Abstract: A battery pack, charger, and terminal blocks for the pack, charger and a cordless power tool are provided. The pack includes battery cells disposed between end caps within a bottom housing of the pack, and a potting boat for housing pack electronics electrically connected to the cells between the end caps and disposed within a pack top housing. A pack terminal block is connected to the potting boat within the top housing. The charger and the power tool each include a terminal block for providing electrical connections between the charger/tool and the battery pack. The terminal block is configured to float side-to-side to provide displaceable movement of the terminal block within the charger housing or tool housing for aligning the battery pack terminal block therein.

Abstract: An improved layered structure with an outer lightning protection surface is provided. The layered structure may include an expanded metal foil processed to reduce the number, severity, or the number and severity of stress concentration sites, thereby reducing micro-crack initiation sites. Chemical etching, mechanical micro-deburring processes, or both may be used to address stress concentration sites on the expanded metal foil.

Abstract: A housing, comprising: a substrate; and a vacuum depositing coating formed on the substrate by vacuum depositing method, the vacuum depositing coating including a first metal coating, a second metal coating formed on the first metal coating, and a third metal coating formed on the second metal coating; wherein the first metal coating is an aluminum coating having a light transmittance of about 25-35%, the second metal coating is a silicon dioxide coating having a thickness of about 150-450 nm, and the third metal coating is a titanium coating having a light transmittance of about 45-55%. A method for making the housing is also described.

Abstract: A method of making a housing, comprising the steps of: providing a transparent plastic substrate, the substrate having an outer surface and an inner surface; coating at least portions of the outer surface with a photosensitizer; activating the substrate by using an energy ray to irradiate areas of the outer surface covered with the photosensitizer to form a conductive medium layer thereon; electroplating the activated substrate, an electroplated coating formed on the irradiated area in a predetermined pattern; forming an electrophoretic coating on the surface of the electroplated coating by an electrophoresis process; and forming a paint coating on the inner surface of the substrate. A housing made by the present method is provided.

Abstract: A lid for a micro-electro-mechanical device and a method for fabricating the same are provided. The lid includes a board with opposite first and second surfaces and a first conductor layer. The first surface has a first metal layer thereon. The first metal layer and the board have a recess formed therein. The recess has a bottom surface and a side surface adjacent thereto. The first conductor layer is formed on the first metal layer and the bottom and side surfaces of the recess. The shielding effect of the side surface of the board is enhanced because of the recess integral to the board, the homogeneous bottom and side surfaces of the recess, and the first conductor layer covering the first metal layer, the bottom and side surfaces of the recess. Hence, the shielding effect upon the micro-electro-mechanical device is enhanced.

Abstract: A building entrance terminal box using modular panels. The connection chamber of the box receives modular panels which snap into place without the need for screws. Each module includes a prewired surge protection field and output wire termination device. The surge protection field is also prewired to a connector for mating with the input wire termination device in the splice chamber. When the module is snapped into place, a connection is made with a grounding bar automatically. Various size modules may be used within a box.

Abstract: A mounting bracket is provided for supporting an electrical box to a support structure. The mounting bracket includes a mounting base for coupling to the electrical box, and a body member extending perpendicular to the mounting base and extending against the back wall of the electrical box. The body member includes a support member and extension member that can be folded outwardly from the back wall of the electrical box to contact an opposing wall and support the electrical box. In another embodiment, the mounting bracket includes a front plate with a central opening for receiving an electrical box and a pair of extension members that extend in a rearward direction with respect to the electrical box. The support members can include an extension member that can be folded outwardly to contact an opposing wall surface to support the electrical box.

Abstract: A covering for a plug and socket connection mounted in a housing is provided with a cover that covers the plug and socket connection in closed position and which is pivotable from the closed position into an open position in which it releases the plug and socket connection. The cover is mounted pivotable at a guide component. The guide component is mounted displaceable in a receptacle of the housing. In its open position, the cover is aligned with the guide component and can be inserted together with it into the receptacle.

