Filed: February 17, 2017
    Date of Patent: September 1, 2020
    Assignee: LBA Group, Inc.
    Inventor: Lawrence Behr
  • Patent number: 10458123
    Abstract: A composite siding panel mountable on an exterior wall of a building includes a backing member and a siding member attached to the backing member, wherein the first side edge of the siding member overhangs the first side edge of the backing member, and the second side edge of the siding member is aligned with or positioned contiguously with the second side edge of the backing member. An adhesive coating joins the front face of the backing member to the rear face of the siding member. The adhesive coating runs substantially from the first side edge of the backing member to the second side edge thereof. The backing member can be composed of closed-cell expanded foam or wire-fabricated foam, and the siding member can be formed from vinyl, polypropylene, aluminum, steel, fiberglass, engineered wood, or fiber cement. A siding assembly including a plurality of composite siding panels adjacently mountable on an exterior wall of a building is also disclosed.
    Type: Grant
    Filed: January 18, 2018
    Date of Patent: October 29, 2019
    Assignee: Progressive Foam Technologies, Inc.
    Inventors: Patrick M. Culpepper, Ryan Beach
  • Patent number: 10454251
    Abstract: A disconnector device for a surge arrester is provided. The disconnector device includes: a housing encompassing a cavity; a disconnector provided inside the cavity, having a first terminal connectable to the surge arrester, a second terminal connectable to ground, a movable member provided at the second terminal and being fitted to the cross section of the cavity, and a disconnector cartridge. The member is movably arranged such in the housing that once the disconnector operates, the movable member is propelled inside the cavity towards an end of the cavity. The housing has ventilation openings connecting the cavity to an outside of the disconnector device for releasing gases from the operating disconnector cartridge. These ventilation openings are dimensioned such that no particles of harmful size that are potentially capable of igniting a fire can pass the ventilation openings.
    Type: Grant
    Filed: August 29, 2018
    Date of Patent: October 22, 2019
    Assignee: ABB Schweiz AG
    Inventors: Remo Mugwyler, Nicola Gariboldi, Joel Antelo
  • Patent number: 10358839
    Abstract: A cross-bracing arrangement is provided for bracing between two hollow structural poles. The bracing arrangement provides for pivoting between the cross-brace and each of the hollow structural poles, for adjustment of the effective length of the cross-brace, and for angular adjustment of one end of the cross-brace relative to the other end of the cross-brace.
    Type: Grant
    Filed: April 27, 2017
    Date of Patent: July 23, 2019
    Assignee: Valmont Industries, Inc.
    Inventors: Diaaeldin Mohamed, Anthony J. Hansen, Tony Schuler, Shannon R. Eggert
  • Patent number: 10239636
    Abstract: A method for manufacturing a panel made of composite material incorporating a lightning protection arrangement which comprises strips with a conductive layer. The method comprises a step of laying the strips in an automated manner, the strips having a width of less than 20 mm and being distributed in a first set of mutually parallel strips that are laid in a first laying direction and a second set of mutually parallel strips that are laid in a second laying direction that intersects the first laying direction. A panel made of composite material manufactured by way of this method is also disclosed.
    Type: Grant
    Filed: November 9, 2015
    Date of Patent: March 26, 2019
    Assignee: AIRBUS OPERATIONS SAS
    Inventors: Cyrille Collart, Richard Murillo
  • Patent number: 10205228
    Abstract: A system for emitting and/or receiving electromagnetic waves embedded in an aircraft, the aircraft including an emitting and/or receiving device for emitting and/or receiving electrical signals, a radome having an electrically insulating protective envelope (12), on which at least one lightning arrester strip (21) is arranged, the radome being attached to a metal frame of the aircraft (30), a first part of the at least one lightning arrester strip is electrically connected to the metal frame of the aircraft, a second part of the at least one lightning arrester strip is connected to the emitting and/or receiving device via a metal element (35) of a predetermined shape, the at least one lightning arrester strip forming an antenna and a part of the metal element (35) is placed at a predetermined distance (d) from a part of the metal frame of the aircraft (30) for forming a capacitive link between the metal element and the metal frame of the aircraft.
    Type: Grant
    Filed: August 3, 2017
    Date of Patent: February 12, 2019
    Assignee: Airbus Operations (S.A.S.)
    Inventors: Christophe Bernus, Jean Redon, Nathalie Esteve, C├ęcile Poret, Andrei Bulancea
  • Patent number: 10199812
    Abstract: A shielded conductive path (Wa) includes: a shielding pipe that encloses first and second electrical wires together; a first insertion path that is formed inside the shielding pipe and into which the first electrical wire is inserted; a second insertion path that is formed inside the shielding pipe, is separated from the first insertion path by a partition wall, and into which the second electrical wire is inserted; and a shielding tube that includes at least a portion of a flexible shielding member that is tubular. The shielding tube is connected to an end portion of the first insertion path so as to prevent the first and second electrical wires from being affected by electromagnetic noise therefrom.
