Electricity: magnetically operated switches – magnets – and electr – Magnets and electromagnets – With magneto-mechanical motive device
Patent
1994-09-19
1997-07-08
Donovan, Lincoln
Electricity: magnetically operated switches, magnets, and electr
Magnets and electromagnets
With magneto-mechanical motive device
335276, H01F 300
Patent
active
056465882
ABSTRACT:
An electromagnetic actuator is disclosed. The actuator includes a core having an inner and outer pole that defines a pole face. A coil of windings is disposed in the core and produces a magnetic field. An armature is moveable between first and second positions in response to the force produced by the magnetic field. A stroke elongation device is disposed adjacent to the outer pole piece and closely spaced from the armature. The stroke elongation device increases the pull-in force of the electromagnetic actuator.
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patent: 4633209 (1986-12-01), Belbel et al.
patent: 4688012 (1987-08-01), Bohg et al.
patent: 5355108 (1994-10-01), Morinigo et al.
Caterpillar Inc.
Donato Mario J.
Donovan Lincoln
Masterson David M.
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