Abstract: In communication cable of high capacity according to present invention, conductor of diameter d is coated by insulation material to form wire of diameter D, plural number of said wire are twisted by pitch p to form pairs, plural number of said pairs are twisted by collective pitch P, and said communication cable of high capacity comprise sheath wrapping said pairs, and the diameter d of said conductor and diameter D of said wire and pitch p and collective pitch P and impedance of said wires are defined by function of compensation coefficient A(81<A<83) by dielectric constant of insulation member and magnetic permeability of conductor, compensation coefficient B(0.005<B<0.007) by pitch (p) and collective pitch (P). And, by impedance matching between impedance of wire and impedance of equipment for data transmission, return loss of cable can be minimized, so high speed data transmission can be made.

Abstract: Cables and methods of manufacturing cables for high speed data communications, the cable including: a first inner conductor enclosed by a first dielectric layer and a second inner conductor enclosed by a second dielectric layer, the inner conductors and the dielectric layers parallel with and along a longitudinal axis; and folded conductive shield material wrapped in a rotational direction along and about the longitudinal axis around the inner conductors and the dielectric layers, including overlapped wraps along and about the longitudinal axis, the conductive shield material comprising a first conductive layer and second conductive layer separated by an inner-shield dielectric layer.

Abstract: Cable comprising at least one conductor and at least a fire resistant coating layer including a composition comprising: (a) at least an organic polymer having a combustion temperature range comprised between a minimum value T1 and a maximum value T2; (b) at least a glass frit; (c) at least an inert compound; wherein:—said inert compound (c) has a softening point or a melting temperature of not less than 1000° C.;—said glass frit (b) reaches a viscosity of between 107 poise and 108 poise in a selected temperature range including the combustion temperature range of said organic polymer (a), said selected temperature range being such that said glass frit (b) flows over said inert compound (c) and the burned organic polymer (a) so as to form a solid char fire resistant coating layer.

Abstract: An electrode is provided that is adapted to both pierce a barrier and providing an over-air discharge of electrical energy. In this regard, an over air discharge of electrical energy may be provided to an opposing side of a barrier. In one arrangement, the electrode includes a tapered point, which may be a hardened material, to facilitate piercing a barrier. In a further arrangement, the electrode incorporates an insulative shaft. In this arrangement, the insulative shaft electrically isolates a conductor of the electrode from a conductive barrier. Accordingly, the electrode may be utilized to pierce metallic enclosures and provide an electrical discharge for the purpose of altering the operation of electronic device within such enclosures.

Abstract: Methods are provided for producing an attrition-resistant, flexible, insulated wire well-suited for use in a high temperature operating environment. In one embodiment, the method includes the steps of providing a conductor, preparing a dielectric coating, applying the dielectric coating over the conductor, and curing the coated conductor. The dielectric coating includes an organic binder, a dielectric material, and an inorganic lubricant.

Abstract: The present invention relates to a cable comprising one or more insulated conductors which are embedded in a bedding composition having improved flame retardancy. The bedding composition comprises a resin (A) and inorganic filler (B), which is a hydroxide or hydrated compound.

Abstract: An electric wire that has a conductor held by spacers in a covering of PTFE, continuous cells being formed between the covering, the spacers, and the conductor. In an axial section, the majority of the PTFE fibers of the spacers point in a substantially radial direction, thereby imparting excellent robustness to the spacers. A method of manufacturing such an electric wire, in which method an extrudate of PTFE is caused to pass through an extrusion passage around the conductor in such a manner as to form the covering; so that: upstream from an expansion section, the covering is formed by a guide; and downstream from this section, the cells are formed by section members, the spacers being formed by filling expansion channels situated between walls of the section members.

Abstract: An insulation-coated wire has a conductor, and a semiconductive layer provided at an outer periphery of the conductor, the semiconductive layer comprising a resin coating comprising metal fine particles dispersed in a base resin, in which an average particle diameter of the metal fine particles is not greater than 1 ?m.

Abstract: The present invention relates to a crosslinkable polymer composition comprising an unsaturated polyolefin having a total amount of carbon-carbon double bonds/1000 carbon atoms of at least 0.38, and at least one crosslinking agent being a carbon-carbon initiator that is free of peroxide groups and capable of thermally decomposing into carbon-based free radicals by breaking at least one carbon-carbon single bond, such as 3,4-dimethyl-3,4-diphenylhexane.

Abstract: Disclosed is a lead wire having a lead electrode made of a metal and a cap. The cap covers the front end portion of the lead electrode and is made of a metal harder than that of the lead electrode. Also disclosed is an electronic component having a functional device and the lead wire. The lead electrode is led out from the functional device.

