Bushing-type transformer for a switch gear unit

Inductor devices – Interlinked coils or windings – Coil surrounding linear conductor

Reexamination Certificate

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Details

C336S175000

Reexamination Certificate

active

06987438

ABSTRACT:
The invention relates to a bushing-type transformer (1) comprising a conductive element (5) forming the primary conductor, supporting a flat contact surface (7) on one end thereof and a plug-in contact element (8) on the other end thereof, whereby the plug-in contact element (8) is embodied in a rotationally symmetrical manner and the rotational axis is arranged parallel to the flat contact surface (7). Said transformer also comprises a secondary winding (6) which surrounds the conductive piece (5) in an annular manner. The conductive element (5) extends in a linear manner and the plug-in contact element (8) is arranged on the surface area of the conductive piece (5).

REFERENCES:
patent: 3668513 (1972-06-01), Tsubouchi et al.
patent: 3996543 (1976-12-01), Conner et al.
patent: 4104497 (1978-08-01), Brealey
patent: 5175525 (1992-12-01), Smith
patent: 5376911 (1994-12-01), Stenkvist
patent: 3313192 (1983-04-01), None
patent: 4412784 (1995-10-01), None
patent: 297 14253 (1997-10-01), None
patent: 29714 253 (1997-10-01), None
patent: 29714253 (1997-10-01), None
patent: 19958782 (1999-11-01), None
patent: 0 446 837 (1991-03-01), None
patent: 0 645782 (1994-07-01), None
patent: 11285112 (1999-10-01), None
patent: WO 91/19035 (1991-12-01), None

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