    Type: Grant
    Filed: November 13, 2015
    Date of Patent: February 5, 2019
    Assignees: AutoNetworks Technologies, Ltd., Sumitomo Wiring Systems, Ltd., SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventor: Yoshio Mizutani
  • Patent number: 10051767
    Abstract: A method and apparatus for covering a fastener system. In one illustrative embodiment, an apparatus comprises a cover. The cover is configured to be placed over a fastener system at a surface of an object in which the fastener system is installed. The cover is comprised of a number of composite materials selected such that the cover is configured to reduce an effect of an electrical discharge, which occurs around the fastener system, on an environment outside the cover.
    Type: Grant
    Filed: May 29, 2015
    Date of Patent: August 14, 2018
    Assignee: The Boeing Company
    Inventors: Ilsop Steven Yoon, Kevin Darrell Pate, Carissa Ann Pajel, Todd Michael Alberts, Darrin Michael Hansen
  • Patent number: 9983615
    Abstract: A splitter cord for use with a power pedestal including a plurality of receptacles, the splitter cord includes a plurality of branch circuits each having a first end including a connector structured to electrically connect to one of the plurality of receptacles, a second end electrically connected to a common node, and a current regulator electrically connected between the first and second ends and being structured to control current flowing through said branch circuit such that current exiting said one receptacle is substantially equal to current entering said one receptacle, and a stem circuit having a first end including a connector structured to electrically connect to a device or vehicle receptacle and a second end electrically connected to the common node. A sum of currents flowing through the plurality of branch circuits is equal to current flowing through the stem circuit.
    Type: Grant
    Filed: February 9, 2016
    Date of Patent: May 29, 2018
    Assignee: EATON INTELLIGENT POWER LIMITED
    Inventors: Chris Emmons Drueke, Jeffery Scott Kuykendall, Paul David Seff, Jason Demetrios Easton
  • Patent number: 9912137
    Abstract: A multilayer composite structure with integrated fastener-to-conductive layer surface lightning protection interconnection employs a conductive layer with an inner surface and a plurality of chamfered recesses forming countersinks in an outer surface. A carbon-fiber reinforced plastic (CFRP) composite layer is disposed on the inner surface of the conductive layer and conforms to the surface shape. A plurality of holes extend through the plurality of chamfered recesses in the conductive layer and the adjoining CFRP composite layer in a manner such that the conductive layer defines a countersink portion extending into the openings of the plurality of holes. The chamfered recesses in the conductive layer provides an electrically conductive surface area that contacts conductive countersunk fasteners installed within the plurality of holes to enable current sharing between groups of neighboring fasteners.
    Type: Grant
    Filed: October 5, 2015
    Date of Patent: March 6, 2018
    Assignee: The Boeing Company
    Inventors: Quynhgiao Le, Jeffrey Denys Morgan, Robert B. Greegor, Brent A. Whiting
  • Patent number: 9885197
    Abstract: A lightning protection and safety rail system comprising a number of bases, vertical posts, horizontal rails, caps, mounting brackets, and lightning cables. The bases anchor the system to an elevated surface. The vertical posts extend upward from the bases. The horizontal rails extend between the vertical rails. The caps are positioned at tops of the vertical posts. The lightning cables are connected to the caps via the mounting brackets and are configured to be connected to an electrical ground. Lightning current travels from the caps, through the lightning cables, and to the electrical ground. Lightning current may also pass through the horizontal rails to a lightning cable attached to another cap.
    Type: Grant
    Filed: May 1, 2014
    Date of Patent: February 6, 2018
    Inventors: Kenneth Ray Pettlon, II, Kristopher Aaron Pettlon
  • Patent number: 9820367
    Abstract: The present disclosure relates to the passive initiation and release of incident energy-dissipating material from locations on an incident energy target surface as a counter measure response for the protection of a platform. The response is activated over a predetermined area or areas on an incident energy target surface in response to an incident directed energy sensed on a target surface.
    Type: Grant
    Filed: July 1, 2013
    Date of Patent: November 14, 2017
    Assignee: THE BOEING COMPANY
    Inventors: Mark J. Clemen, Jr., Alan F. Stewart, John R. Hull, Keith J. Davis
  • Patent number: 9728948
    Abstract: A lightning protector device for laying on a structure that is to be protected the device comprises: a surface coating including at least one conductive paint layer. A plurality of electrically conductive elements is arranged in spaced-apart manner on the structure, and the elements are in contact with the conductive paint layer. A protective coating is arranged on the surface coating and comprises a material that is thermally insulating and electrically conductive. The protective coating covers the electrically conductive elements in part.
