Plastic and nonmetallic article shaping or treating: processes – Mechanical shaping or molding to form or reform shaped article – To produce composite – plural part or multilayered article
Patent
1976-06-11
1978-04-11
Hoag, Willard E.
Plastic and nonmetallic article shaping or treating: processes
Mechanical shaping or molding to form or reform shaped article
To produce composite, plural part or multilayered article
264272, 264311, 264328, B29C 504, B29F 100
Patent
active
040839176
ABSTRACT:
A method for making a stator for an electric machine which is simple, relatively inexpensive and permits mass production of motors having excellent operating characteristics including accurate centering of the rotor for silent and vibration-free function and efficient cooling of the windings and bearings. The method consists of the steps of supporting casings in a position surrounding the winding heads in sealing relation with opposite ends of a lamination stack, positioning a mandrel in the stator cavity having locating means engageable with the stator stack and means on its outer surface to define axial and radial locating positions for bearing shields. The casings, laminations and mandrel define a pair of enclosed cavities at opposite ends of the stator stack. A curable molding material is injected into the cavities by means of centrifugal force and thereafter the molding material is cured to complete the stator assembly.
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patent: 3938928 (1976-02-01), Andrews
Hallerback Stig Lennart
Lachonius Leif
Hoag Willard E.
Renz Jr. Eugene E.
SKF Industrial Trading and Development Company B.V.
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