Metal working – Method of mechanical manufacture – Electrical device making
Reexamination Certificate
2007-06-26
2007-06-26
Kim, Paul D. (Department: 3729)
Metal working
Method of mechanical manufacture
Electrical device making
C029S602100, C029S605000, C029S729000, C029S732000, C029S739000, C029S841000, C029S856000, C083S029000, C083S035000, C083S036000, C083S050000, C156S089110, C156S089120, C336S176000, C336S200000, C336S229000, C427S117000, C427S119000, C427S120000
Reexamination Certificate
active
10551433
ABSTRACT:
The present invention provides a process and an apparatus for the preparation of a motor coil by which a longitudinally wound motor coil, so called, can be easily prepared. First, a molded product10comprising a column part11, and a fin part12projected in the form of flat plate from an outer peripheral surface11A,11B,11C,11D of the column part to an outer side in a radial direction of the column part and helically continuing in an axis direction of the column part at predetermined intervals along the outer peripheral surface of column part is prepared. The column part11of the first molded product is punched out in an axis direction of the column part with retaining the fin part12to remove the column part, and the fin part12having helical shape left after the removal is coated with an insulating film. Then both sides of the fin part12in a direction F punching out the column part11are pressurized to deform the fin part12such that flat plate portions of the fin part12are superposed on one another.
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Etoh Koji
Fujiwara Motoyuki
Mabuchi Nobuyuki
Maruyama Jiro
Fuji Jukogyo Kabushiki Kaisha
Kim Paul D.
Smith , Gambrell & Russell, LLP
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