Method for using plastic end turn cups for potting windings of electric motors

Claim 1

A METHOD OF EMBEDDING THE WINDINGS OF A DYNAMOELECTRIC MACHINE HAVING A CYLINDRICAL STRUCTURE INCLUDING AN ANNULAR CORE HAVING ANNULAR END FACES, SAID WINDINGS BEING LONGITUDINALLY DISPOSED IN AXIALLY ALIGNED SLOTS IN THE EXPOSED CYLINDRICA PERIPHERY OF THE ANNULAR CORE, SAID SLOTS EXTENDING FROM END FACE TO END FACE, AND SAID WINDINGS HAVING END TURNS EXTENDING AXIALLY FROM SAID SLOTS BEYOND EACH OF SAID ANNULAR END FACE OF SAID CORE, COMPRISING THE STEPS OF (1) DISPOSING A UNITARY ANNULAR END UP OF INSULATING MATERIAL ADJACENT EACH OF SAID ANNULAR END FACES AND OVER AND ABOUT AND IN ENCLOSING RELATIONSHIP WITH SAID ENT TURNS EXTENDING AXIALLY THEREBEYOND, EACH OF SAID END UPS HAVING RADICALLY SPACED ANNULAR FREE WALL ENDS IN POSITIONING AND ENCLOSING ENGAGEMENT WITH THE CYLINDRICAL STRUCTURE OF SAID MACHINE AT POINTS BOTH RADICALLY INWARD AND RADIALLY OUTWARDLY OF SAID END TURNS WITH WHICH IT IS RELATED AND AT LEAST ONE OF SUCH END CUPS HAVING A LIMITED OPENING FILL PASSAGE THEREIN SO THAT SAID END CUPS AND THE CYLINDRICAL STRUCTURE OF SAID MACHINE COOPERATE TO PROVIDE A SPACE ABOUT THEIR RELATED END TURNS IN COMMUNICATION WITH SAID SLOTS OPENING INTO SAID END FACES AND SAID FILL OPENING PASSAGE AND OTHERWISE TOTALLY ENCLOSED, (2) SEALING THE SLOTS IN THE PERIPHERY OFF THE CORE, (3) FILLING THROUGH SAID FILL OPENING SAID SLOTS AND SAID END CUPS AND SURROUNDING SAID WINDINGS INCLUDING SAID END TURNS AND THE INTERSTICS THERREBETWEEN WITH EMBEDDING MATERIAL, AND (4) HEATING SAID EMBEDDING MATERIAL TO CURE, SOLIDIFY AND INTERGRALLY BOND IT TO SAID END CUPS.

Claim 2

A METHOD OF EMBEDDING THE WINDINGS OF A DYNAMOELECTRIC MACHINE HAVING A CYLINDRICAL STRUCTURE INCLUDING AN ANNULAR CORE HAVING ANNULAR END FACES, SAID WINDINGS BEING LONGITUDINALLY DISPOSED IN AXIALLY ALIGNED SLOTS IN THE EXPOSED CYLINDRICA PERIPHERY OF THE ANNULAR CORE, SAID SLOTS EXTENDING FROM END FACE TO END FACE, AND SAID WINDINGS HAVING END TURNS EXTENDING AXIALLY FROM SAID SLOTS BEYOND EACH OF SAID ANNULAR END FACE OF SAID CORE, COMPRISING THE STEPS OF (1) DISPOSING A UNITARY ANNULAR END UP OF INSULATING MATERIAL ADJACENT EACH OF SAID ANNULAR END FACES AND OVER AND ABOUT AND IN ENCLOSING RELATIONSHIP WITH SAID ENT TURNS EXTENDING AXIALLY THEREBEYOND, EACH OF SAID END UPS HAVING RADICALLY SPACED ANNULAR FREE WALL ENDS IN POSITIONING AND ENCLOSING ENGAGEMENT WITH THE CYLINDRICAL STRUCTURE OF SAID MACHINE AT POINTS BOTH RADICALLY INWARD AND RADIALLY OUTWARDLY OF SAID END TURNS WITH WHICH IT IS RELATED AND AT LEAST ONE OF SUCH END CUPS HAVING A LIMITED OPENING FILL PASSAGE THEREIN SO THAT SAID END CUPS AND THE CYLINDRICAL STRUCTURE OF SAID MACHINE COOPERATE TO PROVIDE A SPACE ABOUT THEIR RELATED END TURNS IN COMMUNICATION WITH SAID SLOTS OPENING INTO SAID END FACES AND SAID FILL OPENING PASSAGE AND OTHERWISE TOTALLY ENCLOSED, (2) SEALING THE SLOTS IN THE PERIPHERY OFF THE CORE, (3) FILLING THROUGH SAID FILL OPENING SAID SLOTS AND SAID END CUPS AND SURROUNDING SAID WINDINGS INCLUDING SAID END TURNS AND THE INTERSTICS THERREBETWEEN WITH EMBEDDING MATERIAL, AND (4) HEATING SAID EMBEDDING MATERIAL TO CURE, SOLIDIFY AND INTERGRALLY BOND IT TO SAID END CUPS.