Match Application Number Document Title
1 85100150 Long core differential transformer
This invention is a differential transformer acting as displacement transducer for measuring small displacement. It is characterized by that the length of the core of the differential tr...
2 89101649 Method of manufacturing permanent magnet
The present invention is related to a method of manufacturing permanent magnet and its product. The said method includes that an alloy powder is made through the shape processing and the...
3 85100666 Low iron loss cold-rolled orientation silicon steel plate (containing 4 Percent...
Besides adjusting the amount of main components such as C, Mn, and S etc., of a 4% Si steel, ALN is added as an auxiliary inhibitor. By controlling hot-rolling temp., improving heat-trea...
4 85100664 Method to decrease heating temperature of common grain-oriented electrical stee...
This invention concerns a method to decrease the heating temperature of 3% Si common grain-oriented electricl steel slab. The crystal boundary enriching elements Sb or Sn are added as in...
5 85100355 Design for making current ratio standard and the product thereof
The design is especially suitable for making double-stage current transformer and current comparator with wide-band. In accordance with the invention, a case shield are utilized which sh...
6 85100860 Method for mfg. ferro-rareearthmetal-boron system permanent magnetic material b...
The present invention relates to a permanent magnet manufacture process. Its characteristic is that the rare earth oxide is reduced directly by Ca (or Ca-hydride), the resulted rare eart...
7 85100770 Process for manufacturing magnetic core with constant permeability
The making of the core is characterized by using the special cold working process and the special final heat treatment so that the core has a wide range of usable magnetic field from O t...
8 85100667 Low iron loss high magnetic sensitive cold-rolled orientation silicon steel and...
Based on the content of 4% Si steel, by adjusting the level of Mn,Al,N as well as C in steel, adding MnS and AlN as strong inhibitors, controlling temperature of heating hot-rolled slabs...
9 200510049571 Mutual inductor
A mutual-inductor, exhibiting two coils mutual inductance changes by changes of positions in electrical experiments of higher educational institutions, mainly used for reducing commercia...
10 85100872 High accuracy LV voltage transformer compensated by booster
The main feature of this invention is that a ring-shaped core of the booster is also used as the main core of the voltage transformer, and a smoller compensating core is piled on the arb...
11 85101004 Differential transformer displacement sensor of anti-high temp. and steam risis...
This sensor is comprised of ceramic coil cylinder, case, link porcelain core, primary and secondary coils. The primary and secondary coil are both single layer and it is coiled by lacque...
12 85100977 Technical improvement for eliminating magnetism of generator and protection fro...
The main contents of the present invention is to use automatic magnetism-eliminating switch and non-linear resistance assembly which is connected paraletty to the magnetizing winding to ...
13 85100873 Heavy current transformer whose error can be measured by low current
A heavy current transformer is composed of a circular core, a compensating winding wound round said core, a magnetic shield which is composed of four circular cores mounted to internal p...
14 85102478 Driving device of electromagnetic braking
In this invention, a set of attractive electromagnets is used to get rid of the gap between the auxiliary frictional components in the prake. Then, an other set of repulsive electromagne...
15 85102592 Saddle coil for forming a uniform magnetic field
The objective of the invention is to form a uniform magnetic field of which uniformity is one order higher than uniformity of magnetic field formed by a helmholtz coil having same radius...
16 85101564 Electronically controlled coil assembly
Electronically controlled coil assembly for use in electrical and electronic applications such as tuned circuits, transformers, and devices which require or utilize a moving magnetic fie...
17 85101788 R.F. system for generating and/or receiving alternating magnetic fields
The system is arranged about an essentially cylindrical examination space and comprises at least four conductor segments which are oriented essentially parallel to the longitudinal centr...
18 85102180 General ballast
This invention includes three types. Every enterprise can reform its products according to this invention.
19 85101068 Magnetic apparatus
The said apparatus is composed of magnetic yoke, magnet which is fitted in the magnetic yoke and forms a substantially even magnetic field in the said magnetic yoke and several magnetic ...
20 85101455 Process for manufacturing permanent magnet
The process comp@rised the steps of forming an alloy powder having a average particle size of 0.3-0.8 microns,sintering the formed body at a temperature of 900-1200 deg.c,and subjecting ...
