Abstract: A method and an apparatus are provided for electromagnetic stirring during a continuous casting process, especially for casting a billet and bloom of medium and high carbon steels. The method and apparatus provide a higher surface quality of the ingot, reduce the entrapping of nonmetallic inclusions into the ingot, and suppress issues regarding central segregation and central porosity. The method provides an improvement in the stirring process from the meniscus to the crater end—and relates to in-mold stirring and stirring in a zone of secondary cooling and up to the crater end. The in-mold stirring is geared towards the suppression of meniscus disturbance, for submerged casting, in particular, the reducing of helical and axial velocity components of the molten steel, the lowering of the initial solidification point to avoid the touching of a shell edge with the slag ring, and a decrease of oscillation marks.

Abstract: A wall covering system for radiant heating includes a first wall covering portion and a second wall covering portion. The first portion is releasably connectable to the second portion in a direction substantially perpendicular to an outer surface of the first portion. The first portion includes a bottom side and top channel portion downwardly depending from the bottom side. The second portion includes a top side and a bottom channel portion extending upwardly from the top side. The top channel portion and the bottom channel portion bound a channel for receiving a heating conduit. The channel extends longitudinally relative to the first portion and the second portion.

Abstract: A zone-control unit for use in a heating, ventilation, and air conditioning (HVAC) system, the zone-control unit includes a heat exchanger, an inlet piping assembly coupled with the heat exchanger for supplying fluid to the heat exchanger, an outlet piping assembly coupled with the heat exchanger for receiving fluid from the heat exchanger, a bracket that maintains the inlet piping assembly and the outlet piping assembly in positional relationship, and an ancillary component coupled with the heat exchanger.

Abstract: A method of fabricating a condenser tube having a pre-determined tube length and multiple channels including the steps of forming an aperture in a flat strip of metal; moving the flat strip through a plurality of forming operations to fold into an enclosed tube containing channels, which channels include the aperture in their sides and bottoms; and severing the enclosed tube across the aperture to separate the enclosed tube into one condenser tube. The aperture eliminates the need for the channel sides to be severed, hence only the portion of the condenser tube enclosing the channels requires severing. Each pair of apertures is spaced from the next pair of apertures by the pre-determined tube length so that each sever produces one condensing tube of the pre-determined tube length with the apertures being divided into open notches. The invention also includes a heat exchanger utilizing the condenser tube with channel sides containing portions of the apertures.

Abstract: A mechanical set of plates is able to simultaneously and quickly removably secure and remove one or more printed circuit boards (PCBs) in an enclosure in one single motion, and act as a heat sink to conduct heat away from the PCBs. The PCBs are removably secured through a clamping mechanism that may be a screw type or cam lever action by clamping down on the exposed card edges, thus allowing thermal transfer to begin on all cards. The apparatus may be used with any enclosure requiring thermal transfer from PCBs to the enclosure, including cages and enclosures that may or may not use forced airflow (fans or blowers) for heat dissipation.

Abstract: A direct embedded heat pipe apparatus for holding liquids. The flexible hollow-core pipe has an outer layer. The outer bond layer is immediately within the outer layer. A pair of continuous spaced apart heating elements is embedded within the outer bond layer. The elements are disposed in a serpentine path. The heating elements traverse about ¾ of the circumference of the pipe. The aluminum layer is disposed immediately within the outer bond layer. The inner bond layer is disposed immediately within the aluminum layer. The inner layer is disposed immediately within the inner bond layer.

Abstract: A loop heat pipe with flat evaporator includes an evaporation section, a condensation section, and a transportation section connected between the evaporation section and the condensation section. The evaporation section includes a heat source, an enclosed containment structure, and a capillary structure.

Abstract: A liquid cooling type heat-dissipating device for exchanging heat with a heat source is provided, which includes a heat-dissipating fan, a pump, a liquid pipe, a motor, and a heat-dissipating block. The motor drives the heat-dissipating fan and the pump. Two ends of the liquid pipe are connected to the pump so as to form a fluid loop, wherein the liquid pipe is in contact with the heat-dissipating block, and the heat-dissipating block is disposed on the heat source. The liquid pipe is continuously curved on a segment away from the heat-dissipating block to form a curved portion located on a wind output path of the heat-dissipating fan, therefore, the heat-dissipating fan cools the curved portion by blowing wind, so as to increase the speed of temperature dropping thereby improving the heat dissipation performance of the liquid pipe.

