Electricity: magnetically operated switches – magnets – and electr – Electromagnetically actuated switches – Polarity-responsive
Patent
1977-07-05
1979-02-27
Harris, George
Electricity: magnetically operated switches, magnets, and electr
Electromagnetically actuated switches
Polarity-responsive
335230, H01H 5122
Patent
active
041421663
ABSTRACT:
An electro-magnet comprising a stationary system having a coil, a core and tationary flux-conductive yokes and with one part movable in longitudinal translation, comprising one permanent magnet whose magentizing axis is perpendicular to the moving direction of said movable part and two flux-conductive armatures secured to each pole face of said magnet in perpendicular relationship to said magnetizing axis, one of said flux-conductive armatures is so bent and/or shaped as to define, two air-gap regions arranged on either side of said magnetizing axis, whereas two yoke ends parallel to said magnetizing axis are placed in said air-gap regions.
REFERENCES:
patent: 3792390 (1974-02-01), Boyd
patent: 3814376 (1974-06-01), Reinicke
patent: 3859547 (1975-01-01), Massie
Chaskin Jay L.
Harris George
Manufacture Francaise d'Appareils Electriques de Mesures dite Ma
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