    Type: Grant
    Filed: April 3, 2013
    Date of Patent: August 8, 2017
    Assignee: HERAKLES
    Inventors: Thierry Soulignac, Florine Bombled, Francois M. Issac, Guillaume Sierra, Philippe P. Desvergnes, Aurelien Cailler
  • Patent number: 9689418
    Abstract: A reduced-corrosion assembly includes a first and a second component joined by a fastener having a head and a body. A coating covers a section of the body. The assembly also includes a washer, a compression limiter, and a nut arranged on the first component and adapted to engage the fastener body to thereby tighten the assembly. When the assembly is tightened, the compression limiter is arranged on the fastener body between the first and second components, while the second component is arranged on the fastener body between the compression limiter and the washer. Furthermore, the washer is arranged on the fastener body between the fastener head and the second component, while the coating covers the body substantially up to where the nut engages the body such that corrosion of the assembly is limited or reduced. A vehicle employing the reduced-corrosion fastening system is also provided.
    Type: Grant
    Filed: December 15, 2010
    Date of Patent: June 27, 2017
    Assignee: GM Global Technology Operations LLC
    Inventors: William A. Schumacher, Louis Meli, Shawn G. Quinn, Brian J. Schachermeyer, Milind S. Gandhi, David B. DeClerck
  • Patent number: 9685774
    Abstract: A lightning protection system for liquid storage tanks having floating roofs wherein lightning energy is not directed into the shell of the storage tank. The lightning protection system includes at least one low-resistance low-impedance bypass conductor cable configured for lightning related frequencies and for routing lightning energy and for bounding charges away from the shell of the storage tank.
    Type: Grant
    Filed: January 16, 2014
    Date of Patent: June 20, 2017
    Assignee: Alltec LLC
    Inventors: Christopher A. Bean, James Stuart Grasty, Jr.
  • Patent number: 9643734
    Abstract: An electromagnetic energy protection system and method disclosed herein that includes a plurality of conductive sheets ohmically connected by conductive interconnects. The conductive interconnects can be metal formed by a metal deposition process. The metal deposition process can include a plasma deposition process. The conductive interconnects can help prevent the formation of surface deformities such as bumps that may be caused when connecting, either physically or electrically, adjacent conductive sheets.
    Type: Grant
    Filed: March 18, 2013
    Date of Patent: May 9, 2017
    Assignee: THE BOEING COMPANY
    Inventors: Robert Marshall Burgess, Joseph A. Marshall
  • Patent number: 9614360
    Abstract: A lightning protection device for placing on a structure for protecting, and including a first coating including at least one layer of conductive paint; and a second coating deposited on the surface coating and including a material that is thermally insulating and electrically conductive.
    Type: Grant
    Filed: January 9, 2014
    Date of Patent: April 4, 2017
    Assignee: HERAKLES
    Inventors: Thierry Soulignac, Florine Bombled, Guillaume Sierra
  • Patent number: 9499983
    Abstract: Trusses comprising natural round timbers as top and bottom cords are provided. Also provided are truss and column assemblies comprising natural branched round timber columns connected to a truss.
    Type: Grant
    Filed: April 22, 2015
    Date of Patent: November 22, 2016
    Assignee: Whole Trees, LLC
    Inventor: Roald Gundersen
  • Patent number: 9484731
    Abstract: A bipolar lightning rod apparatus includes a fixation plate, a rod member configured to have one end connected to the fixation plate in a length direction thereof and charged with the electric charges of a ground, at least two insulators installed in the length direction, an electrification plate installed between adjacent insulators, electrically insulated from the rod member, and charged with electric charges having an opposite polarity to the electric charges of the ground, an electrification tube installed between the electrification plate and the insulators, electrically connected to the electrification plate, and charged with electric charges having an opposite polarity to the electric charges of the ground, and a rod cap connected to the top of the rod member and configured to induce the falling of a thunderbolt. The rod cap has an outside diameter greater than that of the insulators.
    Type: Grant
    Filed: December 30, 2013
    Date of Patent: November 1, 2016
    Assignee: THE KOREA DEVELOPMENT BANK
    Inventor: Young-Ki Chung
  • Patent number: 9465085
    Abstract: The present invention relates to a test system for high-voltage technology devices, in particular shunt reactors, as defined in the preamble of independent patent claim 1. The invention also relates to a method which can be carried out with this test system and is intended to test high-voltage technology devices according to coordinate patent claim 5. The general idea of the test system according to the invention is to provide a continuously adjustable inductance and a capacitance, which can be adjusted in discrete steps, on the secondary side of the test transformer in such a manner that said components form a series resonant circuit together with the test object in the form of an inductance.
    Type: Grant
    Filed: January 15, 2013
    Date of Patent: October 11, 2016
    Assignee: MASCHINENFABRIK REINHAUSEN GMBH
    Inventors: Martin Hinow, Uwe Stephan, Guenther Siebert, Ralf Bergmann, Andreas Thiede
  • Patent number: 9447992
    Abstract: A geothermal system with earth grounding component for providing electrical grounding is introduced. The geothermal system includes: a geothermal component configured to perform heat exchange; wherein the geothermal component comprises at least one heat exchange tube configured to extend into an underground environment; and an earth grounding component configured to provide earth grounding for electronic equipment; wherein the earth grounding component includes at least one conductive rod coupled to and extended along the at least one heat exchange tube, and the at least one conductive rod is configured to electrically couple to a grounding interface of the electronic equipment.
