Electricity: circuit makers and breakers – Electric switch details – Contact
Reexamination Certificate
2011-08-02
2011-08-02
Luebke, Renee S (Department: 2833)
Electricity: circuit makers and breakers
Electric switch details
Contact
Reexamination Certificate
active
07989721
ABSTRACT:
A single-pole or multi-pole device for low-voltage systems, in particular a circuit breaker or a disconnector, which comprises: an outer casing containing for each pole at least one fixed contact and at least one mobile contact that can be coupled to/uncoupled from one another; a rotating element that comprises a shaped body made of insulating material comprising at least one seat for each pole of said switch, said seat being designed to house at least one mobile contact of a corresponding pole; a control mechanism operatively connected to the rotating element for enabling movement thereof; and one or more elements made of ferromagnetic material set in a position corresponding to at least one portion of the inner surface of said at least one seat of the mobile contact.
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patent: 5280258 (1994-01-01), Opperthauser
patent: 5539167 (1996-07-01), Hood et al.
patent: 5969308 (1999-10-01), Pever
patent: 6262642 (2001-07-01), Bauer
patent: 20100490 (2001-03-01), None
patent: 0177437 (1986-04-01), None
patent: 1215695 (2002-06-01), None
patent: WO-2005034162 (2005-04-01), None
Bergamini Alessio
Besana Stefano
ABB S.p.A.
Caroc Lheiren Mae
Connolly Bove & Lodge & Hutz LLP
Luebke Renee S
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