Electricity: magnetically operated switches – magnets – and electr – Electromagnetically actuated switches – Plural magnets or flux sources
Patent
1991-11-22
1993-08-31
Donovan, Lincoln
Electricity: magnetically operated switches, magnets, and electr
Electromagnetically actuated switches
Plural magnets or flux sources
66219, H01H 900
Patent
active
052412881
ABSTRACT:
An electromagnetic selector device comprising a single permanent magnet and a plurality of electromagnets, which are excited in contrast or in agreement with the permanent magnet, to form a plurality of selection positions on two fronts along which run the elements to be selected.
REFERENCES:
patent: 3530686 (1970-09-01), Martinetz
patent: 3710594 (1973-01-01), Bourgeois
patent: 3948062 (1976-04-01), Sumitomo
patent: 3998073 (1976-12-01), Luth
patent: 4989424 (1991-02-01), Furia
Donovan Lincoln
Savio S.p.A.
Schaffer Robert D.
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