    Type: Grant
    Filed: November 12, 2012
    Date of Patent: September 20, 2016
    Assignee: Futurewei Technologies, Inc.
    Inventors: Kelly Johnson, Pedro Fernandez
  • Patent number: 9331603
    Abstract: An energy collection system may collect and use the energy generated by an electric field. Collection fibers are suspended from a support system. The support system is electrically connected to a load by a connecting wire. The collection fibers may be made of any conducting material, but graphene, carbon and graphite are preferred. Diodes may be used to restrict the backflow or loss of energy.
    Type: Grant
    Filed: August 7, 2014
    Date of Patent: May 3, 2016
    Assignee: Ion Power Group, LLC
    Inventor: Clint McCowen
  • Patent number: 9203177
    Abstract: A shielded connector unit includes a lower shielded connector to be connected downwards to a lower positioned first instrument, an upper shielded connector to be connected sideways to a second instrument positioned above the first instrument, and a flexible conductive part made up of an electric wire which is adapted to connect the lower shielded connector to the upper shielded connector and a braid which is adapted to enclose a bare portion of the electric wire existing between a shielding shell of the lower shielded connector and a shielding shell of the upper shielded connector. The shielded connector unit further includes a hard protector that is adapted to enclose and protect the conductive part from the outside while ensuring flexibility of at least a portion of the conductive part.
    Type: Grant
    Filed: May 13, 2014
    Date of Patent: December 1, 2015
    Assignee: YAZAKI CORPORATION
    Inventors: Masahiro Tanaka, Hajime Kato
  • Patent number: 8998124
    Abstract: A device has a first electrically conductive component, a second electrically conductive component, and an electrically conductive nanocoating (ECN) electrically connecting the first electrically conductive component to the second electrically conductive component. An aircraft has an engine, a fuselage, and a device having a first electrically conductive component, a second electrically conductive component, and an electrically conductive nanocoating (ECN) electrically connecting the first electrically conductive component to the second electrically conductive component. A method of providing an electrical conduction path includes providing a first electrically conductive component, providing a second electrically conductive component, and decreasing an electrical resistance between the first electrically conductive component and the second electrically conductive component using an electrically conductive nanocoating (ECN).
    Type: Grant
    Filed: March 7, 2013
    Date of Patent: April 7, 2015
    Assignee: Bell Helicopter Textron Inc.
    Inventors: Daniel P. Sottiaux, Hunter Davis
  • Patent number: 8999097
    Abstract: A fabrication method for providing a relatively smooth surface associated with lightning strike protection for composite materials joined with fasteners recessed below the surface is described. The method includes coating at least one of a head of the fastener and a preformed dielectric insert with an adhesive, inserting the preformed dielectric insert into the recess such that the adhesive engages both contours of the recess and the preformed dielectric insert, and removing any excess adhesive from the surface area of the composite material and a top surface of the insert.
    Type: Grant
    Filed: April 12, 2010
    Date of Patent: April 7, 2015
    Assignee: The Boeing Company
    Inventors: Kathryn Louise Gehrett, James Francis Kirchner, Kelly Lee Clark
  • Patent number: 8859895
    Abstract: A method for vertically grounding and leading down form a center of a composite pole tower includes the following steps: extending a ground down-leading wire from a center of a ground wire cross arm which is made of metal and is positioned on top of the pole tower, wherein the ground down-leading wire is vertically leaded down to the earth form the center of the composite pole tower, wherein when an lower portion of the tower body is a metal pipe, the ground down-leading wire is extended from the center of the composite material and is directly connected to the metal pipe. The method utilizes the advantage of the insulating intensity of the wall of the composite pole tower and enhances the insulating intensity of the transmission line on impact of lightning. The ground down-leading wires are prevented from short-circuiting with the tower body of the composite pole tower, so that advantage of the insulating property of the composite material of the pole towers is realized.
    Type: Grant
    Filed: May 5, 2010
    Date of Patent: October 14, 2014
    Assignee: State Grid Electric Power Research Institute
    Inventors: Zhusen Sun, Qiang Zhang, Minghua Li, Zhijun Li, Ting Liu, Feng Huo, Min Dai, Kai Liu, Xiong Wu, Dingxie Gu, Peihong Zhou, Ying Lou, Zhenqiang Li, Huiwen He
  • Publication number: 20140252164
    Abstract: A device has a first electrically conductive component, a second electrically conductive component, and an electrically conductive nanocoating (ECN) electrically connecting the first electrically conductive component to the second electrically conductive component. An aircraft has an engine, a fuselage, and a device having a first electrically conductive component, a second electrically conductive component, and an electrically conductive nanocoating (ECN) electrically connecting the first electrically conductive component to the second electrically conductive component. A method of providing an electrical conduction path includes providing a first electrically conductive component, providing a second electrically conductive component, and decreasing an electrical resistance between the first electrically conductive component and the second electrically conductive component using an electrically conductive nanocoating (ECN).
