Patents for H01F 7 - Magnets (20,067)
09/1999
09/23/1999DE19810612A1 Magnetic clamping strip for concrete formwork
09/23/1999DE19810241A1 Electromagnetic way valve e.g. in automatic drives of vehicles for changing gear
09/22/1999EP0944100A1 Method and apparatus for controlling electromagnetic valve in industrial vehicle
09/22/1999CN2340068Y Large-magnet-gap strong magnetic field high-gradient high-stability permanent-magnet type magnetic mechanism
09/21/1999US5955935 Electromagnet design
09/21/1999US5955934 Quiet ferrofluid solenoid with cushion
09/21/1999US5955792 Method and device for driving a load
09/21/1999US5953805 Magnet field concentrator for shaping metal parts
09/16/1999WO1999046783A1 Control of electrically powered actuation device
09/15/1999EP0941542A1 Apparatus for generating uniform magnetic fields with magnetic wedges
09/15/1999EP0630851B1 Magnetic attraction device
09/14/1999US5952589 Soft landing method for probe assembly
09/14/1999US5950605 For an internal combustion engine
09/09/1999DE19909305A1 Method of driving electromagnetic valve for actuating motor valve for driving engine inlet or outlet valves
09/09/1999DE19808780A1 Method of driving load, especially magnetic valve for controlling fuel delivery in IC engine
09/08/1999EP0940687A2 Open magnet with shielding
09/08/1999EP0940685A2 Shielded and open superconductive magnet
09/07/1999US5949320 Self fusing solenoid coil
09/07/1999US5949316 Magnetic reluctor structures and methods
09/07/1999US5947155 Linear solenoid valve
09/07/1999US5947092 For an internal combustion engine
09/07/1999US5946795 Method of manufacturing a micromechanical oscillating mass balance
09/07/1999CA2187662C Electromagnet energizing coil power circuit
09/01/1999EP0939293A1 Multipolar magnetic ring
08/1999
08/31/1999US5946535 Noiseless
08/31/1999US5946182 Power supply circuit for an electromagnetic coil having low DC and high AC voltage supply
08/31/1999US5945901 Magnetic head for magnetic pick-up tool
08/31/1999US5945899 Permanent magnet twister
08/31/1999US5944495 For pumping fluids from a fluid source to a fluid sink
08/26/1999WO1999042716A1 Pulsed-energy controllers and methods of operation thereof
08/26/1999DE19807875A1 Method for regulating the armature incident speed at an electromagnetic actuator by extrapolated estimation of the energy input
08/26/1999DE19807418A1 Control magnet, especially for a fluid valve drive, e.g. a hydraulic valve
08/26/1999DE19807181A1 Electromagnetic oscillating armature arrangement, esp. as an actuator for a gas changeover valve for engine or machine
08/25/1999CN2335238Y Step electromagnet
08/24/1999US5942963 Multiwound coil embedded in ceramic
08/24/1999US5942962 Dipole magnetic structure for producing uniform magnetic field
08/24/1999US5942961 Magnetized material having enhanced magnetic pull strength and a process and apparatus for the multipolar magnetization of the material
08/24/1999US5942892 Method and apparatus for sensing armature position in direct current solenoid actuators
08/24/1999US5941533 Volumetric pump/valve sphincter seal
08/19/1999WO1999041121A1 Pressure control valve
08/19/1999DE19806619A1 Electromagnetic setting device for engine valve control
08/18/1999EP0936636A2 Electromagnet
08/17/1999US5940262 Control circuit for an electromagnetic device for controlling an electromagnetic fuel control valve
08/17/1999US5939964 Compact magnetic module for periodic magnetic devices
08/17/1999US5939963 Electromagnetic actuator
08/17/1999US5939811 Electromagnetic device with stator displacement regulation
08/17/1999US5938172 Solenoid valve drive system
08/17/1999CA2176909C Refrigerant compressor with rotation detecting means
08/12/1999WO1999040593A1 A method for designing open magnets and open magnetic apparatus for use in mri/mrt probes
08/12/1999DE19901679A1 Electromagnet for translatory drive
08/12/1999DE19821804C1 Method of functional monitoring of an electromagnetically actuated gas changeover valve
08/12/1999DE19805417A1 Electropneumatic pressure transducer for pneumatic controls in motor vehicles
08/12/1999DE19805404A1 Drucksteuerventil Pressure control valve