21 85102776 Three-position electromagnetic relay
This relay is driven by a three-position electromagnetic actuator with two electromagnetic coils. The armature has three working positions when the two coils are powered separately or no...
22 85103183 Arrangement for producing electromagnetic force.
In the device of the present invention, a cylindrical yoke iron is placed around the upper and the lower pole pieces, which are fixed to a permanent-magnet's upper and lower faces; there...
23 85102911 Electromagnetic actuator
An electromagnetic actuator comprises a casing mainly consisting of a stationary iron core or a combination of a stationary iron core and a yoke, the casing being formed with at least one...
24 85103906 Explosion-test type electro/displacement converter device
One set of explosion test electro/displacement convertor consists: a cylindrical magnetic yoke, which is placed on the center portion of the basin type magnetic yoke base through a piece...
25 85103560 Three-phase saturating reactor with seven legged laminated core
A three-phase saturating reactor including five intermediate legs and two outer yoke. The area of cross section of upper yoke, lower yoke and outer yoke, respectively, is of 1/2 of that ...
26 85103561 Three-phase transformer with four legged magnetic core
A three-phase transformer including two intermediate legs and two outer yoke. The area of the cross section of outer yoke, upper yoke and lower yoke, respectively, is of 1/2 of that of i...
27 85103498 Permanent magnet with magnetic field of high uniformity
The invention is a permanent magnet which may provide a magnetic field of high uniformity over a large area in the air-gap. It is composed of a closed yoke iron and several main magnets,...
28 85103757 High-tension resisting proporational electromagnet with bidirectional polar
This invention is a kind of electrieal-mechanical converter used for proportional valves and servo valves in fluidic control system. This proportional electromagnet takes advantage of sy...
29 85104348 2-17 type rare-earth permament magnet having temp. compensation
The present magnet consists: in that the alloy constituent, part of samarium is substituted by gadolinium, Sm/Gd equal to 4/1-3/2; and others, by weight the percentages are Co 45-47%, Cu...
30 85103640 Single phase output electric and magnet current system of transformer while equ...
The device is a new kind of electric and magnet current system of transformer. The key point is the throw-in of the primary coil of a transformer and the secondary coil of another transf...
31 85104747 High efficiency silicon steel sheet for electrical machinery
It is applied to various kinds of electrostatic induction equipments as well as large size electrical machinery, to save energy, raise electrical machinery efficiency and cause a decreas...
32 85104717 Coil arrangement
A coil arrangement including several windings, which are connected each other and are individually wound on each relative drum core and made from a continuous wire.
33 85104371 Peak transform
This invention is applied to the peak transformer for thyristor synchronous phased triggering. The primary winding is winded on the big-section main magnetic loop consisted of magnetic m...
34 85105310 On-load tap-switch with crankshaft
The loaded tap switch includes a insulating tube on which fixed contacts are mounted and the common contact rings. A controlling crankshaft is fixed in the insulating tube. A change over...
35 85105029 Rapidly auto-magnetizing demagnetizing apparatus controlled by SCR
This invention is mainly used in electro-magnetic suction cups of surface-grinding machine in machine work for magnetizing and demagnetizing. The characteristics of the apparatus are as ...
36 85105803 Ferromagnetic powder and method for producing the same
Ferromagnetic powder consists of magnetic metal oxide powder and a layer of magnetic metals formed on the surface of the powder. At least one metal in the layer of magnetic metals select...
37 85105863 35-110KV on-load shunting switch with bridge connection
This invention can be used to reconstruct the original 35-110KV non-exitatiogn voltage regulating main transformer into on-load voltage regulating transformer to improve the user voltage...
38 85106186 Technology of magnetic one-way valve
This invention is to design a magnetic circuit structure according to the conducting property of magnetic flux, which makes the magnetic conductivity increasing in one direction in the m...
39 85106215 Electric gas-isolated device
The electric gas-isolated device includes an integral and inseparatable current transformer wound around a housing of the gas-isolated connection bus being connected between two adjacent...
40 85106176 Rotating transformer
The present invention is composed of a stator with winding unit including the first winding and the second winding, a rotor with rotor winding configurated in accordance with the winding...
41 85106831 Designing method for D.C. electromagnet
The invention is especially fitable for the electronmagnets in conductor and brake in the D.C. operation with A.C. as power supply changing the structure of electronmagnets and taking th...