Abstract: A connecting wire having an electrically conductive core—preferably provided by a wire or ribbon—with a coating provided on the surface of the core, the coating being composed of a nitrogen-containing tantalum alloy or tungsten alloy, and also optionally containing silicon as an additional alloy component. The invention further relates to a manufacturing method for such a connecting wire.

Abstract: The invention discloses a membrane circuit board including a substrate, a plurality of first signal pins and a second signal pin. The first signal pins and the second signal pin are disposed on the substrate. The substrate has a first edge. Each of the first signal pins has a first terminal, and the first terminal has a first width. The second signal pin has a second terminal, which is disposed between the first edge and the first terminal. The second terminal has a second width. The second width is larger than the first width. Accordingly, the membrane circuit board may have high error tolerance and better quality control efficiency.

Abstract: A wiring substrate includes a substrate body including first and second surfaces on opposite sides and a substrate side surface; a penetration electrode penetrating through the substrate body; a first wiring pattern on the first surface and including a first pad; a second wiring pattern on the second surface and including a second pad; a first insulating resin layer covering the first wiring pattern except for an area corresponding to the first pad and having a first resin side surface; a second insulating resin layer covering the second wiring pattern except for an area corresponding to the second pad and having a second resin side surface that is flush with the first resin side surface; a notch part encompassing at least apart of the substrate body and having a resin material provided therein. The substrate side surface is located more inward than the first and second resin side surfaces.

Abstract: An electronic system includes a printed circuit board, a base, and a wire clip. The printed circuit board includes an electronic component and a plurality of hooks around the electronic component. The base thermally contacts the electronic component of the printed circuit board. Two clasps are formed at opposite ends of the base. The wire clip includes two pressing portions, two first connecting portions extending inwardly from first ends of the two pressing portions respectively, and two second connecting portions extending inwardly from second ends of the two pressing portions respectively. The first and second ends of the pressing portion are opposite. The pressing portions of the wire clip are clasped by the clasps of the base. The first connecting portions engage with two hooks of the printed circuit board, and the second connecting portions engage with another two hooks of the printed circuit board.

Abstract: Disclosed is a via structure in a multi-layer substrate, comprising a first metal layer, a dielectric layer and a second metal layer. The first metal layer has an upper surface. The dielectric layer covers the first metal layer in which a via is opened to expose the upper surface. The second metal layer is formed in the via and contacts an upper surface and an inclined wall of the via. A contacting surface of the second metal layer has a top line lower than the upper edge of the inclined wall. Alternatively, the second metal layer can be formed on the dielectric layer as being a metal line simultaneously as formed in the via as being a pad. The metal line and the pad are connected electronically. The aforesaid metal second layer can be formed in the via and on the dielectric layer by a metal lift-off process.

Abstract: Flame retardant compositions that are halogen-free or substantially halogen-free are disclosed. In certain examples, the compositions comprise a polyphenylene ether, a halogen-free or substantially halogen-free polyepoxide, and one or more phosphorated compounds. Prepregs, laminates, molded articles and printed circuit boards using the compositions are also disclosed.

Abstract: The circuit-connecting material for connection between circuit members each having a board and a circuit electrode formed on the primary surface of the board, comprising an adhesive composition that cures in response to light or heat and an organic compound containing a urethane group and an ester group.

Abstract: A method for preparing an electroconductive patterned copper layer, comprising mixing copper-based particles with a reducing agent, and then adding a solvent thereto to prepare a reducing agent-containing copper-based particle dispersion solution; printing on or filling in the reducing agent-containing copper-based particle dispersion solution a substrate in a predetermined shape to form a reducing agent-containing copper-based particle patterned layer; and firing the reducing agent-containing copper-based particle patterned layer in the air, which allows forming a patterned copper layer with excellent electric conductivity even in the air, thereby being industrially very useful.

