Wave transmission lines and networks – Coupling networks – Frequency domain filters utilizing only lumped parameters
Reexamination Certificate
2005-08-09
2005-08-09
Ham, Seungsook (Department: 2817)
Wave transmission lines and networks
Coupling networks
Frequency domain filters utilizing only lumped parameters
C336S090000, C336S198000, C336S232000
Reexamination Certificate
active
06927650
ABSTRACT:
A common mode choke coil comprises: a holder including side walls which have wire guide strips respectively formed at their sides and which have vertical guide grooves and horizontal flange stoppers both formed at their inner side surfaces; a coil assembly with edgewise windings of a rectangular wire provided around a bobbin with flanges; and a core securing plate spring, wherein the coil assembly is fixedly set in a correct position inside the holder such that protrusions formed at the flanges are put through the guide grooves thereby fixedly holding the bobbin in place horizontally while the flanges are locked by the flange stoppers thereby fixedly holding the bobbin in place vertically, and wherein lead wires of the edgewise windings are bent at upper ends of the wire guide strips, and then extend along the wire guide strips.
REFERENCES:
patent: 4352080 (1982-09-01), Mitsui et al.
patent: 5793273 (1998-08-01), Yamaguchi et al.
patent: 2004/0041676 (2004-03-01), Okamoto
patent: 2004/0100347 (2004-05-01), Okamoto
patent: 09260164 (1997-10-01), None
patent: 10241955 (1998-09-01), None
patent: 2000200723 (2000-07-01), None
patent: 2001274023 (2001-10-01), None
Ham Seungsook
Minebea Co. Ltd.
Oliff & Berridg,e PLC
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