42 85106663 Permanent magnetic multi-stage magnet
This invention is appliable to permanent-magnet machine, accelerator, nuclear magnetic resonance laminagraphic device, etc. It uses the permanent magnet magnetized radially and adjusts t...
43 85106992 Electromagnetic device acting on inserted armature
An electromagnet coil with an U-shape iron core which acts on the inserted armature is fixed on a cylindrical core and every end face of the coil is mounted with a flat polar plate. The ...
44 85106944 High efficiency, engery saving ballast for fluorescent
This invention is based upon the theory of self-excited discharging phenomena in the gaseous discharging tube. Iron core choke and capacitor are also used with this device, while the flu...
45 85107436 Vacuum on-load tap-switch with secondary energy storage device
On-load tap switch in usual device is used in turning about as the transformer is operated in excited condition. With respect to ordinary vacuum on-load tap switch, the breaking capacity...
46 85107459 Frequency sensitive slip regulator with short circuit winding
This regulator is mainly composed of core, work winding, short-circuit winding, insulation components. It is used to regulate the slip for the small or medium type of mill motor with a f...
47 85107027 Electrical device with overheat protection
This invention relates to an electromagnetic module including an electromagnetic coil winded on a core made of ferromagnetic material. The temperature protection circuit includes a kind ...
48 85107789 Surface treatment for magnetic particle with chemical agent
This invention refers to a method for the surface treating of magnetic particle. An easily vaporized soluition of a certain chemical agent, for which titanate, phosphate or organo-silico...
49 85108084 Inductance element and method of mfg. the same
An inductance element of the invention comprises conductive paths of copper and a spool member arranged on a substrate, and insulated winding formed by a fine copper wire whose surface is...
50 85108166 Plastic magnetic materials and the method of formation of magnetic slot wedges
These plastic materials include mainly the magnetic particle, high adhesive resin, stone powder, and/or glassfiber and special hardening agent of resin. The magnetic particle content of ...
51 85107982 Electric contacts of load selector vibration ring
Each vibration ring 3 of the movable set has a shell which is concentric with the axle. The vibration ring is mounted near the axle. The shell is capable of connecting the two connection...
52 85107818 Method for winding double-layer motor coils
A double-layer coil for an electric motor is formed of a single continuous conductor with the two layers being wound simultaneously. A first length of conductor is wound about a pulley to...
53 85109738 Rare earth alloy powder and process for producing the same
A rare earth-iron-boron alloy powder which consists essentially of: 12.5 to 20 at % R wherein R1 is 0.05 to 5 at %, 4 to 20 at % B, and 60 to 83.5 at % Fe, wherein R1 is at least one heav...
54 85109359 Improved method for replacing PCB-containing coolants in electrical induction a...
Method of replacing a PCB-containing coolant in electrical induction apparatus having a vessel containing said PCB-containing coolant, an electrical winding and porous solid cellulosic el...
55 85109027 Multi-layered hollow coil, and an apparatus and method of manufacturing thereof
Multi-layered hollow coil and apparatus and method of manufacturing thereof are disclosed, which includes a first regularly wound first portion of a coil due to a wire from a wire source ...
56 85108803 Separated phase type transformer recombination from single to three phase
This recombination method of transformer is designed on a three-leg core, where upon to connect A-phase-winding which has a shunt capacitor in series with c-phase winding which has no sh...
57 85109230 Coil and method for its manufacture
A coil for electrical apparatuses has at least one axially constructed winding (1). The end surfaces of the coil are braced with respect to one another in the axial direction by means of ...
58 85109520 Process for the manufacture of a toroidal ballast choke and machine for use in ...
A process is disclosed for the manufacture of a generally toroidal or annular choke, in which a magnetic core is provided with an insulative layer, e.g., by an injection or other molding ...
59 85109695 Process for producing magnets having improved corrosion resistance
Fe-B-R type permanent magnet is produced by: forming an anticorrosive coating film layer on a Fe-B-R base permanent magnet material body by means of vapor deposition to thereby improve th...
60 85109470 Application of signal lamps in some electrical apparatus
The present invention relates to the improvement for contactor, electro-magnetic valve, single phase or threephase AC motor, pulling-cord switch, related switches, load switch, drop swit...
