Electrical generator or motor structure – Dynamoelectric – Rotary
Reexamination Certificate
2007-06-04
2010-12-28
Hanh, Nguyen N (Department: 2834)
Electrical generator or motor structure
Dynamoelectric
Rotary
Reexamination Certificate
active
07859163
ABSTRACT:
The laminar article for electrical use comprises a plurality of superposed first metal laminations fixed together. Each of the first laminations is provided with at least one fastener projecting from a first surface thereof and defining a recess in its opposite side. Each fastener of one lamination is arranged to fit into a recess of an adjacent lamination. The article presents second laminations interposed between at least two adjacent first laminations fixed together. The second laminations are provided with through apertures which are traversed by the fasteners which fix the adjacent first laminations together. The method consists of die-cutting a plurality of laminations from a metal sheet, rotating the die-cut laminations and superposing them, to then fix them together in predetermined manner. The laminations can be die-cut with a reference axis thereof rotated through a predetermined angle about a reference axis of the sheet metal, to limit the rotations to be imposed on the laminations during their mutual fixing.
REFERENCES:
patent: 4979285 (1990-12-01), Martin
patent: 5142178 (1992-08-01), Kloster et al.
patent: 5338996 (1994-08-01), Yamamoto
patent: 5923112 (1999-07-01), Bertocchi et al.
patent: 2002/0047463 (2002-04-01), Neuenschwander
patent: 2003/0127937 (2003-07-01), Kanno et al.
patent: 2382840 (1978-06-01), None
patent: M196A002566 (1997-10-01), None
Bertocchi Gianluca
Bonetti Daniele
Gardanini Gianfranco
Perucchi Maurizio
Corrada S.p.A.
Hanh Nguyen N
Ladas & Parry LLP
LandOfFree
Laminar article for electrical use and a method and machine... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Laminar article for electrical use and a method and machine..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Laminar article for electrical use and a method and machine... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4216905