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577 results about "Connection form" patented technology

In mathematics, and specifically differential geometry, a connection form is a manner of organizing the data of a connection using the language of moving frames and differential forms. Historically, connection forms were introduced by Élie Cartan in the first half of the 20th century as part of, and one of the principal motivations for, his method of moving frames. The connection form generally depends on a choice of a coordinate frame, and so is not a tensorial object. Various generalizations and reinterpretations of the connection form were formulated subsequent to Cartan's initial work. In particular, on a principal bundle, a principal connection is a natural reinterpretation of the connection form as a tensorial object. On the other hand, the connection form has the advantage that it is a differential form defined on the differentiable manifold, rather than on an abstract principal bundle over it. Hence, despite their lack of tensoriality, connection forms continue to be used because of the relative ease of performing calculations with them. In physics, connection forms are also used broadly in the context of gauge theory, through the gauge covariant derivative.

Wireless headphones with selective connection to auxiliary audio devices and a cellular telephone

An apparatus comprising a pair of headphones which have selective port connections formed in their housings allowing connection with an auxiliary audio appliances such as an AM / FM radio, CD player, cassette players, MP3 player as well as a cellular telephone. The apparatus specifically has one port for connection to a cellular telephone which is connected to a switching circuit which when activated by the occurrence a telephonic connection interrupts the audio from the auxiliary audio appliance.
Owner:RESHEFSKY MARC ALAN

Stent having arcuate struts

Stents are provided having a circumferential element with first and second ends, a longitudinal axis, and arcuate struts disposed intermediate the ends. End portions of adjacent arcuate struts are joined by strut connections formed at the first and second ends. The struts are spaced arcuately relative to a plane that includes the longitudinal axis, such that they arc convexly or concavely relative to the plane. Another stent has a tubular main body with a longitudinal axis, first and second ends defining a lumen in communication with openings at the first and second ends, and circumferential elements disposed along the tubular main body longitudinal axis, whereby one or more link members join two or more of the circumferential elements. Methods of using a stent having a circumferential element having arcuate struts connected by strut connections are also provided.
Owner:COOK INC

Corrosion-resistant copper-to-aluminum bonds

A connection formed by a copper wire (112) alloyed with a noble metal in a first concentration bonded to a terminal pad (101) of a semiconductor chip; the end of the wire being covered with a zone (302) including an alloy of copper and the noble metal in a second concentration higher than the first concentration. When the noble metal is gold, the first concentration may range from about 0.5 to 2.0 weight %, and the second concentration from about 1.0 to 5.0 weight %. The zone of the alloy of the second concentration may have a thickness from about 20 to 50 nm.
Owner:TEXAS INSTR INC

Drilling Tool Steering Device

ActiveUS20090166089A1Shorten the lengthReliable and economical to manufactureDrilling rodsDerricks/mastsRelative displacementDrive shaft
The invention concerns a drilling tool steering device, characterized in that it contains, consecutively from upstream to downstream, a main body (1) and a steerable housing (2), joined respectively by at least one connection of pivot, sliding pivot, ball joint or annular linear type forming a first bearing (4), and at least one pivot connection forming a second bearing (5), to a bendable or flexible transmission shaft (3) which crosses them longitudinally, while a connection of pivot, sliding pivot, annular linear or ball joint type forming a third bearing (6) between said transmission shaft and the main body (1) is arranged in proximity to the end of said main body situated in the direction of the steerable case, and while steering is carried out thanks to means acting as a deflection system (7) for the essentially radial relative displacement of the main body (1) in relation to the steerable housing (2) in proximity to their interface, the said main body being optionally equipped on its periphery with bearing pads (9) of diameter less than or equal to the diameter of the drilling tool / bit (16), and the said steerable case being optionally equipped on its periphery with bearing pads (10a) of diameter less than or equal to the diameter of the drilling tool / bit (16) toward its end situated in the direction of the drilling tool / bit, and with fixed or expandable pads or clamps toward its end situated in the direction of the main body (1). Application to boreholes necessitating trajectory control.
Owner:MILLET

