Patents for H01F 7 - Magnets (20,067)
05/1979
05/08/1979CA1054203A1 Electric solenoid structure
05/01/1979CA1053647A2 Auxiliary power system and apparatus
05/01/1979CA1053646A1 Actuating device
04/1979
04/24/1979US4151499 Rotary solenoid with indirectly coupled output shaft
04/24/1979US4150924 Electromagnetic plunger pump
04/24/1979US4150738 Electromagnetic clutch
04/24/1979CA1053306A2 Solenoid with armature shaped for linear operation
04/24/1979CA1053298A1 Magnetic flux shifting ground fault trip indicator
04/17/1979US4150351 Solenoid having a linear response
04/10/1979US4149132 Method of manufacturing an electromagnet
04/10/1979US4148260 High speed transit system
04/10/1979CA1052432A2 Actuator mechanisms for wire matrix printers
04/03/1979US4148090 Apparatus for controlling an electromagnetic valve
04/03/1979CA1051737A1 Method, product and apparatus for cleaning the cuticle
04/03/1979CA1051735A1 Fuel injection systems for internal combustion engines
03/1979
03/20/1979US4145625 Electro-magnetic devices
03/13/1979US4144514 In either of two opposite directions
03/13/1979US4143532 Inductor for forming metals by the pressure of a pulsed magnetic field
03/06/1979CA1050175A1 Charged particle accelerator
02/1979
02/27/1979US4142169 Solenoid and method of manufacture
02/27/1979US4142113 Current pulse circuit for ferrite core memories
02/27/1979US4141547 Magnetic control closure system
02/27/1979CA1049601A1 Solenoid with close tolerance core guide
02/20/1979CA1048795A2 Auxiliary power system and apparatus
02/06/1979CA1048097A1 Rotary actuator having stationary armature and rotary field
01/1979
01/30/1979US4137514 Control mechanism
01/30/1979US4137513 Matrix print wire solenoid
01/30/1979US4136978 High speed electromagnetic printing head
01/30/1979CA1047627A1 Power transmission
01/30/1979CA1047597A1 Supply circuitry for electromagnets and electromagnets comprising this circuitry
01/23/1979US4136373 Bulk tape eraser
01/16/1979US4135138 Rotary solenoid
01/16/1979US4135119 Limited rotation motor
01/16/1979US4135106 Eddy-current retarders whose stator comprises a ring of electro-magnets
01/16/1979US4134698 Compact fail-safe buzzer
01/16/1979CA1046341A1 Resiliently mounted print magnet
01/09/1979US4134089 Electromagnet for an extremely inverse time overcurrent protective relay
01/09/1979CA1046113A1 Electro-magnet for direct current relays_
01/09/1979CA1045897A1 Printer head
01/02/1979US4132910 Linearly moving or rotated flat armature for motor and pulling magnets
12/1978
12/26/1978US4131866 Solenoid devices
12/26/1978US4131865 Three pole electromagnet
12/26/1978US4131719 Load-bearing surface for a solenoid
12/12/1978US4129846 Inductor for magnetic pulse working of tubular metal articles
12/12/1978US4129844 Multi-directional positioner
12/12/1978US4129028 Method and apparatus for working a hole
12/05/1978US4128856 Automatic resetting control circuit for air switch operator
12/05/1978US4128825 Magnetically actuated indicator
11/1978
11/28/1978US4127889 Electromagnetic damping mechanism for force motor
11/28/1978US4127835 Electromechanical force motor
11/28/1978US4127017 Method of producing magnetic bodies and the use thereof in magnetic locks
11/28/1978CA1043100A1 Magnetic display board and characters
11/07/1978US4123976 Attractive type electromagnet device for magnetic levitation running vehicles
11/07/1978CA1042049A1 Ac solenoid with split housing
10/1978
10/31/1978US4123691 Electromagnetic devices
10/24/1978US4122423 Permanent magnet magnetic control device having two control air gaps
10/24/1978US4122386 Uniform magnetic field generating device
10/24/1978US4121324 Fastening device
10/24/1978CA1041150A1 Coil and solenoid incorporating same
10/10/1978CA1040306A1 Bias field apparatus for magnetic domain memory device
09/1978
09/26/1978US4117435 Flap-armature electromagnet
09/26/1978US4116591 Fuel injection pumps
09/26/1978US4116031 Flux concentrator for electromagnetic pulling
09/19/1978US4115672 Vacuum switch and electro-magnetic coil assembly therefor
09/19/1978US4114532 Impact printer magnet assembly
09/12/1978US4114184 Control system for an electromagnet
09/12/1978US4114126 System for mounting an armature
09/12/1978US4114125 Plunger type solenoid
09/12/1978US4114124 Convergence apparatus with variably magnetized magnets
09/12/1978US4113142 Device for contactless separation of individual ferromagnetic components from a flow of components
09/05/1978US4112477 Circuit for energizing a fuel injector valve coil
09/05/1978US4112402 Compact fail-safe buzzer
09/05/1978US4112320 Anisotropic magnet structure, particularly segmental magnet structure for permanent magnet dynamo electric machines
09/05/1978US4112248 Terminal box for a lifting magnet
09/05/1978US4111027 Electromagnetic apparatus
08/1978
08/29/1978US4110718 Magnetic structure, particularly permanent magnet for motor fields, and method
08/29/1978CA1037604A1 Housing structure and magnetic biasing magnetic bubble memories
08/29/1978CA1037556A1 Driving circuit for printing electromagnet
08/29/1978CA1037555A1 Focusing magnet
08/22/1978US4109221 Retaining means for a solenoid assembly
08/22/1978US4108345 Electromagnetic stapler and safety trigger therefor
08/15/1978CA1036660A1 Magnetic control devices using permanent magnets_
08/08/1978US4105904 Electromagnetic actuators
08/08/1978US4105726 Internal combustion engines
08/01/1978US4104603 Tactile feel device
08/01/1978US4104548 Electric motor for general purposes (II)
08/01/1978US4103813 Sealing of controlled-atmosphere containers by magnewelding
07/1978
07/25/1978US4103266 Cooled lifting magnet with damped eddy currents and method for its fabrication
07/25/1978US4103221 Inductor with plurality of magnet pieces in air gap
07/18/1978US4101858 High torque rotary electromagnetic actuator
07/11/1978US4100558 Automatic-exposure control device for optical instruments
07/11/1978US4100519 Alignment means for a moveable pole-plunger assembly
07/11/1978US4100392 Assembly of a magnet and a pole piece
06/1978
06/27/1978US4097833 Electromagnetic actuator
06/20/1978US4096461 Magnet system for tunable YIG oscillator and tunable YIG filter
06/20/1978US4096400 Inductive load driving amplifier
06/13/1978US4095202 Coil for producing a homogeneous magnetic field in a cylindrical space
06/13/1978US4095124 Transformer/switch device
06/06/1978US4093931 Magnetic armature piece for rotary solenoid
06/06/1978US4093929 Method of synthesizing cylindrically symmetric static magnetic fields in a locally saturated magnet and apparatus providing said fields