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WO/1996/015531 |
A circuit having a stationary portion and a rotating portion (100) comprises a stationary encoder (210, 220), a power supply (500), a rotary transformer comprising a stator (410) and a rotor (420), wherein the stationary encoder (210, 22...
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WO/1996/014645 |
A fractionated-rectification high-voltage transformer including a voltage-boosting secondary winding (4) of which at least two output diodes (7', 9') connected to two different stages (4a, 4c) of the secondary winding are positioned on t...
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WO/1996/014646 |
A device for mechanically mounting a flexible cable (20) in a cylindrical sleeve (21), including an axially split connector (23) with at least two helical external threads (30) and internal projections (31). The cylindrical sleeve (21) h...
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WO/1996/002843 |
The invention concerns a voltage transformer (3, 4, 6) for metal-clad electric switchgear. The voltage transformer (3, 4, 6) comprises a measuring electrode (4), which surrounds a high-voltage conductor (7), and an outer electrode (3), w...
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WO/1996/001481 |
Epoxy resin casting compositions comprising (a) a liquid aromatic glycidyl or 'beta'-methylglycidyl ether or a liquid mixture of several aromatic glycidyl or 'beta'-methylglycidyl ethers containing on average more than one glycidyl ether...
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WO/1995/030992 |
Ignition coil to be mounted on a spark plug as an individual electric power supply for said spark plug. According to the invention, said coil comprises a cylindrical magnetic core (1), a primary winding (2) directly wound onto the core, ...
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WO/1995/028723 |
In a device (1) for the contact-free transmission of electrical energy from a power source (2) to a consumer (4), two transformers (11, 21), each provided with a power convertor (15, 25), are coupled without contact to a conductor (31) i...
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WO/1995/027291 |
The invention concerns a choke coil whose inductance increases above a given current range when the current increases. A ferromagnetic hollow body is disposed inside or outside the choke coil winding. The dimensions of the hollow body ar...
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WO/1995/026069 |
An electric machine (10) according to various aspects of the invention includes a transformer (120) having a rotating component (122) for transmitting power from a stationary portion (114) of the machine (10) to a rotating portion (112) ...
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WO/1995/024722 |
A connector device which can stably supply electric power and send and receive signals in a contactless way, i.e., without using any electrode contact, and without strict alignment of the device. The connector device is equipped with a p...
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WO/1995/024723 |
A current transformer, in particular for medium voltage switchboard plants, is preferably square shaped, has a top side, a back side, a front side and lateral sides, is resin-cast and provided with connections with the current flow in a ...
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WO/1995/024005 |
An apparatus for providing an electrically controllable inductor uses a first and a second magnetic core (20, 24) spaced apart from one another. A DC bias coil (22) is wound on the first magnetic core (20). An inductor coil (26) is wound...
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WO/1995/024050 |
A current transformer (1) is used for detecting the current flowing in a bar-type conductor (7) and comprises a rectangular magnetic circuit (2) and two coil formers (4) disposed on opposite sides of the magnetic circuit (2) for the seco...
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WO/1995/022849 |
The fixed section of a direct-acting non-contact feeder is constituted of a cylindrical primary conductor to which a high-frequency alternating current is supplied. The movable section of the feeder is constituted of a secondary conducto...
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WO/1995/013470 |
A high power high energy hybrid capacitive/inductive ignition system with stress-balanced coils Ti for internal combustion engines employing a dual discharge circuit comprising energy storage capacitor means (4, 4a) shunted by diode mean...
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WO/1995/011545 |
A loosely coupled inductive power transfer system suitable for transferring power to a mobile conveyer platform or a vehicle has pick-up coils wound on flux concentrator(s). One or more large flat horizontal ferrite cores (607, 608) are ...
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WO/1995/011544 |
A flux concentrator (1300) for an inductive power transfer system is made up from rectangular fingers (1301) of ferrite material held in close contact by compression means to form a large shock resistant core. The fingers are positioned ...
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WO/1995/008178 |
It is well known that induction regulators are used in transmitting signals in head drum structures in video devices or equipment for digital recording and playback of signals. Since each head on the head wheel requires its own induction...
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WO/1995/007792 |
A tool head (10) for use in machine-tools has a base body (11), a tool shaft (20) that axially projects on the base body (11) and may be coupled to a machine spindle (22) that rotates in a stator (24) on the machine side, at least one cu...
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WO/1995/006939 |
A multi-channel rotary transformer (300) including a stator (320) having winding elements (333, 336, 334, 335), and a rotor (310) mounted for rotation about a rotational axis and having a plurality of sector-shaped blades (311-318) each ...
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WO/1995/006319 |
A secondary ignition coil (412) is wound around a bobbin (400) having a plurality of slots (406, 408, 410) therein. The slots are spaced around the cylindrical wall of the bobbin (400) to provide for the rapid and uniform flow of resinou...
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WO/1995/004363 |
Device for transmitting variable phase and frequency electric power signals from a stationary unit (1) to a rotary unit (2). The primary winding (4) of a rotary transformer is fed by a fixed frequency electric source and the secondary wi...
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WO/1995/000961 |
An ignition coil is described having primary and secondary coils (208, 412), the primary coil (208) wound around a central core member (300) and including a permanent magnet (310) made of a magnetic material that is less than fully dense...
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WO/1994/028560 |
A power coupling system includes a source unit (1) which is to be connected to a power supply. The source unit (1) includes a first winding (P). A load unit (2) includes a second winding (S). Power is inductively coupled from the first w...
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WO/1994/027306 |
In a current transformer (1) within a metal enclosure (6) of high-voltage switchgear, between the secondary winding and the high-voltage conductor (10) there is a tube, in particular a support tube (2), which is conductively connected at...