Abstract: A radiator unit for radiating heat from a heat source into space. The radiating unit includes an inflatable radiating panel comprising a plurality of inflatable tubes inflated with and adapted to contain and permit a circulation through the plurality of inflatable tubes of a low mass gas, a sufficient quantity of low mass gas to inflate said plurality of inflatable tubes and a blower unit for forcing the circulation of said low mass gas through the heat source and said plurality of inflatable tubes.

Abstract: The invention concerns a metal fin for heat exchanger with tubes, comprising means for increasing heat transfers consisting of diverting conformations (10,11) each arranged upstream and downstream of an aperture (3) when considering the direction (F) of air flow, to force the air to pass either side of said aperture, the upstream (10) and downstream (11) diverting conformations of two superimposed apertures (3) belonging to one same column extending along a determined length so that they substantially rejoin at the plane of extension (P) of offset apertures.

Abstract: In a heat exchanger used for an EGR cooler or the like, in order to provide a heat exchanger that has a small number of parts, is assembled easily, can flow cooling water evenly at each part, and does not cause partial boiling, a strip-shaped metal plate is turned up and bent in a fanfold manner, flat first flow channels 3 and second flow channels 4 are formed alternately, both the ends of the first flow channels 3 are closed with slit blocks 6, projecting stripes 3a are bent and formed at the positions of ports 11 for the cooling water 10 in proximity to the slit blocks 6, and gaps 3c are formed between respective paired projecting stripes 3a.

Abstract: The invention relates to a cross-counterflow heat exchanger, such as a cross-counterflow radiator for a motor vehicle, having an improved inlet/outlet tank wherein the inlet and outlet chambers are laterally off-set allowing the inlet and outlet ports to be oriented in the same general direction toward the fluid source; more particularly, the inlet and outlet chambers are tapered thereby providing improved flow distribution and pressure drop for fluid flow; still more particularly, the return tank inlet and outlet chambers are contra-tapered allowing the inlet and outlet ports to be substantially aligned resulting in a laterally compact heat exchanger.

Abstract: A condenser for a refrigerator includes an inline arrangement in which a refrigerant tube is arranged such that refrigerant tube parts are arranged in lines in the forward and backward direction, and a staggered arrangement in which the refrigerant tube parts are arranged at the rear side of the inline arrangement in the forward and backward direction to misaligned with each other, such that the difference of air flow between a front side and a rear side thereof is minimized when heat exchange with ambient air in the condenser is performed by blowing operation of a cooling fan installed to a side of the condenser.

Abstract: A bottom hole assembly for an intermittent lift plunger system includes a retrievable downhole anchor which may be set and reset in one downhole trip, a retrievable packing device, and a plunger stop.

Abstract: The invention relates to a downhole device for incorporation into a downhole string and movement in a wellbore. The device comprises a body member, at least one roller arranged on the device to engage the inner surface of the wellbore and means to orient the device in the wellbore. The means to orient the device are provided on the or each roller. Preferably the means to orient the device comprise a projecting portion provided on the or each roller which projects radially outwardly from the body member. The projecting portion can be an eccentrically-shaped portion of the or each roller.

Abstract: Centralizers including at least a portion formed of a first material and an outer shell formed of a second material. The outer shell being installed to resist destructive damage and longitudinal creep of the portion formed of the first material.

Abstract: The invention includes methods of collecting crude oil and apparatus which collect crude oil. In one implementation, a crude oil collection header apparatus comprises a collection reservoir. A plurality of fluid conduits is connected to feed crude oil to the collection reservoir. The fluid conduits respectively comprise a collection reservoir feed valve, a bypass valve, and a crude oil feed inlet received between the collection reservoir feed and bypass valves. A flow meter conduit is connected with multiple of the plurality of fluid conduits downstream of the respective bypass valves. A flow meter is operably connected with the flow meter conduit. A crude oil outlet is associated with the collection reservoir. Other aspects and implementations are disclosed.

