Electricity: magnetically operated switches – magnets – and electr – Electromagnetically actuated switches – Multiple contact type
Reexamination Certificate
2005-08-30
2005-08-30
Barrera, Ramon M. (Department: 2832)
Electricity: magnetically operated switches, magnets, and electr
Electromagnetically actuated switches
Multiple contact type
C335S131000
Reexamination Certificate
active
06937123
ABSTRACT:
An electromagnetic switch of an engine starter includes a pair of stationary contacts connectable to a starter motor, a movable contact disposed at a first distance from the pair of stationary contacts; a rod having one end that slidably supports the movable contact via an insulating member and a stopper that restricts axial movement of said movable contact, an electromagnetic coil unit that includes a plunger, a stator core, a spring that urges the movable contact against the stopper and an exciting coil which moves the rod by the plunger a second distance when excited, and an inclination rectifying member, disposed near the stationary contacts, for providing a rectifying surface disposed at a third distance from the movable contact to abut the movable contact when one of the stationary contacts wears to a preset degree. There is the following relationship between the first, second and third distances: the second distance>the third distance>the first distance.
REFERENCES:
patent: 5175524 (1992-12-01), Gotoh
patent: 5424700 (1995-06-01), Santarelli
patent: 2002/0145494 (2002-10-01), Andoh et al.
patent: A 2002-42627 (2002-02-01), None
Aoki Shuichi
Hasegawa Youichi
Imanishi Tomoya
Kajino Sadayoshi
Barrera Ramon M.
Denso Corporation
Oliff & Berridg,e PLC
Sawafuji Electric Co. Ltd.
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