Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1997-01-10
1998-05-12
Stephan, Steven L.
Electrical generator or motor structure
Dynamoelectric
Rotary
74 8915, H02K 706
Patent
active
057510830
ABSTRACT:
A magnetic screw conveying apparatus comprises a rotary shaft 11 rotatably supported, a stepmother 19 for driving the rotary shaft 11 to rotate, a male magnetic screw 15 having magnetized bands with a south pole S and a north pole N alternately magnetized and in parallel to each other on the outer periphery of the rotary shaft, a first slide table 21 slidably mounted on the rotary shaft 11, a first female magnetic screw 27 having magnetized bands with a south pole S and a north pole N alternately magnetized in a spiral form at a first inclination angle .theta.1 on an inner periphery surface of the first slide table, opposite to the male magnetic screw, a second slide table 22 slidably mounted on the rotary shaft 11, and a second female magnetic screw 28 having magnetized bands with a south pole S and a north pole N alternately magnetized in a spiral form at a second inclination angle .theta.2 on an inner periphery surface of the second slide table, opposite to the male magnetic screw, wherein, with the rotation of the rotary shaft 11 by the step motor 19, the first and second female magnetic screws 27 and 28 receive magnetic force from the male magnetic screw 15 respectively, thereby allowing the first and second slide tables 21 and 22 to move at different speeds.
REFERENCES:
patent: 5015936 (1991-05-01), Inoue
patent: 5611508 (1997-03-01), Palmero
Endo Tadashi
Tamura Akira
Uematsu Eiji
Yamada Osamichi
CKD Corporation
Jones Judson H.
Stephan Steven L.
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