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)
07/1982
07/06/1982CA1127276A1 Dc motor control with alternate action solenoid drive circuit
06/1982
06/29/1982US4337449 Magnetic transducer with a movable magnet
06/24/1982WO1982002115A1 Electronic device for the energization of an electromagnetic element
06/23/1982EP0054107A1 Electromagnet
06/22/1982US4336564 Solenoid control circuit
06/22/1982US4336132 Valve for a wet jigging machine for separating minerals
06/15/1982US4335418 Electronic interrupter
06/15/1982US4334708 Electromagnet for moving iron objects
06/15/1982CA1125603A1 Fuel injection pumping apparatus
06/10/1982WO1982001842A1 Device for oriented feeding ferromagnetic parts
06/08/1982US4334205 Electromagnetic devices
06/08/1982CA1125087A1 Impact print head
06/02/1982EP0052651A1 Linear solenoid device
06/01/1982CA1124779A1 Magnetic actuator using modulated flux
05/1982
05/26/1982EP0052177A1 Solenoid valve
05/25/1982CA1124366A1 Electronically operated portable fastener driving tool
05/19/1982EP0051702A1 Improved solenoid
05/18/1982US4330004 Electromagnetic valve
05/11/1982US4329673 Switchable permanent magnet holding device
05/11/1982US4329672 Polarized electromagnetic drive for a limited operating range of a control element
05/05/1982EP0050914A1 Electronic interrupter
05/04/1982US4328526 Apparatus for controlling the current through an electromagnetically actuatable injection valve in an internal combustion engine valve in an internal combustion engine
05/04/1982US4327693 Solenoid driver using single boost circuit
05/04/1982US4327692 Apparatus for controlling the de-excitation time of electromagnetic devices, in particular electromagnetic injection valves in internal combustion engines
05/04/1982CA1123036A1 Electric spool for dry axial solenoid
04/1982
04/28/1982EP0050303A1 Process for manufacturing magnetic pole assembly
04/27/1982US4327346 Anisotropic polymeric magnet in the tubular form and process for producing the same
04/27/1982US4327345 Solenoid having a multi-piece armature
04/27/1982US4327344 Solenoid with mechanically latchable plunger
04/27/1982US4326696 Solenoid valve
04/27/1982CA1122638A1 Linear electromagnetic actuator with permanent magnet armature
04/20/1982US4326139 Electromagnetic devices
04/20/1982CA1122061A1 Printers
04/14/1982EP0049580A1 Magnetic door catches
04/13/1982US4325043 Polarized magnet system
04/13/1982CA1121654A1 Electromagnetic drive for recording pins in a matrix printer
04/07/1982EP0049188A2 Driver circuit for a fuel injector
04/06/1982US4323944 Control circuit for an electromagnet
04/06/1982US4323150 Magnetic rail construction
03/1982
03/30/1982US4321946 Armature position monitoring and control device
03/30/1982CA1120986A1 Positioning means for limited rotation electric motor
03/23/1982US4321652 Low voltage transformer relay
03/23/1982US4321571 Rotary actuator with selectable response characteristics
03/23/1982US4321570 Release electromagnet
03/23/1982CA1120525A1 Electromagnetic actuator
03/17/1982EP0047614A2 Circuit for controlling an electromagnet
03/17/1982EP0047264A1 Magnetic decoupler.
03/16/1982US4320371 Tractive solenoid device
03/16/1982US4320342 Magnet coil arrangement for generating linear magnetic gradient fields
03/10/1982EP0046936A2 Welding form provided with a coil
03/09/1982US4319301 Circuits for electromagnet energization control
03/09/1982US4319211 Electromagnetically driven device
03/02/1982US4318155 Residual magnetism reversing circuit for an electromagnetic clutch
03/02/1982CA1119119A1 Method of operating and arrangement for a contactless holding system for electromagnetic trigger devices
02/1982
02/24/1982EP0046245A1 Device for gripping metallic workpieces
02/23/1982CA1118820A1 Electromagnetic switch means for a flow control device and the like having reduced shock levels
02/16/1982US4316167 Electromagnet with a moving system and permanent magnet, especially for contactors
02/16/1982US4316056 Control circuit for electromagnetically-operated recorders in teleprinting devices
02/16/1982US4315568 Magnetic rail for magnetic belt conveyor
02/09/1982US4315297 Hammer drive safety device for printer
02/02/1982US4314305 Solenoid drive circuits
02/02/1982US4314219 Permanent magnet type lifting device
01/1982
01/26/1982US4312316 Fuel injection pumping apparatus
01/26/1982CA1117000A1 Magnetic casing depth marker
01/19/1982CA1116681A1 Electro-magnetic actuator of telescopic tapered construction
01/19/1982CA1116680A1 Solenoid construction
01/12/1982US4310868 Fast cycling, low power driver for an electromagnetic device
01/12/1982US4310820 Magnetizing device
01/12/1982US4310819 Magnetic beam adjusting arrangement
01/12/1982US4310799 Coil winding for quadrupolar fields
01/12/1982US4310796 Magnet assemblies with plural metallic foil contact members for pipeline inspection vehicles
01/12/1982US4310188 Magnetic switch for attractive latch
01/12/1982US4310143 Electrically controlled proportional valve
01/12/1982CA1116107A1 Low emissivity liquid nitrogen dewar
01/05/1982US4308891 Terminal blocks and indicator for solenoid valves
12/1981
12/29/1981US4308490 Device for compensating the gain of a servo-controlled circuit by negative current feedback
12/29/1981CA1115153A1 Fuel system for an internal combustion engine
12/22/1981US4306589 Low power solenoid-operated air valve with magnetic latching
12/22/1981CA1114698A1 Fuel injection pumping apparatus
12/22/1981CA1114697A1 Fuel system for an internal combustion engine
12/22/1981CA1114671A1 Print wire solenoid
12/15/1981US4306268 Electromagnet control circuit
12/15/1981US4306207 Self-sustaining solenoid
12/15/1981US4306206 Linear solenoid device
12/10/1981WO1981003575A1 Linear solenoid device
12/09/1981EP0041118A2 Driver circuit for an electromagnetic device having a coil and a movable armature
12/08/1981CA1113993A1 Tubular solenoid
12/08/1981CA1113992A1 Electromagnetic actuator with torque-compensating poles
12/01/1981US4303869 Control circuit for electromagnetic apparatus
12/01/1981US4303331 Magnet for use in a magnetic brush development system
11/1981
11/24/1981US4302743 Solenoid apparatus
11/11/1981EP0039651A1 Electromagnetic control block for actuating the shedding mechanisms for looms
11/10/1981US4299374 Solenoid valve
11/10/1981CA1112305A1 Superconducting switch incorporating a steering diode
11/03/1981CA1111902A1 Ac type electromagnetic device
10/1981
10/27/1981CA1111473A1 Electromagnetic positioner
10/21/1981EP0038128A1 Electro-hydraulic servo activator system
10/20/1981US4295553 Electromagnetic clutch
10/20/1981US4295453 Fuel system for an internal combustion engine
10/14/1981EP0037445A1 Improvements in solenoid operated directional valves
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