Electricity: magnetically operated switches – magnets – and electr – Electromagnetically actuated switches – With arc-suppression or extinguishing means
Patent
1994-05-09
1995-05-23
Donovan, Lincoln
Electricity: magnetically operated switches, magnets, and electr
Electromagnetically actuated switches
With arc-suppression or extinguishing means
335 16, 218 1, H01H 930
Patent
active
054185114
ABSTRACT:
Molded insulating shell halves are secured together around a blowout coil, stationary and movable contacts to pivotally trap an armature assembly therebetween. Windows are provided in the shell halves to ventilate the electromagnet coil during operation. The electromagnet is removable through the window without disassembly of the contactor. Contact and armature adjustment is accomplished through additional window openings. An arc chute having left and right-hand arc extinguishing chambers each sub-divided into upper and front chambers splits the arc into four series segments and increases the overall length of the arc significantly over similar prior art devices.
REFERENCES:
patent: 3511950 (1968-12-01), Boyd
patent: 3516090 (1970-06-01), Hurtle et al.
patent: 4019006 (1977-04-01), Strossner
patent: 4158829 (1979-06-01), Gutberlet
patent: 4866266 (1989-09-01), Hisatsune et al.
patent: 5004874 (1991-04-01), Theisen et al.
patent: 5051589 (1991-09-01), Kruglyansky
Banach Frederick F.
Jackson John S.
Malliet Randal V.
McGinnis Peter J.
Theisen Peter J.
Donovan Lincoln
Eaton Corporation
Vande Zande L. G.
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