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Patent Searching and Data


Matches 1,051 - 1,100 out of 8,974

Document Document Title
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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), ...  
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 ...  
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...  
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...  
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 ...  
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...  
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...  
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 ...  
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...  
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...  
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 ...  
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...  
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...  
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...  
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...  
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...  
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 ...  
WO/1993/004557
A high-voltage transformer of this kind has a multiplicity of windings (7) in chambers (4), with diodes (3) located between them. The aim of the invention is to make it possible to accommodate a multiplicity of diodes without significant...  
WO/1992/022744
Proposed is a fixation for the core of a coil, in particular an ignition coil, the fixation also acting as an earth contact. To this end, the bore (2), through the stack of laminations (1), for the fixation is designed in such a way that...  
WO/1992/021131
An apparatus for feeding a power in a non-contact way wherein a core (A) on a power feeding side and a core (B) on a power receiving side are respectively provided with a plurality of teeth with windings wound therearound and the tooth h...  
WO/1992/017929
A contactless inductive power distribution system operating at 10 KHz has a self tuning resonant power supply connected to a resonant primary conductive path (10110, 10111) comprising a pair of parallel litz wire conductors (10110, 10111...  
WO/1992/016743
In an ignition system without distributor, an ignition coil associated to half the cylinders is connected by a high voltage cable to a corresponding cylinder of the other half of the cylinder. The ignition coils are modularly assembled i...  
WO/1992/017044
There is provided an enclosure that encapsulates a current transformer (1) by utilizing snap together members (12, 14) while allowing for electrical coupling between the transformer and external wiring. Two housing members (9, 11) will s...  
WO/1992/015051
A transformer (100) having a shunt magnetic path (108A) and a shunt coil (108) is provided. The transformer (100) includes control circuitry to control the output of the transformer by controlling current flow in the shunt coil (108), th...  
WO/1992/015104
A current transformer which can be installed in an earthed metal casing surrounding a high-votage conductor has an annular core surrounded by a toroidal secondary winding and is protected by structurally simple means from overvoltages at...  
WO/1992/013277
Disclosed is a current transformer, mounted in at least one power line (11), for the measurement of transient, rapidly varying short-circuit currents, etc., in particular in gas-insulated, metal-encapsulated switchgear. The current trans...  
WO/1992/011648
The aim of the invention is to improve the dissipation of the heat produced by the operation of an ignition coil (18). In contrast to a conventionally designed ignition coil, which has two formers (27), one for the primary winding (17) a...  
WO/1992/010672
Prior engine ignition systems for a multicylinder spark ignited engine have been too complex and have incorporated external wiring cables and a plurality of transformer assemblies that placed the individual primary and secondary coils th...  
WO/1992/010906
In high-voltage transformers, in particular diode split-transformers, it is generally necessary to reduce as much as possible the size of the arrangement as a whole, for cost and weight reasons. The heat losses during operation of such a...  
WO/1992/009136
A magnetic circuit with several magnetic components integrated on one or more common magnet cores is utilized in a current supply circuit known per se. The circuit comprises a transformer, the secondary winding ends of which are connecte...  
WO/1992/007370
Proposed is a moulded-resin ignition coil with a high-voltage terminal designed to conduct the ignition energy between the ignition coil (7) and the ignition-unit cable (2) with only low losses. This terminal comprises a tight connection...  
WO/1991/019305
A current transformer comprising a circumferential core (12) and a through-going conductor (14) forming the primary winding of said transformer, and a secondary winding (16) wound on defined portions of the core (12) whereas the remainin...  
WO/1991/015022
A cable coupling transformer comprises a metal or ferrite former defining separate high permeability portions of a pair of flux paths, a winding electromagnetically associated with each high permeability portion, and a common low permeab...  
WO/1991/012107
A welding apparatus is disclosed to include an electrically insulating casing, first and second welding electrodes, and a welding transformer having a toroidal core, a multi-turn primary winding and a single-turn secondary winding. The c...  
WO/1991/005355
A high frequency matrix transformer power converter module (10) includes a dedicated, pre-wired secondary winding (26) wherein the electrical conductor forming the dedicated secondary winding (26) is made from a flat ribbon material (46,...  
WO/1991/004564
The device of the invention inductively links connector wires (6a; 6b) to a two-wire lead (10). The device has a housing (1) with a trifurcate ferrite core (2a; 2b), the central element of which is encircled by the two-wire lead (10) and...  
WO/1991/004411
In an ignition coil with a coil body having a wire winding, a connecting device (2) with connecting components (13, 14) for the beginning (16) and end (17) of the wire winding is to be coupled to the coil body (3). The connecting compone...  

Matches 1,051 - 1,100 out of 8,974