Electromagnetic motor
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 18, 1986
Grant Date -
N/A
app pub date -
Jan 29, 1981
filing date -
Feb 6, 1980
priority date (Note) -
Expired
status (Latency Note)
Importance
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Abstract
The motor comprises a stator formed in one piece and having an opening formed therein, a yoke of high magnetic permeability and a coil wound round the yoke. The rotor comprises a shaft and a bar magnet. The opening has a first part all points of which are disposed at a first distance from the rotation axis of the rotor and a second part the points of which are disposed at second distances, different from the first distance, from that rotation axis. The invention is applicable particularly to stepping motors having a low consumption of electric current, e.g. for time pieces.
First Claim
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International Classification(s)
Cited Art Landscape
Patent Citation Ranking
- 8 Citation Count
- H02K Class
- 0 % this patent is cited more than
- 39 Age