Inductor devices – Relatively movable core and coil
Reexamination Certificate
2011-03-22
2011-03-22
Nguyen, Tuyen (Department: 2832)
Inductor devices
Relatively movable core and coil
Reexamination Certificate
active
07911307
ABSTRACT:
The invention relates to a variable transformer comprising at least one primary winding and at least one secondary winding which can be rotated in relation thereto. The primary winding and the secondary winding are subdivided into at least two winding sections. The winding sections interlock in a comb-like manner and the flow of current of directly opposite winding sections is directed in the respective opposite direction.
REFERENCES:
patent: 3414683 (1968-12-01), Dolby
patent: 5677661 (1997-10-01), Jang
patent: 6008547 (1999-12-01), Dobler et al.
patent: 6483218 (2002-11-01), Petrinko
patent: 7471180 (2008-12-01), Seong
patent: 2003/0179105 (2003-09-01), Kazmierczak
patent: 37 24 349 (1989-02-01), None
patent: 195 45 220 (1997-06-01), None
patent: 0 598 924 (1994-06-01), None
patent: 0 680 060 (1995-11-01), None
patent: 0 722 811 (1996-07-01), None
patent: 97/38876 (1997-10-01), None
Albert Esser et al., “A New Approach to Power Supplies for Robots”, IEEE Transactions on Industry Applications, Sep./Oct. 1991, vol. 27, No. 5, pp. 872-875, XP-000264054 (cited in International Search Report).
Theodor Bödefeld et al., “Elektrische Maschinen”, Springer-Verlag, 1965, pp. 50-51 and 56-60.
International Search Report dated Mar. 2, 2005.
German Office Action dated Jul. 23, 2004.
Helfrich Jens
Luthardt Colin
Mast Jochen
Scheible Guntram
Schutz Jean
ABB Research Ltd
Buchanan & Ingersoll & Rooney PC
Nguyen Tuyen
LandOfFree
Rotary transformer does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Rotary transformer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rotary transformer will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2630216