Abstract: A curable resin composition comprising: 100 parts by weight of an alicyclic olefin polymer (A); from 1 to 100 parts by weight of a curing agent (B); from 10 to 50 parts by weight of a salt (C) of a basic nitrogen-containing compound with a phosphoric acid; and from 0.1 to 40 parts by weight of a condensed phosphate ester (D); of which phosphorus element content is not less than 1.5% by weight. The composition can provide a molded body or composite body which excels in a moisture resistance, a flame retardancy, a smoothness of the surface, and an electric insulation property and a cracking resistance, and hardly generates a harmful substance in burning. A multilayered circuit board is obtained by molding the composition into a sheet; laminating the sheet on an inner layer board; curing the laminated sheet to form an electric insulating layer; and forming an electric conducting layer on the electric insulating layer.

Abstract: Disclosed is a halogen-free resin composition for printed wiring board production, which is remarkably reduced in quality deterioration due to moisture absorption of a semi-cured resin film (layer). Also disclosed is a copper film with resin or the like. The resin composition is characterized by containing a component A (one or more resins selected from the group consisting of bisphenol-A epoxy resins, bisphenol-F epoxy resins and bisphenol-AD epoxy resins, which have an epoxy equivalent of not more than 200, while being in a liquid state at 25 DEG C.), a component B (a linear polymer having a crosslinkable functional group), a component C (a crosslinking agent), a component D (an imidazole-based epoxy resin curing agent) and a component E (a phosphorus-containing epoxy resin). The resin composition is also characterized by containing 0.5-3.0% by weight of phosphorus atoms per 100% by weight of the resin composition. In the copper foil with resin, a resin layer is formed by using the resin composition.

Abstract: Printed circuit board capacitors include a first electrode comprising a via extending at least partially through a multi-layer printed circuit board and a plurality of conductive pads in electrical contact with the via and extending radially outward from the via, and a second electrode electrically isolated from the first electrode and comprising a plurality of ground-plane layers of the printed circuit board. The plurality of ground-plane layers include electrically conductive material overlapping the plurality of conductive pads.

Abstract: A system and method of forming a patterned conformal structure for an electrical system is disclosed. The conformal structure includes a dielectric coating shaped to conform to a surface of an electrical system, with the dielectric coating having a plurality of openings therein positioned over contact pads on the surface of the electrical system. The conformal structure also includes a patterned conductive coating layered on the dielectric coating and on the contact pads such that an electrical connection is formed between the patterned conductive coating and the contact pads. The patterned conductive coating comprises at least one of an interconnect system, a shielding structure, and a thermal path.

Abstract: A wiring board with a built-in electronic component in which an electronic component is flip-chip mounted to be built in, including a conductive-pattern layer, a connection terminal formed in the conductive-pattern layer and electrically connected to the electronic component, and a solder resist layer formed on the conductive-pattern layer. The solder resist layer is formed around the connection terminal on the conductive-pattern layer, but it is not formed in at least part of the other region on the conductive-pattern layer.

Abstract: An electronic component package and a manufacturing method thereof. The electronic component package includes: an insulation layer; a single layer of circuit pattern buried in the insulation layer and having a surface exposed at one side of the insulation layer, the circuit pattern comprising a bonding pad and a solder ball pad; and an electronic component mounted on one side of the insulation layer and electrically connected with the bonding pad. In addition, the electronic component package includes a portion of the insulation layer being removed in correspondence with the position of the solder ball pad such that the solder ball pad is exposed at the other side of the insulation layer.

Abstract: In a double-stacked electromagnetic bandgap (EBG) structure, a first conductive plane and a second conductive plane are spaced apart in parallel. At least two EBG layers are embedded in parallel between the first conductive plane and the second conductive plane. The at least two EBG layers have different stopband characteristics. A plurality of vias connect the at least two EBG layers respectively to one of the first and second conductive planes. At least the vias connecting one of the EBG layers pass through via holes in cells of another EBG layer.

Abstract: A cover assembly for attaching to an electrical box includes housing and a cover hinged to the housing. The assembly is mounted to the electrical box to protect an electrical device from moisture while allowing access to the electrical device. The housing has an inner chamber, an outer chamber and an access opening into the outer chamber for the electrical cord that can be connected to the electrical device. The cover assembly is provided with a water barrier member between the inner chamber and the outer chamber to inhibit water and debris from entering the housing of the cover assembly through the access opening.