Assembly of two parts of an integrated electronic circuit

A process for assembling two parts of an integrated electronic circuit has two successive steps. During a first step, the two circuit parts are made into a single unit by molecular bonding, realized on respective application surfaces of the two parts. During a second step, electrical connections are formed from connection portions already present in the application surfaces of the two circuit parts. The connections formed extend across the bonding interface, and are compatible with a high reliability and a high level of integration of the circuit.
Owner:STMICROELECTRONICS (CROLLES 2) SAS

System and method of providing wireless connectivity between a portable computing device and a portable computing device docking station

A portable computing device (PCD) docking station is disclosed and may include an upper housing portion, a lower housing portion hingedly connected to the upper housing portion, and a PCD engagement mechanism formed in the lower housing portion, the upper housing portion, or a combination thereof, wherein the PCD engagement mechanism is configured to removably engage a PCD when the PCD is docked with the PCD docking station. Further, the portable computing device may include a wired dock connection formed in the lower housing portion, the upper housing portion, or a combination thereof. The wired dock connection may be configured to provide connectivity between the PCD and the PCD docking station.
Owner:QUALCOMM INC

Push-on Connector Interface

A push-on connector interface and associated spring ring adapted for use with, for example, existing standardized threaded female connectors, for example SMA or Type N connectors. A plurality of spring fingers of the male connector body engage the, typically threaded, outer diameter surface of the female connector body. A sleeve within the male connector body may be adapted to extend within a bore of the female connector body. A spring or spring ring located, for example, positioned within a groove or press-fit upon the sleeve has a plurality of deflectable protrusions which deform between the sleeve and an inner diameter surface of the bore and or are biased against the inner diameter surface. The connections formed by the bias of spring fingers and the deformation and or bias of the spring or spring ring creating a reliable mechanical and electrical interconnection between the male and female connector bodies.
Owner:ANDREW LLC

Superplastic forming (SPF)/diffusion bonding (DB) forming method of titanium alloy cylindrical four-layer structure

The invention belongs to a sheet-metal forming technology, and relates to a superplastic forming / diffusion connection forming method of a titanium alloy cylindrical four-layer structure. By adopting a novel blank structural form and a blank production method, the requirements on coating welding stopping agent and positioning a cylinder on the four-layer structure can be met, and the formation quality and the technological stability can be improved, the difficulty and complexity of a technological tool can be reduced, the SPF / DB formation of the titanium alloy cylindrical four-layer structure can be stably and reliably realized, and the formation quality and the technological stability can be improved. The SPF / DB technological method is enlarged from the formation of a flat sandwich structure to the formation of a cylindrical rotation sandwich structure, so that the application field of the process is enlarged, and good economic and technical benefit can be realized.
Owner:BEIJING AERONAUTICAL MFG TECH RES INST

Human-figure display system

A repositionable display system in the shape of a human figure that can be used to communicate information by holding signs or by making simple gestures; or it can be used to support various items such as clothing or accessories. The repositionable display is in the shape of a life-size human form comprising a head, torso, arms, and legs. A two-pin connection forms each shoulder and hip joint, thereby allowing for positioning of the arm and legs in multiple planes. A single-pin connection forms the wrist, elbow, and knee joints. Each of the pin connections are removable, thereby allowing for assembly and disassembly of the repositionable display system. A stand may be provided to maintain the repositionable display system in a substantially upright position. Cedar wood may be used to construct the repositionable display system which assists in repelling insects while emitting a pleasing aroma.
Owner:BUBLITZ REBECCA J +1

A differential protection method for negative sequence current of large power transformer

ActiveCN1964149AHigh protection sensitivityClearly distinguish internal and external asymmetrical faultsEmergency protective circuit arrangementsPhase correctionSecondary loop
The disclosed protection method for internal fault of large power transformer comprises: the protector samples the secondary current of current transformers on power transformer sides to obtain current instantaneous value and calculate complex number form of electric values by Fourier algorithm, corrects phase of connection form, and balances amplitude of transformation ratio; then, it calculates the complex number form of negative sequence current according to three-phase ac complex form, and computes negative sequence differential current and break current as the negative sequence differential protection principle to decide asymmetric inside and outside fault and drop out all breakers. This invention also contains exactly the negative sequence differential rate breaking feature and protection criterion, the adjusting means for protection values, the positive sequence current breaking criterion, and the block function for error action protection.
Owner:BEIJING SIFANG JIBAO AUTOMATION +1