61 86100045 Harmonic inductor for generation of an energy conserving power wave
An energy convertor for generating a power output waveform that contains a fundamental sine wave and a controlled amount of the third harmonic wave to eliminate the sinusoidal peaks and t...
62 86101028 Electricity-saving fluorescent lamp ballast (ESFLB)
This electricity-saving fluorescent lamp ballast (ESFLB) unit is espacially designed for the fluorescent lamp ballastg with power less than 9 W, which consists of core and winding, but d...
63 86100458 Demagnetization device for PM
This device is composed of permanent magnet and magnetizer plate to form a magnetic system. the magnetic system rotates by mechanic force to form an alternating magnetic field which dema...
64 86100489 Transient voltage protection for toroidal transformer
An apparatus and method for protecting a toroidal transformer from damage due to voltage oscillations and dielectric stresses caused by applied voltage transients is disclosed. Two conduc...
65 86100947 Apparatus and method for fabricating a low voltage winding for a toroidal trans...
A winding apparatus for fabricating a multifilar low voltage winding for a toroidal transformer is disclosed. The apparatus uses a wire storage magazine 18 and a wire winding shuttle 20 w...
66 86100493 No solvent resin composition
Disclosed is a resin composition which comprises a mixture of a polyester, an acrylate urethane, in about stoichiometric proportion with the polyester up to about 10% excess polyester ove...
67 86100684 Changing from three-phase to two-phase and the three-phase equilibrium tran sfo...
This invention relates to a transformer whose valtage tap can be changed from three-phase system to two-phase system and the equilibrium transformer has a third voltage tap. The subside ...
68 86101224 Method of manufacturing electromagnetic members
Disclosed is a method of manufacturing an electromagnetic member having properties of magnetic anisotropy as well as electrical conductivity, comprising the steps of coating an outer circ...
69 86101101 Wearless clip-type branch switch without excitation
The device uses a quill, driving gear, drive gear, rolling element and roller. When switching, the sliding friction between the moving and fixed contacts is converted into rolling fricti...
70 86102344 Method for producing rare earth alloy
A rare earth alloy for producing permanent magnet comprised of: 15-65 atomic
71 91101851 Rare earth alloy
This invention relates to a rare-earth alloy used for the production of permanently magnetic steel, which contains such materials (atomic) as R1 (15-65%), Fe (35-83%) and B (0-15%), Wher...
72 86101368 Ni-Fe surpermagnetic alloy for single pole pulse
This invention concerns a prescription of Ni-Fe surpermagnetic alloy which has high initial magnetoconductivity and low residual magnetism Br, and a method for obtaining surpermagnetism....
73 86101693 Inductance adjustment for transformers
A core gap spacing arrangement for a transformer includes a length of twisted wire pair. The twisted pair has a relatively low packing density and is therefore compressible over a large r...
74 86100524 Contactual voltage-regulating autotransformer with multilayer winding and proce...
This invention relates to the field of electrotechnology. It changes the conventional single-layer winding structure on the annular core of the autotransformer. As a result of using the ...
75 86102005 Duplex-direction on load voltage regulating method and relevant device
This invention relates to a special device which is provided with three sets of windings on a normal E-type core to perform different functions instead of three transformers. The feature...
76 86101721 Transformer winding arrangement for a TV apparatus
A high voltage transformer incorporates a bobbin on which the primary winding is wound. The transformer auxiliary coils are wound directly over the primary winding with no intermediate la...
77 86102094 Method of making core laminations, and punch die for carrying out the method
In a method for making U-shaped core laminations and T-shaped magnetic circuit closing elements fitting in between the legs thereof, in a choke, ballast or transformer, in particular for ...
78 86101911 Polarized electromagnetic actuator device
A polarized electromagnetic actuator device advantageous for single-stable armature operation comprises an armature pivotally supported for movement between two different angularly displa...
79 86102259 Production method of anisotropic hard magnet
The present invention is related to the production method of anisotropic hard magnetic components in which ferrite magnetic powder of Ba, Sr and other elements is firstly mixed with para...
80 86102580 Ferromagnetic application and flux reinforcing technology
The ends and surroundings of ferromagnetic and electro-magnetic coil are tightly covered and wrapped by an anti-magnetic to make the fluxes distorted upon specified conditions, so as to ...
