Patents for H01F 7 - Magnets (20,067)
01/1989
01/04/1989EP0297215A1 Electromagnetic clapper arrangement
01/04/1989CN1030125A Dynamic energy absorber
01/03/1989US4795929 Rotary actuator
01/03/1989US4795098 Electromagnetically actuatable valve
01/03/1989US4794941 Torque motor with hydraulic potentiometer for servo-distributor
01/03/1989US4794890 Electromagnetic valve actuator
12/1988
12/29/1988WO1988010500A1 Cylindrical nmr bias magnet apparatus employing permanent magnets and methods therefor
12/28/1988EP0296983A1 Three-dimensional double air gap high speed solenoid
12/28/1988EP0296782A2 Linear inductive transducer
12/28/1988EP0296698A2 Apparatus for magnetic field homogenization
12/28/1988EP0152404B1 Voltage adaptive solenoid control apparatus
12/28/1988CN88103464A Device to counterbalance the surrounding electrimagnetic radiation
12/27/1988US4794358 Magnetic field coil with disc-shaped conductor
12/27/1988US4794338 Balanced self-shielded gradient coils
12/27/1988US4793453 Electromagnetically controlled spring clutch mechanism
12/27/1988US4793372 Electronic vacuum regulator (EVR) with bi-metallic armature disk temperature compensator
12/22/1988DE3727351A1 Mechanically actuated acceleration sensor
12/22/1988DE3719306A1 Magnet for NMR tomographs and process for the production thereof
12/21/1988EP0296142A1 Device to counterbalance the surrounding electromagnetic radiation
12/21/1988EP0295744A1 Multipolar rotor
12/20/1988CA1247220A1 Shielded room construction for containment of fringe magnetic fields
12/15/1988WO1988009927A1 Device for fixing and adjusting a holder for carrying gradient coils
12/15/1988WO1988009926A1 Receiving aerial for nmr imaging apparatus
12/14/1988EP0294481A1 Use of an electromagnetic actuator
12/14/1988CN88210459U Electronic energy-saving device
12/13/1988US4791370 Gradient field structure and method for use with magnetic resonance imaging apparatus
12/13/1988US4790353 Electromagnetic hydraulic valve operator
12/13/1988US4790351 Solenoid valve
12/07/1988EP0293723A2 Magnetic coil system of an NMR imaging system, with superconducting coils and a shield for protection against eddy currents
12/07/1988CN87102026A Reactive power self-compensation transformer and motor
12/01/1988DE3716994A1 Electromagnetically actuable fuel injection valve
12/01/1988DE3716097A1 Rotating magnet
11/1988
11/29/1988USRE32793 Latching solenoid mechanism
11/29/1988US4788717 Telephone line interface option module
11/23/1988EP0291638A2 Linear actuator
11/16/1988CN87210093U Electromagnet for dc time-delay conversion valve
11/15/1988USRE32783 Solenoid construction and method for making the same
11/15/1988US4785210 Linear motor
11/15/1988CA1244866A1 Proportional solenoid
11/09/1988CN88202475U Two-direction proportional electromagnet with amplifier but without energizing coil
11/08/1988US4783062 Electronic hydraulic mount-internal solenoid
11/08/1988US4782671 Cooling apparatus for MRI magnet system and method of use
11/08/1988CA1244322A1 Hot pressed permanent magnet having high and low coercivity regions
11/02/1988EP0288864A2 Control circuit for dot matrix printer head
11/01/1988US4782315 Bistable polarized electromagnet
11/01/1988US4782298 MRI QD RF coil having diode switched detuning circuit producing reduced artifact
10/1988
10/26/1988EP0287570A1 Telephone line interface option module
10/26/1988CN87211038U 极化电磁铁 Polar electromagnet
10/25/1988US4780676 Method and device for cooling a resistive magnet system for nuclear spin tomographs
10/25/1988US4779838 Electromagnetically actuatable fuel injection valve
10/25/1988US4779582 Bistable electromechanical valve actuator
10/25/1988US4779314 Magnetic fastener
10/25/1988CA1243543A1 Permanent magnet, stored energy, print head
10/20/1988WO1988008200A1 Integral shield for mr magnet
10/20/1988WO1988008199A1 Dynamic energy absorber
10/20/1988DE3711961A1 Proportional valve system as well as use of a ball control valve as proportional valve
10/19/1988CN88200418U Electromagnetic locator
10/18/1988US4779070 High energy toroidal inductor
10/18/1988US4779049 Magnet assembly for magnetic resonance imaging system
10/18/1988US4778147 Electromagnetic solenoid
10/18/1988US4778112 Electromagnetic fuel metering and atomizing valve for a supply device on an internal combustion engine
10/18/1988US4777915 Variable lift electromagnetic valve actuator system
10/12/1988EP0181383B1 Spin resonance tomograph
10/11/1988US4777464 For NMR computerized tomography
10/11/1988US4776314 Switching circuit for controlling the current through an electrical consumer, in particular electromagnetic consumer
10/11/1988CA1243053A1 Ferrofluid-pole-piece-magnet apparatus and method of manufacture
10/05/1988EP0284874A1 Thermal interface for interconnecting a cryocooler and a magnetic resonance imaging cryostat
10/05/1988EP0284634A1 Electromechanical positioning device
09/1988
09/28/1988EP0284439A1 Magnetic field generating device
09/27/1988US4774487 Solenoidal magnet with high magnetic field homogeneity
09/22/1988WO1988007152A1 Solenoid device
09/21/1988EP0283150A1 A multilayered-eddy-current type strong magnetic field generator
09/20/1988US4771808 Apparatus for controlling the flow of gas
09/20/1988CA1242240A1 Biased electromagnet having a symmetrical configuration
09/14/1988CN87210377U Rolling core type electric-magnet
09/13/1988US4771256 Integral shield for mr magnet
09/13/1988US4771255 Solenoid with a mechanical locking linkage
09/13/1988US4771243 Magnetic resonance imaging apparatus including field-homogenizing magnetic elements
09/13/1988US4771198 Electromagnet system with protection against overheating
09/07/1988WO1988006798A1 System of permanent magnets for a strong magnetic field
09/07/1988EP0281192A1 Electromagnetic valve actuator
09/06/1988US4768892 Electromagnetic hammer actuator for impact printer
09/01/1988DE3705805A1 Method for the connection of an armature to a valve needle and fuel injection valve manufactured according to this method
09/01/1988DE3705771A1 Solenoid valve
09/01/1988DE3705082A1 Solenoid valve
08/1988
08/31/1988EP0280435A2 Adjustable quick release magnetic holding assembly
08/30/1988US4768009 Coil arrangement for correction of magnetic field
08/30/1988US4768008 MRI magnet system with vessel having composite first wall
08/30/1988US4767097 Stacked servoid assembly
08/30/1988US4766741 Cryogenic recondenser with remote cold box
08/25/1988WO1988006394A1 Magnetic deflector system for charged particles
08/24/1988EP0170056B1 Electrical flat coil actuator
08/24/1988CN88100722A Electromagnetic coil
08/23/1988US4766405 Dynamic energy absorber
08/17/1988EP0278756A2 Magnetic field generators
08/17/1988EP0278227A2 Actuating device for a hydraulic, electrically controlled proportional valve
08/17/1988CN86103570B Power-saving type electromagnetic mechanism
08/16/1988US4764743 Permanent magnet structures for the production of transverse helical fields
08/16/1988CA1240731A1 Magnetic roll for copy machines and method for manufacturing same
08/11/1988WO1988005958A1 Field core