Integrated circuit structure and a method of forming the same

An integrated circuit structure is disclosed. The integrated circuit structure includes a first package substrate including a radiating element, the radiating element having a radiating element connection extending from the radiating element. The integrated circuit structure further includes a first chip positioned adjacent to the radiating element connection, the first chip having a first chip connection on a surface of the first chip, wherein the first chip connection forms a capacitive coupling with the radiating element connection. A method of forming an integrated circuit structure is also disclosed.
Owner:NANYANG TECH UNIV

System and method for dealing with ground fault conditions that can arise in an electrical propulsion system

A method and system is provided for detecting and performing diagnostics regarding an incipient ground fault that may occur in an electrical propulsion system of a traction vehicle, such as a locomotive, transit vehicle, or off-highway vehicle. The method allows providing a first ground connection for the electrical propulsion system. This first ground connection forms a grounding path generally used by the electrical propulsion system during normal operation. The method further allows providing a second ground connection for the electrical propulsion system. This second ground connection forms a grounding path selectively usable in lieu of the first ground connection. A control strategy is defined for switching between the first ground connection and the second ground connection. A respective leakage current associated with at least one of the first and second ground connections may be monitored. Switching between the first and second ground connections may be controlled based on the monitored leakage current associated with at least one of the first and second ground connections.
Owner:GENERAL ELECTRIC CO

Scalable novel deformed lamp

The invention provides a scalable novel deformed lamp which comprises a rod group part A, a drive part B and a motive power input part C, wherein the rod group part A is connected with the drive part B through a revolute pair formed by a rod (6) and a support rod (8). A rod (5) and the rod (6) on a rod group (IV) of the rod group part A are respectively connected with a rod (7) and the connections form a parallelogram. The shape of the parallelogram is the same with shapes of the other parallelograms formed on the rod group (IV), the rod (7) and the vertical direction form an included angle, and the shape of the whole lamp can be adjusted through the included angle. The drive part B and the motive power input part C are connected with a coupler (14) through a lead screw. The rod group part A of the lamp is a dimensional circular arc camber, a main body of the lamp is formed by the camber, and a bulb of the lamp can be positioned on each rod piece. Scale deformation of the lamp is divided into two conditions of contraction and unfolding, degrees of the contraction and the unfolding are controlled by time of positive and negative rotating of a drive motor, and the overall shape of the lamp is flowerlike.
Owner:BEIJING JIAOTONG UNIV

Embedded stirring and rubbing slit welding method

The invention discloses an embedded stirring and rubbing slit welding method for dissimilar metals, which is especially suitable for large-area lap connection of aluminum or magnesium or harder metal materials. The embedded stirring and rubbing slit welding method comprises the steps of: firstly, processing one or more dovetail grooves on a second harder base material; secondly, assembling according to a lap connection form, and placing an aluminum plate on the upper sides of the dovetail grooves of the second harder base material; using a needle-free stirring head and installing in an inclining manner; starting the stirring head to rotate and enabling the stirring head to be in contact with the upper surface of the aluminum plate, wherein the pressing depth of the stirring head is limited to about between 0.1mm and 2mm and a welding interface needs not to be penetrated; after rubbing and preheating for several seconds at the starting end, moving the rotating stirring head or operating platform so that the aluminum plate is helically extruded in a groove of a lower plate and the welding or cladding is completed. Compared with the resistance slit welding, the method disclosed by the invention has remarkable energy saving advantage. Compared with the traditional stirring rubbing welding, the method disclosed by the invention has the advantages of no keyhole and no abrasion to needles by the harder base material. The method can be used for welding, and can also be used for preparing a bimetal composite plate.
Owner:西安英特金属复合材料有限公司

