Magnetically induced coupling and drive apparatus

Details Magnetically induced coupling and drive apparatus Magnetically induced coupling and drive apparatus

1998-02-24

1999-01-19

Ramirez, Nestor

Electrical generator or motor structure

Dynamoelectric

Rotary

492 52, 492 53, H02K 4906

Patent

active

058616926

ABSTRACT:
A magnetically induced coupling and drive apparatus (10) useful, for instance, for conveying webs utilizes magnetically coupled first and second rotatable elements (20,32)and means for rotating one of the rotatable elements (20, 32) which causes the simultaneous synchronous rotation of the other rotatable element. Both first and second rotatable elements (20, 32) include a magnetic core (22, 34), a bonding layer (28, 36) at least partially surrounding the magnetic core (22, 34), and a wear and abrasion resistant layer (26, 32) surrounding the bonding layer (28, 36). The means for rotating (60) rotating one of the rotatable elements (20, 32) includes a ferromagnetic stator member (62) integrally associated with one of said first and second rotatable elements (28, 36). The ferromagnetic stator member (62) has a plurality of spatially separated pole teeth (64a, 64b, 64c, 64d), wherein each of the pole teeth has an operably connected coil (66a, 66b, 66c, 66d) arranged for producing rotation of one of said first and second rotatable elements (20, 32) once the coil is energized.

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