Patents
Sitemap › H01 - Basic electric elements › H01F - Magnets; Inductances; Transformers; Selection of materials for their magnetic properties › H01F 7 - Magnets
Patents for H01F 7 - Magnets (20,067)
10/1983
10/26/1983EP0092422A2 Permanent Mn-Al-C alloy magnets and method for making same
10/25/1983US4412196 Solenoid for directional valves
10/25/1983CA1155893A1 Direct current solenoid operator having non- magnetic core tube
10/19/1983EP0091685A1 Electromagnetic actuators
10/19/1983EP0091648A1 Energizing circuit for magnetic valves
10/18/1983US4410926 Arrangement for generating DC magnetic fields of alternating polarity for the magnetic-inductive flow measurement
10/18/1983US4410808 Electrical circuit for driving a plurality of inductive loads
10/18/1983US4409940 Speed governor for internal combustion engines
10/13/1983WO1983003387A1 Print wire actuating device and method of manufacture thereof
10/11/1983US4409638 Integrated latching actuators
10/11/1983US4409580 Solenoid actuator for electromagnetic valve
10/05/1983EP0090746A1 Magnetic device, particularly for handling
10/04/1983US4408129 Constant energy drive circuit for electromagnetic print hammers
10/04/1983US4407591 Ballistic wire matrix print head
10/04/1983US4407517 Protective boot for solenoid
09/1983
09/27/1983CA1154384A1 Device for automatically controlling the braking force of an eddy current and/or friction track brake being infinitely variable by means of shiftable or turnable permanent magnets
09/20/1983USRE31391 Voltage and current regulator with automatic switchover
09/20/1983US4405912 Solenoid assembly and method of making same
09/14/1983EP0088445A1 Circuit arrangements for transmitting energy to and from coils
09/14/1983EP0088444A1 Apparatus for transmitting energy to and from coils
09/13/1983US4404534 Electromagnetic assembly
09/13/1983US4403765 Magnetic flux-shifting fluid valve
09/13/1983CA1153590A1 Electronic interrupter
09/06/1983US4403204 Torque motor
09/06/1983CA1153450A1 Electronically operated portable fastener driving tool
09/06/1983CA1153415A1 Magnetic block with permanent magnets and mechanical on/off control
08/1983
08/30/1983US4402032 Electromagnet power supply and demagnetizer
08/30/1983US4401961 Permanent magnetic holding arrangement, particularly for temporary holding of ferro-magnetic parts
08/30/1983US4401960 Magnet assembly
08/30/1983US4401959 Magnetically actuated indicator
08/24/1983EP0086560A1 Gradient-coil apparatus for a magnetic resonance system
08/23/1983US4399595 Magnetic closure mechanism
08/23/1983CA1152410A1 Valve adjustment unit for hydraulic proportional-response valve
08/18/1983WO1983002811A1 Solenoid operated flow control module
08/17/1983EP0086121A1 Monostably functioning electromagnet having a permanent magnet armature
08/10/1983EP0085535A1 Solenoid
08/09/1983US4398150 Ironless high-homogenety magnet and its application to nuclear magnetic resonance imaging
08/09/1983US4398148 Electromagnetic coil system for examination of large objects by nuclear magnetic resonance and whole-body imaging machine using a system
08/09/1983US4397368 Driving circuits of solenoid actuated devices
08/09/1983US4397234 Electromagnetic print hammer coil assembly
08/09/1983CA1151714A1 Print wire solenoid
08/02/1983US4396874 Magnetic apparatus for producing movement
08/02/1983US4396441 Heating an iron-platinum alloy, homogenizing the solid solution and quenching
08/02/1983US4396243 Electrical connector for electromagnetic device
08/02/1983CA1151229A1 Solenoid having a multi-piece armature
07/1983
07/27/1983EP0018992B1 An electromagnet for automatic handling of iron objects
07/21/1983WO1983002522A1 Composite coils for toroidal field coils and method of using same
07/19/1983US4394592 Long stroke linear actuator
07/19/1983US4394081 Magnetically controlled shutter
07/12/1983US4393363 Magnet base for tool
07/12/1983US4393362 Electromagnetic indicator having a rotor disposable in discrete positions
07/12/1983US4392634 Electromagnetic valve
07/12/1983US4392435 Transport apparatus
07/12/1983CA1149852A1 Ferro-fluid bearing
07/06/1983EP0082929A2 Print hammer coil with a device for screening the magnetic field and for carrying off the heat
07/05/1983US4392117 Switching magnet
07/05/1983US4391356 Clutch engageable/disengageable by momentary energization of solenoid means
07/05/1983CA1149315A1 Printing and/or correcting device for printing machines
06/1983
06/29/1983EP0082799A2 Driver circuit for printers, in particular for matrix printers of the needle or hammer type
06/28/1983US4390857 Electromagnet
06/28/1983US4390856 Multipole solenoids
06/28/1983US4390130 Electromagnetically actuatable valve
06/28/1983CA1149011A1 Magnet coil arrangement for generating linear magnetic gradient fields
06/22/1983EP0081605A1 Bistable magnetic device
06/22/1983EP0081604A1 Pair of iron cores, and coil form bobbin for alternating current protection
06/21/1983US4389127 High speed dot matrix impact printer
06/21/1983CA1148613A1 Selective excitation of coils comprising a superconducting magnet
06/15/1983EP0081225A1 A formed permanent magnet
06/14/1983CA1147946A1 Magnet for use in a magnetic brush development system
06/09/1983EP0047264A4 Magnetic decoupler.
06/08/1983EP0080795A1 Controlled current solenoid driver circuit
06/07/1983US4387357 Rotary activator
06/07/1983US4386823 Objective lens driving device
06/07/1983US4386565 Printer apparatus using electromagnet
06/01/1983EP0080123A2 Electromagnet system for electromagnetic switches
05/1983
05/31/1983US4386316 Brake magnet for watt-hour meters
05/31/1983US4385877 Injection molding apparatus
05/24/1983US4385339 Fuel injector for an internal combustion engine
05/24/1983US4385280 Low reluctance latching magnets
05/11/1983EP0078324A1 Polarized electromagnetic relay
05/10/1983US4383234 Magnetic latch valve
05/03/1983US4382245 Levitation device
05/03/1983US4382243 Electromagnetic positioning device with piezo-electric control
05/03/1983US4382241 Valve adjustment unit for hydraulic proportional-response valve
04/1983
04/26/1983US4381532 Constant energy drive circuit for electromagnetic print hammers
04/26/1983US4381491 Device to slow solenoid actuation motion
04/26/1983US4381490 Magnetic state selector
04/26/1983CA1145381A1 Low voltage transformer relay
04/13/1983EP0016196B1 A magnetic latch device for a clapper type contactor
04/05/1983US4379277 Magnetic chuck
03/1983
03/30/1983EP0075303A2 Fuel injection valve drive circuit
03/29/1983US4378548 Lifting magnet incorporating cooling means
03/29/1983US4378546 Relay armature mounting
03/23/1983EP0074363A1 Apparatus for the medical treatment of living organisms, particularly human beings
03/22/1983US4377799 Control unit comprising electromagnets, particularly for actuating dobbies for weaving machines
03/22/1983US4377348 Printer head for serial dot printer
03/09/1983EP0073402A1 Gradient coil system for a nuclear magnetic-resonance technique device
03/09/1983EP0073399A1 Gradient coils system for a device of the NMR technique
03/03/1983WO1983000770A1 Solenoid having spring biased lost motion link
02/1983
02/17/1983WO1983000581A1 Rapid response solenoid
1 ... 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201