Fastening system

A fastening system for the releasable fixing of a second component (10) on a first component (12), such as the attachment of a covering component on a vehicle body component, has at least one spacer (20) fixed on one side of the first component (10) by a first fastener and provided on its opposite side with a first cling-fastener part (30). The first cling-fastener part can be brought into engagement releasably with a corresponding second cling-fastener part (32). The side of the second cling-fastener part facing away from the fastener elements (28, 34), can be fixed on the second component (12) by a second fastener (38). The spacer (20) can be fixed on the first component (10) by a screw connection forming the first fastener.
Owner:GOTTLIEB BINDER

Radial-tangential permanent magnet and electromagnetism mixed excitation generator

The invention provides a radial-tangential permanent magnet and electromagnetism mixed excitation generator, belonging to the technical field of an electrical appliance of a motor of an automobile. The excitation generator consists of rotors, a stator, a front end cover, a rear end cover and a rectifier, wherein the permanent magnet rotor and the brushless electrically-excited rotor are arranged on a shaft and commonly adopt one armature winding, a generated magnetic field is formed through combination in a parallel connection form in an air gap of the generator, and the size of the magnetic field formed by combining a permanent magnetic field and an electrically-excited magnetic field in the air gap of the generator is changed through regulating the size and the direction of the current passing the electrically-excited rotor, so as to ensure that the generator can output the direct current with stable voltage under the conditions of variable rotation speed and variable loads, thereby supplying electrical energy for electric equipment of the automobile.
Owner:SHANDONG UNIV OF TECH

Continuously heating and defrosting heat pump type air conditioner

InactiveCN101476801AEnsure continuous heating needsGuaranteed heating conditionsCorrosion preventionCompression machines with reversible cycleVapor–liquid separatorFour-way valve
The invention provides an uninterrupted heating-defrosting heat-pump type air conditioner, which comprises a compressor, a four-way valve, an outdoor heat exchanger, an indoor heat exchanger, an electric refrigerant heater and a gas-liquid separator, wherein the four-way valve is communicated with one end of the outdoor heat exchanger; an outdoor electronic expansion valve is arranged between the other end of the outdoor heat exchanger and one end of the indoor heat exchanger; a first check valve, a capillary tube and a first electromagnetic valve, which are in sequential serial connection, form a first circuit branch; one end of the first circuit branch is communicated with a pipeline between the other end of the outdoor heat exchanger and the outdoor electronic expansion valve; the other end of the first circuit branch is communicated with the pipeline between the other end of the indoor heat exchanger and a fourth interface of the four-way valve; a second electromagnetic valve and a second check valve in serial connection form a second circuit branch; one end of the second circuit branch is communicated with the pipeline between the outdoor electronic expansion valve and one end of the indoor heat exchanger; and the other end of the second circuit branch is communicated with the pipeline between a third interface of the four-way valve and one end of the gas-liquid separator. The air conditioner has the characteristics of stable indoor heating effects and thorough defrosting.
Owner:CHONGQING MIDEA GENERAL REFRIGERATING EQUIP

Method of manufacturing a semiconductor device

According to the method of manufacturing a semiconductor device, a lead frame is provided wherein the thickness of a tab-side end portion of a silver plating for wire connection formed on each suspending lead 1e is smaller than that of a silver plating formed on each lead. Thereafter, a semiconductor chip is mounted onto a tab. In this case, since the entire surface of the silver plating on the suspending lead 1e is in a crushed state, it is possible to prevent contact of the semiconductor chip with the silver plating when mounting the chip onto the tab. Consequently, in a die bonding process, the semiconductor chip can slide on the tab without contacting the silver plating and thereby making it possible to diminish damage to the semiconductor chip when mounted onto the tab and hence to possibly prevent cracking or chipping of the chip when assembling the semiconductor device.
Owner:RENESAS ELECTRONICS CORP

