Matches 201 - 250 out of 323 < 1 2 3 4 5 6 7 >
Match Document Document Title
4455544 Magnetic circuit and induction device including the same  
The invention relates to a magnetic circuit for inductance devices, to an induction device incorporating such circuit, as well as a process for producing the above-mentioned circuit. The novel...
4453150 Electric shunt induction winding and automatic lamination cutting machine therefore  
This induction winding includes a magnetic core formed by a vertical stack of iron disks separated by air gaps. The disks (8) include a plurality of sector-shaped portions (1) each of which is...
4447795 Laminated grid and web magnetic cores  
A laminated magnetic core characterized by an electromagnetic core having core legs which comprise elongated apertures and edge notches disposed transversely to the longitudinal axis of the legs,...
4415874 Electric shunt inductance winding for an electricity power transport line  
The invention relates to a device for tightening the core and the upper and lower cross pieces of a shunt inductance winding by means of a plurality of tie rods (5, 6, 7) which are preferably seven...
4409523 Pincushion distortion correction apparatus  
A pincushion distortion correction saturable reactor is a saturable transformer comprising a core having four legs, controlled and control coils being coupled to the core legs in a perpendicular...
4390813 Transformer for driving Class D amplifier  
In an electrodeless discharge lamp of the type including an ionizable medium within a sealed envelope capable of emitting radiant energy when subjected to a radio frequency field, an oscillator for...
4356468 Transformer with magnetic screening foils  
A transformer comprising a plurality of conductive screening foils located between the core and the windings and between the primary and secondary windings. In order to prevent eddy current losses...
4334206 Ferrite core type transformer  
A ferrite core type transformer, such as a flyback transformer used in a television receiver, includes a ferrite core unit and a coil unit mounted on the core unit. The ferrite core unit is...
4305056 Transformer with gapped core  
In a transformer for use in a receiver set, a non-magnetic material arranged in part of a closed magnetic path established by a magnetic core is made of a plastic material such as paper mash or...
4301437 Impedance coil core  
An impedance coil core which includes a plurality of core legs and yokes which interconnect the core legs in an assembled condition of the core is provided with aligned recesses in the yokes and in...
4295112 Residual current transformer  
A residual current transformer comprises an annular magnetic core which has not a gap nor sectional part crossing said magnetic core but has one or more narrow sectional area parts.
4282567 Modified power transformer for self-oscillating converter regulator power supply  
The ferromagnetic core of a transformer in a switching regulator power supply is configured to improve the efficiency of the supply. Since the switching times and their resultant losses occupy a...
4257025 Laminated metallic plates for supporting core leg in inductive electrical devices to determine magnetic circuit  
A magnetic circuit for inductive electrical devices, preferably reactors, comprises a frame consisting of yokes and side walls, the frame having a preferably rectangular cross-section and being...
4249153 Ring transformer for resistance butt welders  
According to the invention, the ring transformer for resistance butt welders comprises a plurality of sections, each composed of a non-closed magnetic core, a part of the primary winding and a part...
4240057 Inductive element construction, particularly fluorescent lamp ballast  
To permit adjustment of the air gap of an inductance unit suitable as a ballast for fluorescent lamps particularly in form of a leakage transformer or as a choke, for multi-voltage connection, an...
4238753 Transformer core gapping and lead anchoring arrangement  
A transformer formed of primary and secondary coils wound concentrically about a bobbin and maintained in spaced relation by a precision spacer. Two symmetric, L-shaped, ferrite core elements are...
4224500 Method for adjusting electrical devices  
A laser beam (23) is directed at a portion of at least one of a pair of opposed sections (12 or 13) which define an air gap (22) in an inductive device (10). That portion is heated to cause the...
4199744 Magnetic core with magnetic ribbon in gap thereof  
A ferrite toroid has two radially extending gaps. Into each gap there is inserted an insulative shim having a magnetic metal ribbon folded over the shim. When current is applied to a winding on the...
4160966 Stabilized reactor  
A stabilized saturated reactor comprising a solid toroidal core of magnetic material. The core has at least one end face provided with plural circumferentially spaced slots. Each slot extends in a...
4146857 Ignition coil for engine ignition system  
The rod-shaped core portion carrying the high-voltage secondary winding is separated from the U-shaped core portion carrying the primary winding by an insulating partition integral with an...
4138636 Voltage regulating transformer having EI laminations and two center legs of different reluctance  
A shell-type voltage regulating transformer includes a magnetic core comprising a stack of modified EI laminations having a center leg forming two sections. One of the center leg sections defines a...
4122385 Saturable reactor current limiter  
A current limiter to protect circuit elements from excessive current caused by transient load impedance or power supply surges. A multiple branch element magnetic circuit includes at least one...
4099510 Ignition coil for internal combustion engine  
An ignition coil for an internal combustion engine comprises a magnetic c having a plurality of arms lying at an angle to each other, a primary inductive winding on one of said arms and a secondary...
4100520 Devices for controlling A.C. motors  
A device for controlling an A.C. motor having an electromagnetic field ining coil wound around a conductive element having at least one inwardly directed opening bound by surface areas thereof and...
4095206 Encapsulated transformer assembly  
A transformer assembly comprising a core structure having an open space, primary and secondary coil units mounted either in parallel or in concentric relationship on the core structure, and a...
4088953 Eddy-current test probe utilizing a combination of high and low reluctance materials to optimize probe sensitivity  
A coil of insulated wire surrounds a low reluctance core. A combination of low reluctance and high reluctance materials positioned adjacent said coil: (1) control the spatial extent of the magnetic...