08/11/1999EP0935262A2 Electromagnet
08/11/1999EP0823017B1 Process for driving the exciting coil of an electromagnetically driven reciprocating piston pump
08/11/1999CN1225334A Method and apparatus for controlling electromagnetic valve in industrial vehicle
08/10/1999US5936827 Device for controlling at least one electromagnetic load
08/10/1999US5936502 Magnet coils for MRI
08/10/1999US5936501 Electromagnetic coupling device with surge protection component
08/10/1999US5936500 Bi-stable self-adjusting actuator mechanism
08/10/1999US5936498 Superconducting magnet apparatus and magnetic resonance imaging system using the same
08/10/1999US5934231 Method of initiating motion of a cylinder valve actuated by an electromagnetic actuator
08/05/1999WO1999039106A1 Hydraulic valve, especially a hydraulic directional control-seat valve
08/05/1999WO1999038726A1 A securing device
08/05/1999WO1999024993A3 Electromagnet
08/05/1999DE19803567A1 Hydraulisches Ventil, insbesondere hydraulisches Wege-Sitzventil Hydraulic valve, in particular hydraulic directional poppet valve
08/05/1999DE19803433A1 Braking magnet control device for escalator, lift or moving walkway
08/05/1999DE19801363A1 Mehrstufen-Ventil, insbesondere Magnetventil Multi-stage valve, in particular solenoid valve
08/04/1999EP0933796A2 Electromagnetic trip relay in particular for earth fault protection devices
08/04/1999CN2332061Y Micro-consume energy-saving absorption-release device
08/04/1999CN2332042Y Numerical-controlled silicon-controlled magnet controller
08/04/1999CN1225188A Lifter with electropermanent magnets provided with a safety device
08/04/1999CN1044533C Drive circuit of an electromagnetic device
08/03/1999US5933067 For use with a power supply and a mechanism
08/03/1999US5931647 For pumping fluids from a fluid source to a fluid sink
07/1999
07/29/1999WO1999038174A1 Bonded magnet, magnet roll and ferrite powder to be used for their preparation, and method for producing the same
07/29/1999DE19859116A1 Electromagnet for switching or pressure regulation in automobile automatic transmission
07/29/1999DE19801201A1 Arrangement for emergency manual operation of switching magnets whose armature is movable in a pole tube to one end position by spring force and against spring force to a second end position by magnetic field stimulation
07/28/1999EP0932167A2 Hybrid-type magnet and stepping motor including same
07/28/1999CN2331063Y Forming die for radial permanent magnetic ring
07/27/1999US5930103 Control circuit for an electromechanical device
07/27/1999US5929732 Apparatus and method for amplifying a magnetic beam
07/27/1999US5927249 Electromotive adjustment device
07/22/1999WO1999036926A1 Device for emergency hand operation with switching magnets
07/22/1999WO1999036718A1 Multi-step valve, especially an electromagnetic valve
07/22/1999DE19901942A1 Device for opening and closing valve of internal combustion engine
07/22/1999DE19801529A1 Electromagnetic drive for producing powerful and rapid movement in valve
07/21/1999EP0929904A1 Lifter with electropermanent magnets provided with a safety device
07/21/1999EP0472607B1 Method and apparatus for controlling the operation of a solenoid
07/21/1999CN2330046Y Rotor-type electromagnet
07/20/1999US5926082 To be mounted upon a mounting seat of a fuel injector valve
07/20/1999US5924675 Automotive emission control valve having two-part solenoid pole piece
07/20/1999US5924435 Method of energizing an electromagnetically operable control valve, and fuel system incorporating same
07/20/1999CA2000757C Periodic permanent magnet structures
07/15/1999WO1999035656A2 Magnet assembly with reciprocating core member and associated method of operation
07/15/1999DE19900549A1 Actuator drive for model excavator shovel, lorry tipping mechanism, etc.
07/15/1999CA2317616A1 Magnet assembly with reciprocating core member and associated method of operation
07/14/1999EP0928493A1 System and method for servo control of nonlinear electromagnetic actuators
07/14/1999CN2329076Y Safety high power electriomagnet
07/14/1999CN1223005A Magnetic coil