81 86103003 protection and indication to current transducer
On the current transducer there is a light indicator which permit one to directly monitor and remote monitor the work condition, it may automatically diminish abnormal high voltage and g...
82 86102795 Gyromagnetic regulating transformer
The gyromagnetic regulating transformer consists of an usual transformer and gyromagnetic ironcores. The gyromagnetic ironcores are made in various closed shaped and shaped shapes. In th...
83 86102755 Composition of soft-magnetic material and shaping method thereof
There is provided a soft magnetic material composition comprising 70 to 95 vol % of soft magnetic material powder, with the balance being a liquid thermosetting resin. The composition has...
84 86103432 Centre path current mutual-inductor with non-linear compensation
This inductor includes main iron core, magnetic shunts, secondary winding, magnetic shunt compensation winding, addtional non-linear compensation windings on both magnetic shunt and main...
85 86103027 Improvements in or relating to dielectric fluids
Disclosed is a dielectric fluid which comprises about 5 to about 40 molar percent of a first arene compound having up to seven substituent alkenyl carbon atoms and about 60 to about 95 mo...
86 86103523 Soft magnetic alloy for magnetic head
The invention concerns with a Nb-free abration-resistant, high permeability Ni-Fe complex alloy, which is suitable to make magnetic head for gamma-ferric oxide tape and chromium dioxide ...
87 86103420 New type welding transformer
It is a new type welding transformer. By changing the connection of the coils, three balanced phase source can be obtained, meanwhile, the power factor and efficiency of the welding mach...
88 86103505 Method and arrangement for controlling the magnetizing current passing through ...
The invention relates to a method and to an arrangement for controlling the respective conduction times of two directionally opposed electrical devices (9,10) which are mutually connected...
89 86103439 Water-cooling coil for electro-magnetic mixer
Disclosed is a water-cooled winding for an electromagnetic stirrer. An vesicular aromatic polyamide film which is apt to impregnated resin is wound as the main insulation layer to cirumfe...
90 86103586 Dual tunning low energy consumption filtering device and method
It is a kind of filtering device and method for filtering high order harmonics in electrical power, used for eliminating voltage wave distortions in the electrical power network resulted...
91 86103570 Power-saving type electromagnetic mechanism
The device includes a core, principal winding on the core, armature and elestic bias element which makes the armature recovery and locks the linkage of the armature after the principal w...
92 86104000 Compact whole body resistive magnetic resonance imaging magnet
A resistive magnet is provided having a cylindrical radio frequency/gradient coil assembly. A first and second cylindrically shaped main coil is situated coaxially on either side of the r...
93 86103941 Dynamic constant-moment method for electromagnetic attraction-operated device a...
A method for preserving the constant moment in dynamic closing process of an electromagnetic suction-operated device is suitable for traction electromagnets, valve electromagnets and oth...
94 86104241 Synchronous alternating-current magnetic biasing circuit inductive device and a...
This invention concerns the urgent protection device of the inductor and circuit. Its feature is that a method is presented to increase the permeability of toroidal core by adding A.C. m...
95 86105627 Invariable inductance and its manufacturing process
A leadless chip inductor having metallic terminal plates and a coil element fixed to the metallic terminal plates, the metallic terminal plates being partially enclosed, together with the...
96 86103334 Method for magnetic force of a permanent magnet being sealed or not sealed
The invention utilizes the principle that magnetic force of a permanent magnet can or cannot be sealed to make an absorption-turn type permanent magnet power machine. In the absorption-t...
97 86104379 Step transformer with central tapping
. Tapped transformer, in which the winding of each phase is split in its centre and each winding part is provided from this centre outwards with several taps, which are switchable in and ...
98 86104842 Electromagnet energy economizing controller
An energy economizing device used for electromagnet includes supplying power to the solenoid of electromagnet by switching power supply which can send out impulse power automatically. In...
99 86104497 Magnetic scale device
The magnetic scale material is prepared from a Cr-Co-Fe base alloy consisting of 15 to 40% by weight of Cr, 5 to 35% by weight of Co, 0.1 to 5% by weight of any one of Ti, V, Zr, Nb, Mo, ...
100 86104546 Electromagnetic hammer actuator for impact printer
The present invention relates to an assembly of electromagnetic actuators for the hammers of an impact printer arranged side by side and extending along a line. Each actuator comprises a ...
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