Inductor devices – Coil or coil turn supports or spacers – Printed circuit-type coil
Reexamination Certificate
2006-10-24
2006-10-24
Mai, Anh (Department: 2832)
Inductor devices
Coil or coil turn supports or spacers
Printed circuit-type coil
C336S223000, C336S232000, C029S602100
Reexamination Certificate
active
07126451
ABSTRACT:
The present invention is to provide a process for the preparation of coil for an electric appliance by which a coil for electric appliances comprising an edgewise wound square coil having small intervals between coils and high quality can be easily prepared in good productivity and low-cost. The coil for electric appliance comprising edgewise wound square coil11is prepared by processing mechanically an electrically conductive flat plate to form plural strip-shaped coil fragments1A to1E, butting ends of the coil fragments1A to1E each other and welding the ends by beam to form plural one-turn square coils, each of the one-turn square coils having a ring-shape provided with a beginning end2A and a terminal end2B divided by a notch3whose location is different from one another in the one-turn square coils, and superposing the one-turn square coils on one another with shifting the locations of the notches3little by little in order so that the terminal and beginning ends of the one-turn square coils adjacent to each other are contact with each other to weld the terminal and beginning ends in the notch3, whereby the one-turn square coils are spirally combined.
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Fuji Jukogyo Kabushiki Kaisha
Mai Anh
Smith , Gambrell & Russell, LLP
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