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Electric motor assembly

  • US 20050184608A1
  • Filed: 04/29/2005
  • Published: 08/25/2005
  • Est. Priority Date: 10/31/2002
  • Status: Active Grant
First Claim
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1. An electric motor assembly comprising:

  • (a) a field case housing having;

    (i) a substantially cylindrical wall segment having a substantially constant wall thickness;

    (ii) an end segment having a thickness which is substantially the same as the substantially constant wall thickness of the wall segment;

    (iii) a flange around an open end of the housing having a thickness which is substantially the same as the substantially constant wall thickness of the wall segment, the flange having a plurality of flange reinforcing ribs connected to the wall segment, the flange having a plurality of apertures through which attachment members connect the housing to an end plate and having reinforcing bosses around the plurality of apertures; and

    (b) an end plate adapted to cover the open end of the housing attached to the flange;

    wherein the end segment, the wall segment and the flange are formed as a single, integral part and wherein the plurality of flange reinforcing ribs, the plurality of end segment reinforcing ribs and the substantially constant thicknesses are adapted to reduce warping of the housing as a result of a molding process.

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