Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1977-09-26
1979-11-13
Skudy, R.
Electrical generator or motor structure
Dynamoelectric
Rotary
310 49R, 310216, 310259, 220 4B, H02K 500
Patent
active
041744853
ABSTRACT:
An electric motor has a stator construction which includes identical facing cup shaped members having a circumferential surface which includes a plurality of tabs and recesses. The tabs of one cup shaped member are dimensioned and configured for an engagement with the recesses of the other cup shaped member to positively position axially and radially each cup shaped member relative to the other. In one form the tabs may have a negative taper such that the base extremity of the tab has a smaller width than the other extremity of the tab. The negative taper produces a more pronounced interference fit and causes the cups to snap together without the necessity for cementing, welding, or other metal joining process. Each cup in one form is also provided at a plurality of angularly spaced recesses for receiving two identical generally planar plates having cooperating tabs and upstanding pole pieces. The recesses in one form extend along the circumferential surfaces to the tabs.
REFERENCES:
patent: 2417195 (1947-03-01), Hargreaves
patent: 3549918 (1970-12-01), Croymans
patent: 3633055 (1972-01-01), Maier
patent: 3693034 (1972-09-01), Inariba
patent: 4034247 (1977-07-01), Wagensonner
Kavanaugh Richard J.
Parikh Hasit H.
Soden George B.
North American Philips Corporation
Skudy R.
Smith Robert S.
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