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| Number | Title | Issue Date |
| 8154369 | Method and device for controlling of a magnetic flux A device for controlling a magnetic flux in an electromagnetic system, wherein the system includes magnetically connected magnetic cores, between which a volume is arranged. The volume includes a controllable magnetic flux region and the magnetic flux region include... | 04/10/2012 |
| 7354021 | Magnet for an ionic drive for space vehicles A toroidally shaped magnetic device with distortion-free exit and access ports provides toroidal magnetic ionic drive systems for vehicles that achieve a more operationally efficient, uniform and stronger radial magnetic field. This is accomplished by magnetizing a ... | 04/08/2008 |
| 7229063 | Pressure control valve The invention concerns a pressure control valve for the control of the value of pressure in a hydraulic circuit, especially in a hydraulic circuit of a vehicle transmission, with a valve housing, with a solenoid coil, with an armature component group comprising an a... | 06/12/2007 |
| 7196601 | Temperature correction of wigglers and undulators An undulator includes a periodic arrangement of magnets to produce a periodic spatial magnetic field distribution in a magnetic gap defined by the magnets. The undulator further includes a temperature-compensating material selectively arranged to compensate for a te... | 03/27/2007 |
| 7019308 | Thermal compensation in magnetic field influencing of an electron beam A device for influencing an electron beam, for example a beam deflecting device in an electron beam lithography machine, comprises a beam influencing coil (13) operable to influence an electron beam (EB) in the vicinity of the device by way of a magnetic fiel... | 03/28/2006 |
| 6914248 | Particle-optical apparatus and method for operating the same A particle-optical apparatus is proposed as well as a method for operating the same. The particle-optical apparatus provides a magnetic field for deflecting charged particles of a beam of charged particles and comprises a body of a material with a permeability numbe... | 07/05/2005 |
| 6906606 | Magnetic materials, passive shims and magnetic resonance imaging systems A shim adapted for altering a magnetic field of a magnet includes a first material which exhibits an increase in spontaneous magnetization with an increase in temperature for a predetermined temperature range. ... | 06/14/2005 |
| 6725668 | Thermodynamic cycles and method for generating electricity An apparatus for performing a thermodynamic cycle comprising: a sample having a ferromagnetic phase transition temperature; means to magnetise the sample above the ferromagnetic phase transition temperature of the sample; and means to cool the sample to a temperatur... | 04/27/2004 |
| 6686688 | Color cathode-ray tube apparatus A color cathode-ray tube apparatus has a compensation mechanism for generating a magnetic field that compensates a change in a horizontal-deflection magnetic field due to a change in the temperature of horizontal-deflection coils. The compensation mechani... | 02/03/2004 |
| 6403956 | Temperature compensation for miniaturized magnetic sector Temperature compensation for a magnetic sector used in mass spectrometry. A high temperature dependant magnetic sector is used. This magnetic sector is compensated by a magnetic shunt that has opposite temperature characteristics to those of the magnet.... | 06/11/2002 |
| 6337031 | Flame-retardant resin magnet material There is provided a resin magnet material that has excellent flame retardancy, produces only a small amount of toxic substances when ignited, and yields very few molding defects; as well as an electron beam adjustment apparatus in which this resin magnet ... | 01/08/2002 |
| 6239680 | Magnetic field stabilization method, magnetic field generating apparatus and magnetic resonance imaging apparatus In order to provide a magnetic field stabilization method, magnetic field generating apparatus and magnetic resonance imaging apparatus that is not affected by the temperature distribution in an installation space, in stabilizing a magnetic field of a mag... | 05/29/2001 |
| 6043728 | Flame-resistant resin material, flame resistant resin magnet material, and electron beam controller comprising the flame-resistant resin magnet material Provided are non-halogen, flame-resistant, resin materials and resin magnet materials, and also electron beam controllers comprising the resin magnet materials. The resin material comprises (A) a non-halogen resin composition, (B) a metal oxide hydrate, a... | 03/28/2000 |