Abstract: New methods and systems for subterranean fracturing for hydrocarbon wells. A plan of the fracture propagation and in-fracture proppant distribution is used with a real-time model of the status of the fracture dimensions and in-fracture proppant concentration to automatically control flow rates and properties of a fracturing fluid flow stream being used to induce and prop the fracture. Real-time measurements of the status of the fracture are made using surface and/or down-hole sensors. Real-time control over the flow rate and properties of a fracturing fluid flow stream are made by manipulating the fracturing fluid supply equipment. Real-time modifications of the fracturing model are made by comparing fracture sensor measurements of actual fracture dimensions to the predicted dimensions, and then adjusting the model for inaccuracies. Real-time updates to the fracturing plan are made by comparing actual fracture and propping results to desired results, and then adjusting to achieve optimal results.

Abstract: A technique enables testing of a wellbore tubular under simulated well conditions. The wellbore tubular is mounted in a fixture for testing. Controllable systems are used to subject the wellbore tubular to a variety of predetermined conditions simulating potential downhole environments. The controllable systems include manipulators able to place the wellbore tubular under predetermined load, displacement, temperature, and pressure conditions.

Abstract: A method for servicing a well bore comprises connecting a mixing system to the well bore, controlling the mixing system to produce a material mixture with approximately a desired density, and controlling the mixing system to provide the material mixture to the well bore at approximately a desired volumetric flow rate to service the well bore, wherein the controlling to produce approximately a desired density is independent from the controlling to provide approximately a desired volumetric flow rate.

Abstract: Disclosed is a method of utilizing a pressure signature in conjunction with a plunger's fall time as an indicator of plunger location. The disclosed method can also indicate well and/or plunger conditions. A controller that can see and interpret slope change and/or pressure signature and automatically make changes to plunger fall time is also disclosed.

Abstract: A rotational alignment system determines the angular relationship between two or more elements of a drill string using one or more sensors that detect one or more reference objects positioned on the drill string. A control unit determines the rotational or angular offset between two or more elements on the drill string using measurements made by the sensor(s). In one application, rotational offset values are used by a surface logging computer to correlate sensor data provided by a logging tool.

Abstract: Multiple formations are isolated in the wellbore and fractured and gravel packed together. The bottom hole assembly can have a series of screens that are separated with packers in between and above and below the screen stack. The assembly is positioned where needed in the borehole and the topmost and lowermost packers (if used) are set. The bottom of the interval can alternatively be the hole bottom. With multiple intervals isolated a fracturing operation can take place for the entire isolated interval that can encompass multiple producing zones. The interval can also be gravel packed in a single operation. After the gravel pack of the interval, packers that are on the bottom hole assembly between screens that are aligned with perforations for different zones can be set into the gravel pack and get an effective seal against the casing to isolate the various producing zones from each other.

Abstract: A rigless sand-control tool string is for use in a wellbore having plural zones. The tool string includes plural flow port assemblies, and plural screen assemblies connected to corresponding circulation port assemblies. Each set of one of the flow port assemblies and one of the screen assemblies is configured to perform sand control with respect to a corresponding zone of the wellbore. The flow port assemblies are selectively activatable to allow selective performance of sand control with respect to the corresponding zones.

Abstract: A method for selectively closing a downhole one way check valve, the method having the following steps: attaching the valve to a casing; locking the valve in an open configuration; running the casing and the valve into the wellbore; reverse circulating a composition down an annulus defined between the casing and the wellbore; injecting a plurality of balls into the annulus; unlocking the valve with the plurality of balls; and closing the valve.

Abstract: An apparatus and method for forming plugs in a wellbore, according to which a first volume of slurry is introduced into a work string in a wellbore so that it flows through the work string and discharges before hardening to form a plug. A second volume of slurry is also introduced into the work string so that it flows through the work string and discharges before hardening to form an additional plug.

Abstract: A process for in situ production of shale oil comprises fracturing the target zone 10 of an shale oil formation using a two step approach. First, an initial set of fractures 18 is developed in the formation by using high pressure gas pulses. Second, a secondary set of fractures 28 extending and further fracturing the initial set of fractures 18 is created using a modified ANFO mix 22 wherein rubber particles acting as solid fuel are blended in with ammonium nitrate and fuel oil. The solid fuel enhances the fracturing characteristics of ANFO while minimizing its crushing and compacting tendencies. Hot high pour point oil is then injected into the formation and forced into the receptor well 16 where it is pumped to the surface. By circulating oil in the formation at carefully controlled temperatures, kerogen can be decomposed at the optimum rate to maximize the amount of oil recovered and yield high quality shale oil.