Abstract: A box for connecting an output line of a solar panel with a feed cable has a base mountable on the solar panel, formed with at least one cutout through which the feed cable passes, and having a generally planar floor and around the floor a seal seat open orthogonally in one direction of the floor. A cover is engageable oppositely of the direction with the base to from therewith a compartment. Functional elements are provided in the compartment, A seal in the seat is engaged between the base and the cover.

Abstract: A box for connecting an output conductor from a solar panel to a feed cable. The box has a cover, a base securable to a solar panel, closable by the cover, and formed with a first opening for the output conductor and at least one second opening for a feed cable, and means in the base for securing the conductor directly in electrical conduct to the cable.

Abstract: A feeding device includes a case, which includes a body receiving a wire harness with extra length portion and a guide tube projecting from the body, a distal-end protector and an intermediary protector both of which are attached to the wire harness. The intermediary protector is inserted into the guide tube so as to be able to move forward and backward freely, and the distal-end protector is projected out of the guide tube, and a bendable portion of the wire harness is exposedly formed between the distal-end protector and the intermediary protector. A hood along a bending outer surface of the bendable portion is provided at the distal-end protector. The extra length portion of the wire harness is received in the body so as to be formed into a loop shape.

Abstract: A perforation tool e.g. for perforation of a formation, a well or the like downhole by detonation of a charge. The perforation tool has at least one charge and at least one switch for detonation of the charge. The switch has a housing, at least one contact, a shaft having a first end with a fastening member enabling a slidable fastening of the shaft in a predetermined position in relation to the tool and a second end for extending into the housing, and a conductor provided on the shaft enabling an electrical current to be conducted between the contact and the for detonation of a charge when the shaft extends within the housing.

Abstract: A system for forming a subsurface wellbore includes a rack and pinion system including a chuck drive system. The chuck drive system operates a drilling string. An automatic position control system includes at least one measurement sensor coupled to the rack and pinion system. The automatic position control system controls the rack and pinion system to determine a position of the drilling string.

Abstract: A drill bit for drilling a subterranean formation includes a plurality of cutting elements and a shank extending from a bit body. A set of accelerometers disposed in the drill bit include a radial accelerometer and a tangential accelerometer. An annular chamber is formed within the shank. A data evaluation module is disposed in the annular chamber and includes a processor, a memory, and a communication port. The data evaluation module is configured for performing a bit acceleration analysis. The analysis includes sampling acceleration information from the radial accelerometer and the tangential accelerometer over an analysis period and storing the acceleration information in the memory to generate an acceleration history. The acceleration history is analyzed to determine a cutting effectiveness of the cutting elements responsive to changes in the acceleration history. The cutting effectiveness is reported through the communication port.

Abstract: The invention relates to a method and a device for controlling drilling parameters when drilling into rock with a drilling machine. During drilling, an impulse-generating device using an impact means is arranged to induce shock waves in a tool held against the rock, the said impulse-generating device being displaceable in the drilling direction relative to a supporting means, wherein a pressure level of a shock-wave-generating pressure is controlled during the drilling operation. A drilling speed of the said drilling is determined by determining a movement of the impulse-generating device with respect to the said supporting means, and the said shock-wave-generating pressure is controlled as a function of the said drilling speed that has been determined.

Abstract: A rotary steerable apparatus is provided having an actuator for pushing the bit or pointing the bit that includes a shape memory alloy. An elongated form of the alloy, such as a wire or rod, is employed in a mechanism that applies force in a direction transverse to the wellbore in response to a change in length of the alloy. Temperature of the alloy is controlled to change shape and produce the desired force on pads for operating the apparatus. The apparatus may be used with downhole power generation and control electronics to steer a bit, either in response to signals from the surface or from downhole instruments.

Abstract: A drilling apparatus includes an upper drill string, a lower drill string including a rotary drilling motor, an orientable rotatable connection between the drill strings, a reactive torque control device associated with the orientable rotatable connection, an orientation sensing device for providing a sensed actual orientation of the lower drill string, and a feedback control system configured to actuate the control device in response to the sensed actual orientation to achieve a target orientation of the lower drill string. A drilling method includes actuating the control device to prevent relative rotation of the drill strings, providing a sensed actual orientation of the lower drill string, comparing the sensed actual orientation with a target orientation of the lower drill string, actuating the control device to allow the lower drill string to rotate to provide the target orientation, and actuating the control device to prevent relative rotation of the drill strings.

