Single coil solenoid having a permanent magnet with bi-directional assist

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United States of America Patent

PATENT NO 8274348
APP PUB NO 20070257757A1
SERIAL NO

11780615

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Abstract

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A single coil solenoid includes a permanent magnet with bi-directional assist capabilities. The solenoid includes an armature that during de-energization of a single coil of wire is attracted to the permanent magnet thereby maintaining a hold position and during energization of the single coil has a polarity that repels the permanent magnet thereby creating a push/pull force. In this regard, the permanent magnet operates to not only hold the armature but also is used to push the armature when current is induced in the single coil.

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Patent Owner(s)

Patent OwnerAddress
WOODWARD GOVERNOR COMPANYLARGE AIRCRAFT CONTROLS DIVISION 501 NORTH SECOND STREET ROCKFORD ILLINOIS 61125-7001

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kolb, Richard P Prairie View, US 36 324
Nowobilski, Kevin G Orland Hills, US 4 106

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