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WO/1994/027157 |
The invention is related to a current transducer based on the measurement of magnetic flux density and a method for calibrating the same. The transducer comprises a frame structure (5, 8), adapted to said frame structure (5, 8), an essen...
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WO/1994/025304 |
This inductive power transfer system provides a capacitor (15), having a reactance equivalent to the inductive reactance of a pickup coil (14), in series between the windings of the pickup coil and the electrical load (16, 17, 18). A pow...
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WO/1994/023305 |
An electric current measuring device including at least one magnetic flux sensor (1) in the air gap (2) of a ring-shaped core (3) with at least one conductor (4) passing therethrough and carrying the current to be measured, a compensatin...
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WO/1994/020860 |
This invention concerns a current transformer (10) with a conductor forming an approximately U-shaped loop (11, 39) lying at least approximately in a single plane and through which the current to be measured flows. Located inside the loo...
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WO/1994/016454 |
An ignition coil is described having annular primary and secondary coils, the primary coil wound around a central core member and including a permanent magnet made of a magnetic material that is less than fully dense, and is interposed b...
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WO/1994/014174 |
A transformer secondary winding comprises a laminated structure which includes first and second outer sheets (11, 13) fabricated from an insulator material, sandwiched between the outer sheets is a thin flexible sheet (12) of a magnetiza...
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WO/1994/010003 |
An arrangement is disclosed for the inductive transfer of energy in the middle frequency range from a stationary, primary conductor arrangement designed as a stator to one or several movable secondary consumers equipped with conductor ar...
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WO/1994/010004 |
In a process for contactless energy transmission in charging the battery of a vehicle, in particular an electric car, by means of an inductive transmitter whose primary element (1) is stationary and whose secondary element (2) is attache...
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WO/1994/009558 |
A contactless power transfer system (30, 30'', 150, 300, 400), especially for powering underwater electric loads (34, 34', 34'', 306, 314, 315, 316, 434), including movable loads, such as underwater vehicles (308, 310), elevators (173), ...
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WO/1994/009544 |
A contactless recharging system (10, 100, 200, 300) and method for recharging a battery storage device (12) onboard an electric vehicle (14, 106, 302) has a primary converter station (20, 102, 202, 304) for converting power from a power ...
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WO/1994/006135 |
The invention concerns a current transformer designed for installation in a metal enclosure (1) at earth potential surrounding a high-tension conductor (2). The transformer includes at least one annular core (5), a secondary winding woun...
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WO/1994/006134 |
An ignition coil comprising: a C-shaped iron core member (100) defining an air gap between the terminal ends of the C-shaped member; a coil sub-assembly within said air gap comprising a primary coil member (200) and a secondary coil memb...
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WO/1994/003034 |
A high frequency electronic ballast (128) having a transformer (104) in which the transformer (104) has a primary winding (106) which is coupled to a secondary winding (108) via a primary flux path (1) from which flux can be diverted by ...
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WO/1993/026020 |
A non-contact power transmission apparatus, a non-contact signal transmitter (which will be referred to as the 'power coupler' and the 'signal coupler', respectively) and a separation type machine using the couplers. The power coupler is...
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WO/1993/026062 |
Magnetic circuits for communicating data in a tractor and trailer combination. A connector for interfacing electrical signals between a tractor (20) and trailer (30) which will be connected together such that the tractor pulls the traile...
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WO/1993/021585 |
The invention discloses a non-contact way to provide electrical power and two-way digital communications between a host computer (9) and its peripheral modules (8), such as IC memory cards, modems, and A/D converters. A special magnetic ...
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WO/1993/018529 |
The high-tension current transformer according to the present invention consists in three or four kinds of insulating units with one coil, said transformers being provided for storing and that may be assembled in very short time, so as t...
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WO/1993/016479 |
Disclosed is a helically wound core of ferrous material (14) used as a differential current sensor core in the ground fault sensor of a ground fault interrupter circuit. The ferrous material comprises a single strand of wire which is wou...
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WO/1993/014508 |
A transformer mounted on a vehicle, which has a small size and a light weight, and in which necessary reactive voltages and a stable characteristic of loose coupling among its output-side windings can be obtained. The transformer (4) is ...
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WO/1993/014509 |
Plane sheets which have the same shape as the magnetic circuit (1) and are relatively movable along their contact surface are arranged in a stack. The stack is grasped and part of the circuit is bent out of alignment with the plane of th...
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WO/1993/013588 |
A magnetic three-fold frequency multiplier for a metal melting furnace, in which the primary side is Y-connected so that resonance takes place in each of the phases of the three-phase AC power source, to cause the secondary side connecte...
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WO/1993/013533 |
An ignition coil assembly (2) for an internal combustion engine including an ignition coil housing (4) having integrally moulded mounting members (6, 8, 10) arranged on the outer perimeter of the housing (4) in non-interfering relationsh...
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WO/1993/013534 |
An ignition coil used for an ignition device of internal combustion engines. In order to reduce the size of the device, a high-tension terminal (13) is insert-molded in a bobbin (11) of a secondary coil portion (10) as a unitary structur...
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WO/1993/009345 |
In ignition coils (11) with a secondary connector section (17) moulded on their casings (13) which transmits the high tension to the sparking plug (18) and consists of a fixed connection dome (19) and a sparking plug connector (21) movab...
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WO/1993/006491 |
The magnetic circuit (1) is made in a single piece or consists of a stack of identically-shaped sheets. The height (H) of the air gap (2) is greater than the thickness (E) of a coil (5), enabling said coil to be inserted through the air ...
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