Abstract: Methods and devices useful in subterranean treatment operations are provided. One example of a device is a dart having a deformable body, a nosepiece connected to a lower terminus of the deformable body, and a channel extending through the deformable body and the nosepiece. One example of a method includes providing a dart, providing a production casing having at least one production sleeve therein, placing the dart in the production casing of a well bore, pumping a treatment fluid into the well bore, and allowing the dart to open the production sleeve within the production casing such that the treatment fluid is introduced into the subterranean formation through the production casing.

Abstract: A pump for pumping liquid from a well having a continuous flexible riser pipe that does not have a coil memory and a flexible actuating rod disposed within the flexible riser pipe. A piston valve unit is disposed at one end of the riser pipe and drivably connected to the actuating, the piston valve unit having an outer diameter that is greater than the inner diameter of the continuous riser pipe.

Abstract: A system and method for systematically and economically recovering formation liquids from the bottom of a petroleum well are disclosed. In a preferred embodiment, the system and method are passive in that they utilize the existing formation pressure of the well to remove fluid build-up across the perforations of the well bore in a manner that is completely free from surface control. The system is comprised of strategically placed carrier subs with installed pressure regulating devices. These carrier subs are regularly spaced below the production packer, along the tail pipe section of the production tubing string and facing the perforated intervals of the well bore. The pressure of the trapped formation gas above the accumulating formation liquid is insufficient to remove all of the formation liquid within the entire length of the tubing string 13.

Abstract: The method of the present invention employs a subsurface production pump to displace hydrocarbon fluid, including any and all accompanying ground water and/or earthen contaminants, from the subterranean hydrocarbon reservoir depth of an oil well to surface storage and handling facilities via the subsurface production tubing, wellhead and surface flow line. As the subsurface production pump operates, compressed gas, or a mixture of compressed gases of sufficient volume and force is fed into the lower end of the subsurface production tubing in proximity to, or at a point above the subsurface production pump to mix into the hydrocarbon production fluid column. The resultant and considerably reduced density of the subsurface hydrocarbon production fluid column provides a reduction of subsurface production pump loading with all types of subsurface production pumps, and an improvement of sucker rod fall time when sucker rod activated subsurface plunger pumps are employed.

Abstract: The application discloses a valve, which may include either a safety valve or a storm surge choke valve or the like, to isolate a zone below a valve from a string of production tubing. Preferably, the valve includes a flow interruption surface assembly, such as a flapper valve or a ball valve, displaced by an operating conduit extending from a surface location to the valve through the inside of the production tubing. The application also discloses a bypass-conduit inside the production tubing to allow communication from a surface location to the production zone when the valve is in either an open or a closed location.

Abstract: An artificial lift system provides an artificial lift design specifically for the pumping of liquids from natural gas wells, but not limited to this application. In doing so, production rates and reserves recovered can be significantly increased. The artificial lift system uses small diameter continuous tubing to run the pump in the hole and deliver small volumes of high pressure dry gas as a power fluid to the pump. This power fluid forces liquid that has been drawn into the pump from the bottom of the wellbore to surface. By removing the liquids from the wellbore the natural gas can flow unrestricted to surface. The design and equipment allow for a cost effective artificial lift alternative.

Abstract: A technique distributes localized stress acting on a tubular. The tubular is formed with an inner layer and an outer layer that is compliant relative to the inner layer. A force distribution material is disposed between the inner layer and the outer layer to spread any concentrated loads acting against the tubular. The compliant nature of the outer layer causes it to distort against the force distribution material when acted on by a concentrated external load. The outer compliant layer and the force distribution material cooperate to isolate and protect the inner layer from displacements of the surrounding subterranean material.

Abstract: The flame arrester comprises a flow passage in which are disposed a plurality of generally aligned rods such that fluids flowing in the passage must pass between the rods. Rows of rods are used to construct the flame arrester element, ideally closely spaced and these present a natural surface over which air can flow with minimal flow resistance. The rods can be of any size and the gaps between them can be selected to arrest explosions due to different gases or vapours in air. The rod diameter can be altered to withstand different levels of explosion pressure, making it possible to construct both deflagration and detonation flame arresters. If tubes are used these can carry cooling fluid making the arrester more effective at coping with continuous burning. Rods in parallel rows can be offset with respect to the adjacent row. Suitable offset angles can vary.