    Type: Application
    Filed: March 7, 2013
    Publication date: September 11, 2014
    Applicant: BELL HELICOPTER TEXTRON INC.
    Inventors: Daniel P. Sottiaux, Hunter Davis
  • Patent number: 8786994
    Abstract: A configuration includes a surge arrester. The surge arrester includes first and second connecting terminals. At least one connecting terminal is connected to an electrically conductive connecting path to contact the surge arrester. The connecting path is mounted in a universally jointed manner.
    Type: Grant
    Filed: January 21, 2009
    Date of Patent: July 22, 2014
    Assignee: Siemens Aktiengesellschaft
    Inventors: Gundolf Barenthin, Erhard Pippert, Dirk Springborn, Markus Sulitze
  • Patent number: 8785769
    Abstract: A method for vertically grounding and leading down form an inner side of a composite pole tower and pole tower thereof, wherein the method includes the following steps: extending an upper metal cross arm from an extended line of at least one side of a ground wire cross arm which is made of metal, vertically leading down a ground down-leading wire from a distal end of the upper metal cross arm, connecting the ground down-leading wire to the pole tower via a lower metal cross arm at a distance under a lower lead, and grounding the ground down-leading wire along a tower body of the pole tower, wherein when an lower portion of the tower body is a metal pipe, the ground down-leading wire is selectively directly connected to the metal pipe via the lower metal cross arm. The upper metal cross arm and the lower cross arm are able to provide a distance between the ground down-leading wire and the pole tower.
    Type: Grant
    Filed: May 14, 2010
    Date of Patent: July 22, 2014
    Assignees: Shenzhen Power Supply Burea of Guangdong Power Grid Corp., State Grid Electric Power Research Institute
    Inventors: Zhijun Li, Hanming Li, Ting Liu, Qianhu Wei, Feng Huo, Ming Zhan, Min Dai, Shicong Deng, Kai Liu, Ning Cao, Xiong Wu, Yuhua Zhang, Dingxie Gu, Weicai Zhou, Peihong Zhou, Zhenqiang Li, Ying Lou, Huiwen He
  • Patent number: 8785768
    Abstract: A method for vertically grounding and leading down form an outer side of a composite pole tower and pole tower thereof, wherein the method includes the following steps: extending an upper metal cross arm from an extended line of at least one side of a ground wire cross arm, vertically leading down a ground down-leading wire from a distal end of the upper metal cross arm, connecting the ground down-leading wire to the pole tower via a lower metal cross arm at a distance under a lower lead, and grounding the ground down-leading wire along a tower body of the pole tower, wherein when an lower portion of the tower body is a metal pipe, the ground down-leading wire is selectively directly connected to the metal pipe via the lower metal cross arm.
    Type: Grant
    Filed: May 5, 2010
    Date of Patent: July 22, 2014
    Assignees: Shenzhen Power Supply Burea of Guangdong Power Grid Corp., State Grid Electric Power Research Institute
    Inventors: Hanming Li, Zhijun Li, Qianhu Wei, Ting Liu, Shicong Deng, Feng Huo, Ming Zhan, Min Dai, Weicai Zhou, Kai Liu, Yuhua Zhang, Xiong Wu, Ning Cao, Dingxie Gu, Peihong Zhou, Huiwen He, Ying Lou, Zhenqiang Li
  • Patent number: 8759692
    Abstract: A composite gasket for sealing, lightning strike protection and EMI shielding is provided. The gasket has a resilient conductive mesh sheet embedded with an elastomer gel layer. The conductive mesh is corrugated to provide a series of repeating waveforms, providing the gasket with a lower deflection force, better corrosion resistance, protection against lightning strikes and a higher EMI shielding capability. A second elastomer can be used around the edge portions of the gasket for improved abrasion resistance and increased tensile strength. A fiberglass sheet can be incorporated in the mesh for added reinforcement and support. The gaskets of the invention can be used on external aircraft components, such as external aircraft antenna mounts.
    Type: Grant
    Filed: December 7, 2012
    Date of Patent: June 24, 2014
    Assignee: Parker-Hannifin Corporation
    Inventors: Michael H. Bunyan, George R. Watchko, William G. Lionetta
  • Publication number: 20140096991
    Abstract: Provided is a coupling structure for airframe components that is capable of ensuring sufficient lightning protection capability. A conductive pattern part 40 made of a conductive material is formed around each fastener member 24 between wing surface panels 21A and 21B. The conductive pattern part 40 is formed, for example, around each of holes 21c and 21d on the plane on which the wing surface panel 21A and the wing surface panel 21B abut against each other. Then, the conductive pattern part 40 is pushed against both the wing surface panel 21A and the wing surface panel 21B by the fastening power of the fastener members 24, whereby electrical conduction between the wing surface panel 21A and the wing surface panel 21B can be achieved.
