Pumps – Motor driven – Electric or magnetic motor
Patent
1997-10-21
1999-10-19
Thorpe, Timothy S.
Pumps
Motor driven
Electric or magnetic motor
310 68R, F04B 1704
Patent
active
059677635
ABSTRACT:
A positioning device for a miniature fan includes a coil seat including a number of annularly spaced poles each having a radially extending stem and a circumferential arcuate section. Each stem has a winding wound therearound, and each arcuate section has a first end edge and a second end edge. A circuit board is securely connected to the coil seat and includes a sensor element mounted thereon. The sensor element is located on a vertical line extending from one of the first end edge and the second end edge of one of the poles.
REFERENCES:
patent: 5010263 (1991-04-01), Murata
patent: 5093599 (1992-03-01), Horng
patent: 5097170 (1992-03-01), Baines
patent: 5245236 (1993-09-01), Horng
patent: 5510726 (1996-04-01), Brady
patent: 5831359 (1998-11-01), Jeske
Gartenberg Ehud
Thorpe Timothy S.
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