H - Electricity – 02 – K
Patent
H - Electricity
02
K
103/110, 310/131
H02K 15/14 (2006.01)
Patent
CA 1273391
Abstract of the Disclosure An electric motor assembly for a submers- ible pump has a base and an end ring which together directly, flatly engage opposite ends of a lamina- tion stack so that the stack is thus aligned with the base and the end ring. A shell is pressed over the lamination stack and the ends of the shell are roll-formed to grippingly engage shoulders on the base and the end ring while the stack is held in compression. The shell directly engages the outer cylindrical periphery of the laminations to estab- lish a continous ground path and also to preclude shifting of individual laminations. The base is molded of a synthetic resinous material and directly supports a sleeve bearing, and a plurality of fluid conduits in the base enable passage of coolant to the bearing during operation of the motor. In preferred forms, the base is provided with an edge for directly engaging one end of a series of pump stagings, and the base also has a shoulder for gripping engagement with a complementally formed edge of a pump casing.
518501
Nielsen Darryl M.
Wheeler Charles F.
Gowling Lafleur Henderson Llp
Marley Pump Company (the)
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