    Type: Application
    Filed: December 11, 2013
    Publication date: April 10, 2014
    Applicant: MITSUBISHI AIRCRAFT CORPORATION
    Inventors: Koji KAWAHARA, Hideo YAMAKOSHI, Yuichiro KAMINO, Atsuhiro IYOMASA, Toru HASHIGAMI
  • Patent number: 8674216
    Abstract: An early streamer emission terminal is disclosed. According to some embodiments, the early streamer emission terminal can create an upward propagating streamer earlier than conventional lightning protection systems and/or devices. In particular, the early streamer emission terminal can collect ground charges during an initial phase of thunderstorm development. When a thunderstorm begins to generate downward step leaders, the ambient electric field around a grounded lightning protection system can induce a current into the grounded lightning protection system. The induced current can include a flow of negative charge toward the ground, while a positive charge can be released to form an upward streamer. The construction of the early streamer emission terminal can trigger the flow of positive upward charge microseconds earlier than traditional lightning rods or other similar devices.
    Type: Grant
    Filed: July 6, 2012
    Date of Patent: March 18, 2014
    Assignee: Alltec LLC
    Inventors: Christopher A. Bean, Woei Chiang Lee
  • Publication number: 20130213685
    Abstract: A composite structure comprising a matrix and a reinforcement. The matrix comprises a substantially nonconductive material. The reinforcement comprises a conductive material. The reinforcement is located within the matrix to form a composite layer. A portion of the reinforcement is exposed at a surface of the composite layer such that electrical conductivity of the composite layer is increased in a direction substantially perpendicular to the composite layer.
    Type: Application
    Filed: February 20, 2012
    Publication date: August 22, 2013
    Applicant: THE BOEING COMPANY
    Inventor: Kevin O'Brien Gaw
  • Patent number: 8481851
    Abstract: A variable-length lightning strike down-conductor is provided that allows for optimized ground path length, where excess down-conductor (grounding) cable is tightly coiled (e.g., as a mono-spiral coil) on a cable reel. Specifically, a primary down-conductor cable from an adjustable-length air terminal is clamped between the air terminal and the cable reel at any intermediate length, and the clamp is shunted to the ground plane (e.g., earth ground) through a second low-impedance down-conductor cable, as opposed to the high-impedance coiled down-conductor cable, thus increasing down-conductor effectiveness by reducing the impedance seen by a lightning strike to reach the ground plane.
    Type: Grant
    Filed: February 24, 2011
    Date of Patent: July 9, 2013
    Assignee: Raytheon Company
    Inventor: John P. Higby
  • Patent number: 8461452
    Abstract: The present invention relates to an arrangement for directing a lightning current within a wind turbine. The arrangement includes a first component, a second component, a contact element and a guideway. One of the two components is arranged moveably in relation to the other. The contact element is arranged in a way that the first component is electrically connected to the second component in order to direct a lightning current within the wind turbine. The contact element is guided moveably by the guideway. According to the invention, the guideway is at least partly integrated in the first component.
    Type: Grant
    Filed: March 9, 2011
    Date of Patent: June 11, 2013
    Assignee: Siemens Aktiengesellschaft
    Inventors: Thorkil Munk-Hansen, Rune Nielsen
  • Publication number: 20130118770
    Abstract: A method for manufacturing a fiber composite plastic component with integrated lightning protection. The steps include, for a positive mold, automatically laying down a ribbon-form pre-preg material or dry ribbon-form reinforcing fiber strands onto the mold. Then, automatically laying down a ribbon-form lightning protection material onto the pre-preg material or the reinforcing fiber strands. For a negative mold, the steps include automatically laying down the lightning protection material on the negative mold, then automatically laying down the pre-preg material or the dry reinforcing fiber strands onto the positioned lightning protection material.
    Type: Application
    Filed: November 12, 2012
    Publication date: May 16, 2013
    Applicant: AIRBUS OPERATIONS GMBH
    Inventor: Airbus Operations GmbH
  • Patent number: 8436243
    Abstract: An anti-lightning system for a composite structure having an external surface liable to be subjected to an air flow, the aforementioned system including at least one electrically conducting strip and fasteners fastening the aforementioned strip to the structure, the aforementioned strip being electrically connected to an electrical earth for removing current. According the disclosed embodiments, the aforementioned strip has a shape intended to collaborate with a housing created at the aforementioned external surface so that the external surface of the strip lies flush with the aforementioned external surface of the structure, and the aforementioned fasteners include an upper part flush with the external surface of the strip.
    Type: Grant
    Filed: December 10, 2008
    Date of Patent: May 7, 2013
    Assignee: Airbus Operations (S.A.S.)
    Inventors: Olivier Gattus, Charles Lambert, Jacques Fournie, Jean-Christope Loche, Mathieu Giraudineau, Gautier Destombes, Gilles Mercadier, Patrick Lieven, Damien Binaud
  • Publication number: 20130105190
    Abstract: The invention relates to lightning strike protection means. The invention refers to a multilayer lightning strike protection material. A multilayer lightning strike protection material is configured adjoinable, at least partially, to an object to be protected and comprises a dielectric layer and an electrically conductive layer, wherein the material comprises a second dielectric layer, the conductive layer being interposed between the dielectric layers and thickness d of at least one dielectric layer is not less than 0.1 mm. The present invention provides a multilayer lightning strike protection material that, owing to the most optimum arrangement of layers of components having different properties, decreases the probability of a lightning strike to the object to be protected and ensures a high lightning resistance; decreases the possibility of electrical breakdown in the event of lightning strike hit; ensures that an object which is moving in a space can be protected.