| 5742106 | Thermo-sensitive actuator and idle speed controller employing the same A thermo-sensitive actuator capable of operating without the need of providing a temperature detector as a separate member. The actuator includes a stator made of a magnetic material to form a yoke. A rotor is rotatably provided in an opening provided in ... | 04/21/1998 |
| 5628296 | Temperature-compensated exhaust gas recirculation system A solenoid exhaust gas recirculation (EGR) valve (12) includes a first inductive coil (48) that generates a magnetic field when energized by a signal from a control unit (13). The magnetic field drives a ferromagnetic armature valve (64) open and closed--... | 05/13/1997 |
| 5264813 | Force motor having temperature compensation characteristics A force motor having a cylindrical armature of ferromagnetic material is provided. An electromagnetic coil is disposed coaxially around the armature. First and second cylindrical plates are disposed on opposite ends of the armature in spaced proximity fro... | 11/23/1993 |
| 5114663 | Electromagnet for nuclear reactor shutdown system An electromagnet for a nuclear reactor shutdown system, which comprises upper and lower cores disposed in an axially symmetrical arrangement and capable of latching with and delatching from each other. When an ambient temperature increases, the upper and ... | 05/19/1992 |
| 5109693 | Thermally stabilized accelerometer A pair of torquer magnets each comprising a cup-shaped yoke is provided with a disk-like permanent magnet and a pole piece. A through-hole provided through the center of the torquer magnet and a spool member made of a magnetic compensating metal is insert... | 05/05/1992 |
| 5103200 | High-field, permanent magnet flux source A first shell of magnetic material having a hollow cavity is magnetized and as a remanence to produce a first uniform field in the cavity. The first shell has a temperature coefficient such that the first uniform field varies with temperature in a first di... | 04/07/1992 |
| 5023509 | Color CRT-yoke combination having conforming corrective magnetic field means attached to the CRT A color cathode-ray tube-yoke combination comprises a color cathode-ray tube having a glass envelope and a yoke for producing magnetic fields positioned thereon. At least one semi-flexible corrective magnet is attached to a curved portion of the envelope.... | 06/11/1991 |
| 4833434 | Superconducting electromagnet for NMR imaging A superconducting electromagnet for nuclear magnetic resonance imaging has a pair of Z gradient coils surrounded by a heat shield. The heat shield comprises an electrically-conducting tube having one or more cylindrical portions which have longitudinal sl... | 05/23/1989 |
| 4793372 | Electronic vacuum regulator (EVR) with bi-metallic armature disk temperature compensator A solenoid valve comprising: a stator; a coil responsive to current into thereto, and magnetically connected to the stator. The coil characterized such that its resistance changes with temperature to increase or decrease, as the case may be to vary the am... | 12/27/1988 |
| 4788834 | Method and system for controlling magnetic field generating unit in magnetic resonance imaging apparatus To reduce the running cost of an MRI apparatus, power supplied to a normal conductive coil from a pre-regulator is reduced in an idling mode. This reduction in power also reduces the heat generated in the normal conductive coil and a shunt resistor. A com... | 12/06/1988 |
| 4749975 | Cathode ray tube deflection device having heat dissipation means A deflection device generating magnetic field for electron beam deflection comprises, a cylindrical mold, a horizontal deflection coil provided inside the mold, a magnetic core attached to outside of the mold, a vertical deflection coil wound on the core,... | 06/07/1988 |
| 4737752 | Oscilloscope deflection yoke with heat dissipation means A high-performance deflection yoke providing deflection of an electron beam in a CRT at high rates at high deflection angles. The high-performance deflection yoke includes a heat sink contacting the deflection yoke coils to remove the heat produced in the... | 04/12/1988 |
| 4703296 | Thermal reed switch assembly A thermal reed switch assembly including two magnetic reed switches having two permanent magnets and at least two semicylindrical thermal magnetic members each having mutually different magnetic tansition points sandwiching the reed switch therebetween. A... | 10/27/1987 |
