Electromagnetic linear actuator with position sensor

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United States of America Patent

PATENT NO 6819208
SERIAL NO

09959327

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A ferromagnetic actuator having, in a housing, a ferromagnetic circuit defining an axial travel interval for an armature (22) of ferromagnetic material for axially driving a rod between two extreme positions in which the armature bears against poles of the ferromagnetic circuit, resilient return means provided to hold the valve at rest in a middle position between the extreme positions, and at least one coil carried by the circuit and enabling the armature to be brought in alternation into both positions. The rod carries a radially-magnetized bar of length not less than the travel distance of the armature, and the housing carries at least one magnetic flux sensor placed in a zone having low exposure to the field created by the coil(s).

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Patent Owner(s)

Patent OwnerAddress
JOHNSON CONTROLS AUTOMOTIVE ELECTRONICS18 CHAUSSEE JULES CESAR OSNY 95520

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fiaccabrino, Calogero Cergy, FR 6 156
Peghaire, Jean-Pierre Argenteuil, FR 3 93
Porcher, Yves Le-Plessis-Bouchard, FR 5 90

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