Linear solenoid designed to ensure required amount of...

Details Linear solenoid designed to ensure required amount of... Linear solenoid designed to ensure required amount of...

2007-10-09

2007-10-09

Barrera, Ramon M. (Department: 2832)

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

With magneto-mechanical motive device

C335S227000, C335S261000, C335S279000, C335S281000

Reexamination Certificate

active

11187901

ABSTRACT:
A linear solenoid is provided which works to pull a plunger to a stator magnetically. The plunger and the stator are aligned to have ends opposed to each other. The end of the stator has formed therein a recess into which the end of the plunger is insertable. The recess has an inward magnetic attraction surface formed on a peripheral edge. The plunger has an outward magnetic attraction surface formed on an outer peripheral edge of the end thereof which faces the inward magnetic attraction surface through a magnetic gap. The inward and outward magnetic attraction surfaces have greater areas defining the magnetic gap, thereby ensuring a greater amount of magnetic attraction pulling the plunger to the stator upon energization of a coil. The recess may alternatively be formed in the end of the plunger.

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