Variable force solenoid

Details Variable force solenoid Variable force solenoid

2007-04-24

2007-04-24

Barrera, Ramon M. (Department: 2832)

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

With magneto-mechanical motive device

C335S261000, C335S270000, C335S279000, C335S281000

Reexamination Certificate

active

10863586

ABSTRACT:
A variable force solenoid is described, wherein the solenoid has a relatively long stroke and a relatively low profile. The solenoid includes an armature with at least one tapered surface and a pole piece with at least one tapered surface. The armature and the pole piece may each be provided with multiple tapers on more than one surface thereof.

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patent: 2002/0104977 (2002-08-01), Bircann et al.
Electromagnetic Devices by Herbert C. Roters, First Edition, 1941.

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