| 4673906 | CRT deflection yoke with rigidifying means Magnetic field formers in a cathode ray tube (CRT) deflection yoke for controlling the position of an electron beam in the CRT are secured to and maintained in position on the yoke by means of a foamed hot melt adhesive. An inert gas such as nitrogen or c... | 06/16/1987 |
| 4670726 | Convergence device for electron beams in color picture tube A convergence device for electron beams in a color picture tube includes a pair of four-pole magnet rings, a pair of six-pole magnet rings and a pair of two-pole magnet rings, the absolute value of the temperature coefficient of magnetization of which is ... | 06/02/1987 |
| 4516101 | Air-flow-rate sensors A air-flow-rate sensor having a thermo-magnetically operated switch including a U-shaped temperature sensitive ferromagnetic piece, a positive temperature characteristic thermister, and two terminal plates, which are stationarily mounted in an opening cha... | 05/07/1985 |
| 4484161 | Silicone rubber for relieving stress in magnetic material When two pieces of magnetic material are clamped together in a magnetic circuit, a silicone rubber piece is used to control the clamping pressure in order not only to prevent material stress at the clamping surfaces but also to compensate for the effects ... | 11/20/1984 |
| 4459574 | Driving circuit for a coil In the disclosed driving circuit for a coil, particularly for driving a coil in a device such as a camera whose shutter blades are driven with electro-magnetic force generated by a current flowing through the coil and a magnetic field in which the coil is... | 07/10/1984 |
| 4456898 | Thermal compensators for magnetic circuits Thermal compensators comprising at least one metallic alloy in amorphous form which are especially useful in stabilizing magnetic devices under conditions of changing ambient operating temperature are provided.... | 06/26/1984 |
| 4449094 | Temperature compensated magnetic damping assembly for induction meters A temperature compensated magnetic damping assembly for providing a braking torque on an electroconductive disk of an induction device includes a pair of permanent magnets each having an easy axis of magnetization. Each permanent magnet provides two easy ... | 05/15/1984 |
| 4377348 | Printer head for serial dot printer A serial printer head is provided which comprises a sandwich structure (1,3,5) of a first circular yoke plate (1), a cylindrical magnet (3) and a ring shaped second yoke plate (5); a plurality of electromagnets (2,4) positioned on the first yoke plate (1)... | 03/22/1983 |
| 4376272 | Magnetic field generators for use in electromagnetic focusing type cathode ray tubes In a magnetic field generator mounted about a neck of a cathode ray tube for focusing an electron beam and made up of a permanent magnet, a magnetic field adjusting mechanism for adjusting field intensity produced by the permanent magnet and a magnetic me... | 03/08/1983 |
| 4182984 | Magnetic damping assembly with temperature compensator for watthour meters A watthour meter damping assembly includes a U-shaped magnetic yoke and a pair of highly coercive and anisotropic permanent magnets projecting in facing relationship from the ends of the yoke. Opposing pole faces of the magnets form an air gap receiving a... | 01/08/1980 |
| 4168756 | Electromagnetically compensated scale A balancing scale or electromagnetically compensated weighing apparatus has an independently actuatable and temperature-sensitive magnetic device for balancing a load member; the magnetic device forms a magnetic circuit, and includes a temperature-sensiti... | 09/25/1979 |
| 4128010 | Temperature compensated permanent magnet/moving coil accelerometer A temperature compensated accelerometer of the type having a permanent magnet, moving coil rebalance system is disclosed. A cylindrical permanent magnet and surrounding sleeve produce radial magnetic fields in annular regions in which are located rebalanc... | 12/05/1978 |
| 4027194 | Core magnetron magnetic circuit having a temperature coefficient approximately zero and permeance related A core type magnetron is disclosed wherein a permanent magnet is provided in an anode resonator surrounding a cathode, characterized in that said permanent magnet has a reversible temperature coefficient of which is variable depending on the operating poi... | 05/31/1977 |
| 4023128 | Temperature responsive reed switch A temperature responsive reed switch having magnetic reed pieces, a permanent magnet disposed near a contact of the reed switch and being magnetized in an axial direction of the reed switch, two temperature responsive magnetic materials disposed adjacent ... | 05/10/1977 |