Abstract: A system for providing a fire suppression gel spray, including: a water tank; a water pump in fluid communication with the water tank; a gel tank; a gel pump in fluid communication with the gel tank; a spray nozzle in fluid communication with the water pump and the gel pump; a water flow control mounted on the spray nozzle; a gel flow control mounted on the spray nozzle; and a gel recirculation line for directing gel flow from the gel pump back into the gel tank, wherein the water flow control and the gel flow control are independently controllable at the spray nozzle. In addition, an optional system for spraying gel directly over the cab of a fire truck to which the present system is mounted is also included.

Abstract: The invention relates to a device for cutting slits in a surface, for instance a turf cover, comprising a frame displaceable over the surface, a movable cutter on the frame and oriented during use toward the surface for the purpose of cutting slits in the surface. The invention is distinguished in that the device comprises collecting means for collecting the material cut from the surface by means of the cutter. The invention also relates to a dispensing device, comprising a filler material container, a channel to an outflow opening oriented toward a slit, which channel is connected to the filler material container, and a dispensing mechanism in at least one of the channel and the filler material container.

Abstract: A hand-held hammer drill has a housing, a tool spindle rotatingly driving a tool, a hammer action percussion-driving the tool, a swash plate drive driving the hammer action, and a countershaft driving as needed the tool spindle and the hammer action. A first bearing and an axial bearing are provided. The hub is rotatably supported in a cantilevered arrangement by the first bearing in the housing and coaxially surrounds the countershaft. The hub has a free cantilevered end and the axial bearing is disposed on the free cantilevered end, wherein the axial bearing axially supports the countershaft and has radial play relative to the countershaft.

Abstract: A hand-held power tool includes a percussion mechanism (2) having a percussion piston (5) for impacting at least one anvil (8, 8?a, 8?b) displaceable in a guide tube (6) between two, spaced from each other axial stops (7a, 7b) provided in the guide tube (6), and an impact sleeve (10, 10?) arranged coaxially with the at least one anvil (8, 8?a, 8?b), axially displaceable within limits between two outer radial bands (9a, 9b, 9?) formed on the at least one anvil (8, 8?a, 8?b), and having an outer diameter (A) smaller than an inner diameter (I) of the guide tube (6).

Abstract: A portable power tool includes a housing, and an impact mechanism movably supported in the housing and having a front opening for receiving a working implement and a hammer piston for delivering hammer blows to the working implement. The impact mechanism is supported in the housing by a pivot device in a point located between the forward and rear ends of the impact mechanism and allowing longitudinal and pivotal movements but preventing in the support point radial and rotational movements of the impact mechanism relative to the housing. A resilient device is located at a distance from the pivot device and is arranged to bias the impact mechanism to a neutral position relative to the housing and to absorb vibration movements of the impact mechanism to protect the housing against such vibration movements.

Abstract: The invention relates to a rotary drive assembly for a drill rod having an outer tube and an inner rod extending at least in sections inside the outer tube, comprising a first gear unit having at least a first drive unit for driving the inner rod in a rotating manner and a second gear unit, which is offset to the said first gear unit in the longitudinal direction of the drill rod and has at least a second drive unit for driving the outer tube in a rotating manner. In accordance with the invention provision is made for the second drive unit to be spaced from the second gear unit and for the second drive unit to be arranged adjacent to the first drive unit on the first gear unit.

Abstract: The invention relates to the transmission of power and/or data from/to a stationary part of a machine tool 200 to/from an accessory 100 mounted in the spindle 210 of the machine tool 200. A first electrical link or interface 1a,1b,1c,1d provides electrical communication between the stationary part 200 and the spindle 210, and a second electrical link or interface 3 is provided electrically connected to the first electrical link at the accessory mounting area 230. The second link 3 is in the form of electrical contacts. The invention extends to an accessory shank 360 for mounting to the spindle 210 of the machine tool, and also to an accessory 100 e.g. in the form of a measurement probe, connected to the said shank 360.

Abstract: A surge protector which has a metal grounding plate having holes and tubular sleeve guides, standard UL-approved ground rods that are inserted through the sleeve guides and are affixed to the sleeve guides using a durable exothermic weld, and leads attached at one end to the grounding plate also using an exothermic weld to affix any number of grounding devices, traditional ground rings, electronic equipment, structures, sites or combinations thereof. The durable exothermic weld is a permanent connection that stands in contrast to commonly used mechanical connections. The present invention also has a minimal footprint requirement allowing for placement in areas where space limitations are unsuitable for placement of conventional grounding rings. The present invention can be used in combination with or in lieu of conventional grounding rings.

