Method for constructing a liquid-impervious electric motor assembly

A method for constructing a liquid-impervious electric motor assembly comprising the steps of:

• providing an electric motor having an armature and associated drive shaft wherein said drive shaft is supported by a bearing bracket, said bearing bracket being provided with a notch, said motor further having an associated power cord extending therefrom;
• providing a multi-piece mold having an internal cavity which is larger in size than the size of said motor and with one part of said mold having an aperture for slidingly receiving said motor shaft and supporting said motor within said cavity, said one mold part further having a projection alignable with said notch of said bearing bracket, said mold further being separable about a plane substantially coincident with the central axis of said motor power cord when said motor is supported within said cavity;
• inserting said motor shaft into said aperture with said mold separated and moving said bearing bracket into abutment with said one mold part
• engaging said notch with said projection to retain said motor in a fixed orientation within said mold cavity when said motor shaft is inserted into said aperture and said bearing bracket is moved into abutment with said one mold part;
• closing said mold with said power cord exiting therefrom;
• injecting liquid resinous material into said closed mold to thereby form a jacket around said motor;
• allowing said resinous material to cool and harden;
• opening said mold;
• and
• ejecting said jacketed motor from said mold cavity.