Electrical generator or motor structure – Dynamoelectric – Rotary
Reexamination Certificate
2005-12-27
2005-12-27
Schuberg, Darren (Department: 2834)
Electrical generator or motor structure
Dynamoelectric
Rotary
C310S262000, C310S264000, C310S271000
Reexamination Certificate
active
06979928
ABSTRACT:
A magnetic shield assembly for confining rotor windings in a generator includes a substantially cylindrical tubular shield of two or more part-annular segments adapted to enclose the rotor windings; a plurality of axially spaced rings located on the tubular shield; and a plurality of annular spacers radially between the tubular shield and the plurality of rings and axially between adjacent rings to thereby present physical barriers to axial migration of the plurality of rings. In an alternative arrangement, the magnetic shield assembly for confining rotor windings in a generator includes a substantially cylindrical tubular shield of two or more part-annular segments adapted to enclose the rotor windings; a plurality of axially spaced rings located on the tubular shield, the rings having a radially inner surface with at least one surface depression therein; and epoxy adhesive located between the rings and the magnetic shield and bonded to the magnetic shield, with a release agent between the epoxy adhesive and the rings; and wherein the at least one surface depression is filled with cured epoxy adhesive, thus forming a mechanical barrier to axial migration of the rings on the magnetic shield.
REFERENCES:
patent: 5046359 (1991-09-01), Layport
patent: 5698917 (1997-12-01), Shultz
patent: 6239527 (2001-05-01), Kaminski et al.
patent: 6291919 (2001-09-01), Ganti et al.
patent: 6313561 (2001-11-01), Nygard et al.
patent: 6495942 (2002-12-01), Kaminski et al.
Jones Judson H.
Nixon & Vanderhye P.C.
Schuberg Darren
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