Proximity switch

Electricity: measuring and testing – Magnetic – Displacement

Reexamination Certificate

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Details

C324S207260

Reexamination Certificate

active

06853182

ABSTRACT:
Proximity switch with a coil arrangement having at least one coil and an evaluation circuit arranged downstream of said coil arrangement for obtaining a switching signal when a trip feature of the coil arrangement approaches a desired response distance, wherein the at least one coil is formed by coil sections (8) connected electrically in series, preferably disposed next to one another, axially in parallel, with a same winding direction.

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patent: 4841163 (1989-06-01), Mueller
patent: 4879531 (1989-11-01), Tigges
patent: 5012206 (1991-04-01), Tigges
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patent: 5264733 (1993-11-01), Tigges
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patent: 6313724 (2001-11-01), Osterweil
patent: 6404192 (2002-06-01), Chiesi et al.
patent: 6545464 (2003-04-01), Tigges et al.
patent: 6611138 (2003-08-01), Vasiloiu
patent: 6633158 (2003-10-01), Shen et al.
patent: 2140379 (1978-06-01), None
patent: 4031252 (1991-10-01), None
patent: 06060783 (1994-03-01), None
patent: 07037476 (1995-02-01), None
Machine translation of JP 406060783 A, from JPO website, http://www.ipdl.jpo.go.jp.

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