Abstract: An electrical grounding strip has a first link and a second link, wherein the second link is connected directly to the first link, and each of the first and second links has a portion lying substantially in a plane and has at least one electrically conductive spike attached to the portion. The spike projects generally orthogonally to the plane of the link portion. An electrically conductive ground strap is in electrically conductive contact with the spikes of each of the first and second links.

Abstract: A superconducting cable having a smaller outside diameter and a DC power transmission method utilizing this superconducting cable. The superconducting cable (1) comprises two stranded cable cores (2) each having a superconductor layer (4) of a superconducting material and an external superconducting layer (6) and contained in a heat insulating pipe (8). Each cable core (2) consists of a former (3), the superconductor layer (4), an insulating layer (5), the external superconducting layer (6), and a protective layer (7) arranged sequentially from the center. In the case of unipolar transmission, the superconductor layers (4) provided to both cores (2) are fed with an unipolar current and used as a supply line and the external superconducting layers (6) provided to both cores (2) are fed with a return current and used as a return line.

Abstract: A telecommunications cable comprising four twisted pairs of conductors and a separator spline comprised of a principal dividing strip and a first subsidiary dividing strip attached longitudinally along a first side of the principal dividing strip and a second dividing strip attached longitudinally along a second side of the principal dividing strip, the spline separating the four twisted pairs such that they are arranged in a staggered configuration. A telecommunications cable comprising a first set of two twisted pairs of, conductors arranged on opposite sides of and running along an axis and separated by a first distance and a second set of two twisted pairs of conductors on opposite sides of and running along the axis and separated by a second distance less than the first distance. Each of the first set of twisted pairs has a twist lay which is shorter than a twist lay of either of the second set of twisted pairs.

Abstract: A first insulating layer 1 is formed by electrodeposition coating on the surface of an outer circumference of a linear conductor m wherein the cross sectional shape thereof is substantially square, and further thereon, a second insulating layer 2 is formed by dipping. In the formation of the first insulating layer 1, swelling occurs in the first insulating layer at a corner portion of conductor m due to the electrodeposition characteristics of electrodeposition coating. The relative concavo-convex occurs on the surface of the layer 1 by the swelling. The concavo-convex is planarized by the second insulating layer formed in accordance with film-forming characteristics of the dipping, whereby an insulated square wire superior in voltage resistance and conductor space factor is obtained.

Abstract: Disclosed is a fiber reinforced plastic wire used as the overhead transmission cable. The fiber reinforced plastic wire for a strength member of an overhead transmission cable according to the present invention includes a wire having a predetermined diameter and composed of thermoset matrix resin; and a plurality of high strength fibers dispersed parallel to a longitudinal direction in an inside of the wire, the high strength fibers being surface-treated with a coupling agent to improve interfacial adhesion to the matrix resin. The fiber reinforced plastic wire of the present invention has the high tensile strength at the room temperature and the high temperature since its high strength fiber is surface-treated with a coupling agent. The fiber reinforced plastic wire can be also effectively used as the strength member in the overhead transmission cable since it has the excellent low coefficient of thermal expansion, etc. and is light-weight.

Abstract: The present invention includes a power cable tension control device having at one end an adapter capable of insertion into a computer port and at the opposing end a cable retaining structure for retaining a power cable, such as an AC power cable. The adapter does not electrically communicate with the retained power cable and therefore does not act as a conduit through which the power cable electrically communicates with the computer. The computer cable communicates with the computer using a port away from the adapter. Thus, the present invention provides a device that further anchors the power cable to the computer thereby reducing strain on the plug region of the power cable or the computer port, which prolongs the life of the power cable or computer port.

Abstract: A ceramic electronic component achieves a sufficient drop resistance strength even when terminal electrodes are formed with a higher density. The ceramic electronic component includes a ceramic laminate including ceramic laminates which are laminated to each other, first terminal electrodes disposed in a peripheral portion of a bottom surface of the ceramic laminate, catch pad electrodes arranged in the ceramic laminate so as to face the respective first terminal electrodes, and sets each including at least two first via hole conductors, which electrically connect the first terminal electrodes and the respective catch pad electrodes.