Abstract: A system for optimizing a rate-of-penetration of a drill string, the system including: a plurality of sensors in operable communication with the drill string; and a controller in operable communication with the plurality of sensors, the controller connectable to a drill string motivator and capable of outputting a signal to the drill string motivator for optimizing the rate-of-penetration of the drill string, the signal configured to provide at least one of weight on bit, an amount of speed to rotate the drill string, an amount of torque to be applied to the drill string, and an amount of mudflow to the drill string.

Abstract: In one aspect of the invention, a drill string comprises a drill bit with a body intermediate a shank and a working face, and the working face comprises at least one cutting element. A jack assembly is disposed within the drill bit body and comprises a jack element disposed on a distal end of the assembly. The jack element substantially protrudes from the working face and is adapted to move with respect to the bit body. At least one position feedback sensor is disposed proximate the jack assembly and is adapted to detect a position and/or orientation of the jack element.

Abstract: A method is provided for conducting measurements of a borehole while drilling the borehole in a geological formation. First, a rotatable drilling assembly is provided that has, at a forward end, a drill bit and a borehole measurement tool connected rearward of the drill bit. The measurement tool includes at least one caliper arm extendible outward from the measurement tool. The method involves drilling the borehole by operating the rotatable drilling assembly. While drilling, the wall of the borehole is contacted with at least one extendable caliper arm of the borehole measurement tool and the extension of the caliper arm contacting the borehole wall is measured, thereby determining a distance between the measurement tool and the borehole wall. During rotation of the drilling assembly, contact is maintained between the caliper arm and the borehole wall and the measuring step is repeated at multiple positions of the drilling assembly.

Abstract: A hydraulically powered tractor includes an elongated body, two gripper assemblies, at least one pair of aft and forward propulsion cylinders and pistons, and a valve system. The valve system comprises an inlet control valve, a two-position propulsion control valve, a two-position gripper control valve, two cycle valves, and two pressure reduction valves. The inlet control valve spool includes a hydraulically controlled deactivation cam that locks the valve in a closed position, rendering the tractor non-operational. The propulsion control valve is piloted on both ends by fluid pressure in the gripper assemblies. The propulsion control valve controls the distribution of operating fluid to and from the propulsion cylinders, such that one cylinder performs a power stroke while the other cylinder performs a reset stroke. Each end of the gripper control valve is piloted by a source of high-pressure fluid selectively admitted by one of the cycle valves.

Abstract: Apparatus for carousel drilling, which includes a drill tower having a rotatable drive motor at the top, and a carousel pivotably attached with respect to the drill tower and capable of supporting four elongated drilling devices, at least certain of which are drill extenders capable of attachment to, and detachment from, a drilling tool, such as a tricone drill tool for drilling soft earth materials, and a hammer drill tool for drilling hard earth materials. A retainer plate having four cutout openings is located at the upper end portion of the carousel to receive and retain the drilling devices in a generally vertical orientation when the drill tower and the carousel are raised to a generally vertical orientation for operative drilling.

Abstract: A distance holder for connection to, and rotation with, a drill string in an earth formation drilling device arranged to supply a jet of abrasive fluid for the purpose of providing a borehole by removing earth formation material through abrasion, comprises a housing with a chamber which is essentially rotational symmetric and which is to face the earth formation material, and a jet nozzle which arranged for discharging a jet of the abrasive fluid in the chamber, the housing comprising at least one slot for allowing the abrasive fluid to leave the chamber. The slot is continued over the housing outer surface so as to counteract rolling motions of the particles which are comprised in the abrasive fluid.

Abstract: An apparatus for drilling a borehole in an earth formation is disclosed. The apparatus includes: an earth-boring rotary drill bit including a bit body having a plurality of cutters engagable with a subterranean earth formation; a fluid conduit disposed in the bit body, the fluid conduit being in fluid communication with a source of drilling fluid and configured to receive a portion of the drilling fluid; a nozzle extending between the fluid conduit and a surface of the bit body, the nozzle configured to apply a stream of the portion of the drilling fluid to a first location of the surface; and a valve assembly including an actuator and a valve, the actuator configured to move the valve and divert a flow path of the portion of the drilling fluid, thereby diverting at least part of the stream to a second location on the surface.