District air-conditioner distributed secondary pump system

The invention aims to provide a district air-conditioner distributed secondary pump system, which comprises refrigeration main engines 1, chilled water primary pumps 2, a water segregator 3, a water collector 4, and a profit and loss tube 5. According to the invention, in the two forms of an indirect connection 1 and an indirect connection 2, a chilled water secondary pumps 6, plate heat exchangers 7, user chilled water circulating pumps 8, and user tail end air processing devices 9 are mainly arranged on a user side; in the direct connection form, the chilled water secondary pumps 6, the user tail end air processing devices 9, and a bypass pipe 10 of a secondary pump suction inlet with a control valve are mainly arranged in the user side. The invention also provides a connecting form of distributively arranging the secondary pumps to a chilled water distribution system of each user building, and a corresponding operation control method. The system can well realize the hydraulic equilibrium of each paralleled loop circuit of a district cooling system transmission and distribution network, improves the operation efficiency of the secondary pumps, and greatly reduces the water pump energy consumption, thereby improving the energy efficiency ratio of the overall system, and increasing the safety of the overall district cooling system.
Owner:南京市建筑设计研究院有限责任公司

Method and apparatus for vibration welding of thermoplastic components

Vibratory welded connections are formed between first and second members (32, 33) of thermoplastic material by interposing a junction piece (47) of similar material and vibrating the junction piece (47) at high speed while pressing the first second members (32,33) in a controlled manner against opposite sides of the junction piece (47). Friction created by the vibration generates heat which melts a small amount of material at the engaging surfaces which upon cooling provides a strong welded joint having minimal flash. Entire frame systems such as window-frames can be fabricated by an apparatus system (120) which forms a friction welded joint between adjacent ends of the frame members (134, 135, 136, 137). Furthermore the frame can be fabricated around a panel such as a glazing panel. The welded connections formed by the system do not mar the finish of the frame members and produce no unsightly flash bead requiring subsequent machining steps for its removal.
Owner:BYSTRONIC MASCH

Special high strength grouting material for connecting reinforcement sleeve

InactiveCN105236869AReduce dosageRegulates hydration rateMass ratioRebar
The present invention discloses a special high strength grouting material for connecting a reinforcement sleeve. The special high strength grouting material for connecting the reinforcement sleeve comprises grouting material powder and water, wherein the grouting material powder is prepared from the following raw materials in percentage by weight: 45% to 50% of cement, 0.1% to 0.3% of a water reducing agent, 0.06% to 0.1% of a defoamer, 1% to 3% of a water retention tackifier, 0.025% to 0.05% of a composite retarder, 1% to 2% of a composite expansion agent; and and the balance of quartz sand, totalling 100, wherein the mass ratio of the grouting material powder to the water is 1 to (0.23-0.28). The special high strength grouting material for the connecting reinforcement sleeve provided by the present invention has the characteristics of high strength, high adhesion and slight expansion with no shrinkage; the high strength grouting material can be poured into the reinforcement sleeve to enable fixed connection formed between reinforcements and between the reinforcements and the sleeve, and has excellent durability.
Owner:SHANGHAI URBAN CONSTR MATERIAL CO LTD

Push-on Connector Interface

InactiveUS20050164551A1Quickly disconnectSimplified and interfaceElectrically conductive connectionsTwo pole connectionsEngineeringInterconnection
A push-on connector interface adapted for use with, for example, existing standardized threaded female connectors, for example SMA or Type N connectors. A plurality of spring fingers of the male connector body engage the, typically threaded, outer diameter surface of the female connector body. A sleeve within the male connector body is adapted to extend within a bore of the female connector body. A spring located, for example, within a groove on the sleeve deforms between the sleeve and an inner diameter surface of a bore within the female connector body. The connections formed by the bias of spring fingers and the deformation of the spring creating a reliable mechanical and electrical interconnection between the male and female connector bodies without use of the prior threaded collar.
Owner:ANDREW LLC

Coiled tubing dimple connection

A connection between coiled tubing and a connector includes a plurality of dimples formed by a tubing, each dimple is disposed within a respective pocket formed in a connector to form at least two rows of dimple-pocket connections, wherein the fit of the dimples within the pockets of the rows graduates from tighter to looser along the length of the connection. The connection may further include a seal member positioned between the tubing and the connector positioned between at least two of the rows of dimple-pocket connections formed. A method of connecting coiled tubing to a connector includes the steps of graduating the dimple-pocket connections from tighter to looser along the length of the connection.
Owner:SCHLUMBERGER TECH CORP
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