Metal working – Method of mechanical manufacture – Electrical device making
Reexamination Certificate
2011-06-21
2011-06-21
Phan, Thiem (Department: 3729)
Metal working
Method of mechanical manufacture
Electrical device making
C029S596000, C029S606000
Reexamination Certificate
active
07963025
ABSTRACT:
A stator for an inner rotor type motor includes a stator core1, insulating members10and winding wire3, 4. The stator core1includes: four divisional core elements6each integrally formed by setting up one tooth2to one yoke portion8; and four divisional yoke elements7. A rotor opening11is formed on top portions of the teeth2by arranging the divisional core elements6so that the teeth2are radially disposed. Four slots9are formed by respectively arranging the divisional yoke elements7between the yoke portions8of the adjacent divisional core elements6. The winding wire3, 4is wound on the teeth2. An inner surface of each yoke portion8is substantially perpendicular to the central axis of the corresponding tooth2while the insulating member10is provided on side surfaces of each tooth2.
REFERENCES:
patent: 2967346 (1961-01-01), McMaster et al.
patent: 3626219 (1971-12-01), Lease
patent: 5763978 (1998-06-01), Uchida et al.
patent: 6476533 (2002-11-01), Akutsu et al.
Patent Abstracts of Japan, Publication No. 2000-358346, Dec. 26, 2000, Matsushita Seiko Co. Ltd.
Kratz Quintos & Hanson, LLP
Matsushita Electric - Industrial Co., Ltd.
Phan Thiem
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