Electromagnetic apparatus

Details Electromagnetic apparatus Electromagnetic apparatus

2006-05-23

2006-05-23

Nguyen, Tuyen T (Department: 2832)

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

With magneto-mechanical motive device

Reexamination Certificate

active

07049916

ABSTRACT:
An electromagnetic apparatus includes a solenoid having a movable core for being attracted to a fixed core when a coil is energized, a shaft coupled to the movable core for displacement in unison with the movable core, and a valve mechanism having a ball for selectively opening and closing a passageway between an inlet port and an outlet port in response to the displacement of the shaft. The movable core has a nonmagnetic layer formed on an outer surface thereof and having a predetermined thickness.

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