    Type: Application
    Filed: October 23, 2012
    Publication date: May 2, 2013
    Inventor: Volodymyr Volodymyrovych Knyazev
  • Publication number: 20130098651
    Abstract: A blade for wind power generation includes a lightning receptor configured to form a part of the surface of the blade, and a lightning receiving protrusion that protrudes outward from the surface of the lightning receptor. The lightning receiving protrusion is provided to a surface boundary between the blade and the lightning receptor. The surface boundary configured to protect against the lightning is positioned within a radius of a circle, which is centered on a tip of the lightning receiving protrusion and which has a radius of twice the length of the lightning receiving protrusion. A point where electric field concentration on the surface of the lightning receptor is greatest is moved from the boundary to the tip of the lightning receiving protrusion, so as to significantly reduce a possibility of blade damage associated with lightning striking the boundary when being stroke by the lightning.
    Type: Application
    Filed: June 22, 2011
    Publication date: April 25, 2013
    Applicant: THE JAPAN STEEL WORKS, LTD.
    Inventors: Jun Suzuki, Atsutoshi Muto
  • Publication number: 20130092410
    Abstract: A composite gasket for sealing, lightning strike protection and EMI shielding is provided. The gasket has a resilient conductive mesh sheet embedded with an elastomer gel layer. The conductive mesh is corrugated to provide a series of repeating waveforms, providing the gasket with a lower deflection force, better corrosion resistance, protection against lightning strikes and a higher EMI shielding capability. A second elastomer can be used around the edge portions of the gasket for improved abrasion resistance and increased tensile strength. A fiberglass sheet can be incorporated in the mesh for added reinforcement and support. The gaskets of the invention can be used on external aircraft components, such as external aircraft antenna mounts.
    Type: Application
    Filed: December 7, 2012
    Publication date: April 18, 2013
    Inventors: Michael H. Bunyan, George R. Watchko, William G. Lionetta
  • Publication number: 20130049734
    Abstract: A wind turbine hub (8) and nacelle (4) assembly including lightning conducting means (26, 30, 32, 40) for conducting lightning between the hub (8) and the nacelle (4), the hub (8) being mounted for rotation relative to the nacelle (4) and being adapted to support turbine blades, the hub (8) including a hub conductor (26) for connection to a turbine blade supported by the hub (8), the lightning conducting means including a conductive track (40) and a terminal (30, 32) which confront and are displaceable relative to each other, one of the conductive track (40) and the terminal (30, 32) being mounted on the hub (8) and being electrically connected to the hub conductor (26) and the other of the conductive track (40) and the terminal (30, 32) being mounted on the nacelle (4), the terminal (30, 32) including a terminal main body (30) which is spaced from the conductive track (40) and a sacrificial conductive terminal extension (32) extending from the terminal main body (30) towards the track (40).
    Type: Application
    Filed: April 13, 2010
    Publication date: February 28, 2013
    Applicant: TYCO ELECTRONICS UK LTD
    Inventor: Jonathan Catchpole
  • Publication number: 20130048331
    Abstract: A protective system is provided including a material comprising a first and second surface opposite one another and a thickness, and where the first surface has a low-electrical resistance and the second surface has a high-electrical resistance that is higher than the electrical resistance of the low-electrical resistance surface, and the material conducts charge from the first surface to the second surface through the thickness. This can be provided in a bilayer structure where a first protective layer having a low-resistivity is disposed upon a second protective layer having a high-resistivity. This protective system is particularly useful for dissipating electrical charge, for example as a lightning strike protection system for composite aircraft.
    Type: Application
    Filed: August 23, 2012
    Publication date: February 28, 2013
    Inventors: Timothy D. Fornes, Seth B. Carruthers, Christopher J. Cox
  • Patent number: 8383933
    Abstract: The invention relates to an earthing system for a wind turbine connected to a utility grid. The wind turbine comprises at least one electric system such as low or high voltage power systems and cables (16), at least one control system such as a SCADA system and control cables (18), and/or at least one safety system such as a lightning protection system, wherein a connection to an electrically earth potential is established from one defined place (12) within the wind turbine for said systems.
    Type: Grant
    Filed: October 9, 2006
    Date of Patent: February 26, 2013
    Assignee: Vestas Wind Systems A/S
    Inventors: Niels Birch Mogensen, Kim Bertelsen
  • Patent number: 8373065
    Abstract: An omnidirectional, external, lightning protection system which serves to minimize damage from lightning current and lightning electromagnetic impulse (LEMP). Embodiments of the present invention disclose a variety of individual structural components which may be rapidly assembled to form an air termination system, down conductor system, and earth termination system, according to established standards of lightning protection. The apparatus may be erected to protect a structure, area, or equipment and dismantled to its components parts when no longer required. The assembled structure may serve as a temporary or permanent protective structure.