4075547 Voltage regulating transformer  
A ferro-resonant, voltage-regulating transformer. The transformer has a primary winding formed about a portion of each leg in each of two spaced, juxtaposed cores. A regulated output voltage is...
4060759 Tube-insulated shell-core current transformer  
A shell-core current transformer comprising a tubular main insulator, a measuring core arranged at least substantially coaxially with the main insulator and comprising a primary winding and a...
4055826 Resiliently supported windings in an electrical reactor  
A reactor winding in the form of a high current, multi-turn, multi-layer insulated coil stack embracing an inner member of a magnetizable core assembly of a reactor is resiliently supported by the...
4048604 Magnetic core  
The present invention refers to a magnetic core comprising flat magnetic plates superimposed and joined in order to constitute the toroidal form of the core, creating an internal space for the...
4047138 Power inductor and transformer with low acoustic noise air gap  
A ferrite magnetic core includes a one-piece rectangular outer member with aligned circular apertures in which the ends of a cylindrical center member are retained to thus establish a radial air...
4032837 Current transformer  
A current transformer comprising a tubular main insulator, a number of first windings arranged around the main insulator, and a number of second windings arranged inside the main insulator. The...
4019122 Stabilized power supplies  
A constant-voltage transformer for stabilized power supply includes a primary coil and a secondary coil connected across a tuning capacitor. A magnetically continuous magnetic core links both the...
4009460 Inductor  
An inductor having a coil member commonly wound on a couple of closed magnetic circuits made of a soft magnetic material. A magnetic gap is provided at a part of the soft magnetic material of at...
3990030 Pincushion correction transformer  
For use in the deflection circuitry of a cathode ray tube, such as with a television receiver picture tube, a single pincushion correction transformer providing both vertical and horizontal...
3924174 Rotary power transformer  
This invention relates to a Rotary Power Transformer, wherein Primary and Secondary windings on a laminated ferromagnetic core are provided, the construction permitting one winding to be rotatable...
3921055 Welding power supply having dual output transformer  
A welding power supply incorporating a transforming device comprising a three legged ferromagnetic core structure wherein the third leg of the structure is separated from the other legs by at least...
3906421 Rod core choke for suppressor application in phase-gating circuits  
A choke structure employing a rod-type core, for suppressor application in phase-gating circuits with controlled semiconductor components, in which the core comprises laminae of standard...
3868538 FERRO-RESONANT HIGH VOLTAGE SYSTEM  
A cathode ray tube high-voltage supply system is of the type in which sawtooth-shaped pulses are developed in a first transformer winding in order to produce a scanning waveform in a deflection...
3868561 RESONANT CIRCUIT TRANSFORMER  
A parallel resonant circuit transformer of the type having a controllable rectifier element fed by an AC current supply, an inverter output circuit incorporating an inductor and a smoothing choke...
3842379 FOLDABLE OUTER EXTENSIONS OF A LAMINATED CORE STRUCTURE  
Magnetic core structures formed by stacks of laminations, of which the outermost laminations have protective extensions. The latter are folded against the edges of the inner laminations to permit...
3824517 INDUCTOR HAVING A MAGNETIC CASING FORMED BY STACKED STAMPINGS  
An inductor comprises a central core 1 having bevelled upper and lower edges. The core is surrounded by a coil or winding 3, and the magnetic circuit is completed by complimentary half shells 5 and...
3823589 INDUCTOR FOR MAGNETIC PULSE PRESSURE SHAPING OF METALS  
An inductor for magnetic pulse pressure shaping of metals comprises a concentrator having a radial slot and an axial opening for placing a part to be shaped therein; recesses made at the...
3815067 CHOKES OR REACTORS  
A choke or reactor has laminations which define a U-shaped structure having two outer limbs and a base. Further laminations define a central limb connected at one end to the base and surrounded by...
3803479 VOLTAGE REGULATING TRANSFORMER  
A voltage regulating transformer for providing a constant output is disclosed. The transformer has a coil connected in series with a capacitor to form a resonant circuit. The transformer is formed...
3795881 HIGH VOLTAGE CURRENT TRANSFORMER  
A high voltage current transformer comprising a hollow support insulator within which is arranged a main insulator, a magnetic circuit associated with this, at least one primary winding and at...
3792396 VOLTAGE TRANSFORMER  
A voltage transformer comprising a hollow support insulator within which is arranged a main insulator and associated with this, a magnetic circuit, at least one primary winding and at least one...
3775722 MAGNETIC CORE STRUCTURES FOR INSTRUMENT TRANSFORMERS  
A magnetic core having a plurality of lamination layers. Gaps are located in the lamination layers to reduce residual magnetic flux and are displaced from each other in adjacent lamination layers...
3772625 TRANSFORMER FOR PRODUCING OR MEASURING HIGH AND VERY HIGH POTENTIALS OR FOR MEASURING CURRENTS AT HIGH POTENTIALS IN CASCADE CONNECTION  
The transformer includes an iron core with low voltage and high voltage windings, or high voltage winding parts which are spaced from each other and connected by coupling windings. The iron core is...
3748618 RADIO FREQUENCY CHOKE  
A radio frequency choke for reducing radio frequency interference in switching circuits as for example for gating bi-directional alternating current comprising a composite core with a first portion...
Matches 201 - 250 out of 323 < 1 2 3 4 5 6 7 >