    Type: Grant
    Filed: January 4, 2010
    Date of Patent: February 12, 2013
    Inventor: Hidetaka Azuma
  • Publication number: 20120205133
    Abstract: A lightning protection system for a tower of a wind turbine is provided. The tower includes a reinforced concrete tower wall in which a plurality of electrically conductive structural reinforcing elements are embedded during construction. The lightning protection system includes a plurality of the structural reinforcing elements connected in an electrically conductive manner with each other and with a ground terminal. Further, a method of incorporating such a lightning protection system in a reinforced concrete tower, and a wind turbine with such a lightning protection system is provided.
    Type: Application
    Filed: January 15, 2010
    Publication date: August 16, 2012
    Inventors: Martin Johan Smith Jensen, Bastian Lewke, Kaj Olsen
  • Patent number: 8232472
    Abstract: An early streamer emission terminal is disclosed. According to embodiments, the early streamer emission terminal creates an upward propagating streamer earlier than conventional lightning protection systems and/or devices. In particular, the early streamer emission terminal collects ground charges during an initial phase of thunderstorm development. When a thunderstorm begins to generate downward step leaders, the ambient electric field around a grounded lightning protection system induces current into the grounded lightning protection system. The induced current is a flow of negative charge toward the ground, while a positive charge is released to form an upward streamer. The construction of the early streamer emission terminal triggers the flow of positive upward charge microseconds earlier than traditional lightning rods or other similar devices.
    Type: Grant
    Filed: June 25, 2010
    Date of Patent: July 31, 2012
    Assignee: Alltec Corporation
    Inventors: Christopher A. Bean, Woei Chiang Lee
  • Publication number: 20120168192
    Abstract: A method for vertically grounding and leading down form a center of a composite pole tower includes the following steps: extending a ground down-leading wire from a center of a ground wire cross arm which is made of metal and is positioned on top of the pole tower, wherein the ground down-leading wire is vertically leaded down to the earth form the center of the composite pole tower, wherein when an lower portion of the tower body is a metal pipe, the ground down-leading wire is extended from the center of the composite material and is directly connected to the metal pipe. The method utilizes the advantage of the insulating intensity of the wall of the composite pole tower and enhances the insulating intensity of the transmission line on impact of lightning. The ground down-leading wires are prevented from short-circuiting with the tower body of the composite pole tower, so that advantage of the insulating property of the composite material of the pole towers is realized.
    Type: Application
    Filed: May 5, 2010
    Publication date: July 5, 2012
    Applicant: STATE GRID ELECTRIC POWER RESEARCH INSTITUTE
    Inventors: Zhusen Sun, Qiang Zhang, Minghua Li, Zhijun Li, Ting Liu, Feng Huo, Min Dai, Kai Liu, Xiong Wu, Dingxie Gu, Peihong Zhou, Ying Lou, Zhenqiang Li, Huiwen He
  • Publication number: 20120106022
    Abstract: A part (1) includes a structural portion made of an electrically insulating or low-conductive composite material (2) and includes, on a surface (11) of the structural portion likely to be subjected to lightning impacts (10), a metallization layer (30) covered with an electrically insulating protection paint (4). The metallization layer includes a layer of a first electrically conductive metal material (31), referred to as HVT material, and includes at least one second electrically conductive metal material (32), referred to as LVT material, having a vaporization temperature ?l substantially lower than the vaporization temperature ?h of the first electrically conductive HVT metal material. A lightning impact results in the vaporization of the LVT material and the removal of the paint on a surface larger than that in which the HVT material is vaporized, and therefore exposes or lifts a portion of the metallization around the lightning impact point, thereby promoting the anchoring of the lightning arc base.
    Type: Application
    Filed: January 7, 2010
    Publication date: May 3, 2012
    Applicant: EUROPEAN AERONAUTIC DEFENCE AND SPACE COMPANY EADS FRANCE
    Inventors: Daniel Aliaga, Frederick Cavaliere
  • Publication number: 20120020791
    Abstract: A receptor assembly for lightning protection of an object, such as a wind turbine blade, includes a receptor disk configured to be placed on a surface of the object, a receptor block insulator with an integral receptor block, a cover that engages the receptor block insulator, and a cap that engages the cover. The receptor disk and the receptor block may be made of electrically conductive materials, and the cover, and the cap, and the receptor block insulator may define a chamber among them that is lined with an electrically-conductive coating sandwiched between relatively high dielectric media to electrically isolate and shield internal parts of the receptor assembly from receiving a lightning strike directly.
    Type: Application
    Filed: July 6, 2011
    Publication date: January 26, 2012
    Inventors: Matthew Flemming, Matthew Caie, Ethan Kay, Nicholas J. Ambrogio