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Title: US5594289: Magnetic rotating apparatus
[ Derwent Title ]

Country: US United States of America

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8 pages

Inventor: Minato, Kohei; Shinjuku-Ku, Tokyo, Japan

Assignee: None

Published / Filed: 1997-01-14 / 1995-12-14

Application Number: US1995000574582

IPC Code: Advanced: H02K 21/12; H02K 25/00; H02K 29/06; H02K 29/10; H02K 53/00;
IPC-7: H02K 16/00;

ECLA Code: H02K25/00; H02K29/10;

U.S. Class: Current: 310/152; 310/156.01; 310/156.25;
Original: 310/152; 310/156;

Field of Search: 310/152,154,156 335/272

Priority Number:
1993-09-16  JP1993000230162

Abstract:     On a rotor which is fixed to a rotatable rotating shaft, a plurality of permanent magnets are disposed along the direction of rotation such that the same magnetic pole type thereof face outward. In the same way, balancers are disposed on the rotor for balancing the rotation of this rotor. Each of the permanent magnets is obliquely arranged with respect to the radial direction line of the rotor. At the outer periphery of the rotor, an electromagnet is disposed facing this rotor, with this electromagnet intermittently energized based on the rotation of the rotor. According to the magnetic rotating apparatus of the present invention, rotational energy can be efficiently obtained from permanent magnets. This is made possible by minimizing as much as possible current supplied to the electromagnets, so that only a required amount of electrical energy is supplied to the electromagnets.

Attorney, Agent or Firm: Marks & Murase L.L.P. ;

Primary / Asst. Examiners: Dougherty, Thomas M.;

Maintenance Status: R3 Reinstated

INPADOC Legal Status: Show legal status actions          Buy Now: Family Legal Status Report

Related Applications:
Application Number Filed Patent Pub. Date  Title
US1994000305563 1994-09-14       

Parent Case:     This application is a continuation of application Ser. No. 08/305,563 filed Sep. 14, 1994 now abandoned.

Designated Country: AT BE CH DE DK ES FR GB GR IE IT LI LU NL PT SE 

Family: Show 39 known family members

First Claim:
Show all 12 claims
What is claimed is:     1. A magnetic rotating apparatus comprising a rotating shaft; a rotor which is fixed to said rotating shaft and which has disposed thereon a plurality of permanent magnets and balancers for balancing rotation, the permanent magnets being disposed such that one magnetic polarity type is arranged along an outer peripheral surface in the direction of rotation and the other magnetic polarity type arranged along an inner peripheral surface, with each pair of corresponding magnetic poles of one and the other polarities obliquely arranged with respect to a radial line; an electromagnet, which is disposed facing this rotor, for developing a magnetic field which produces the other magnetic polarity type on the facing surface and energizing means for intermittently energizing said electromagnet means from where the leading permanent magnet, based on the rotation of said rotor, passes the facing surface of the electromagnet in the direction of rotation.

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Forward References: Show 32 U.S. patent(s) that reference this one

U.S. References: Go to Result Set: All U.S. references   |  Forward references (32)   |   Backward references (3)   |   Citation Link

Patent  Pub.Date  Inventor Assignee   Title
Get PDF - 4pp US4629921  1986-12 Gavaletz   Dynamoelectric machine rotor
Get PDF - 8pp US4751486  1988-06 Minato   Magnetic rotation apparatus
Get PDF - 13pp US5313159  1994-05 Allwine   Magnetic encoder with composite magnet
Foreign References:
Publication Date IPC Code Assignee   Title
Get PDF - 9pp EP0551533A1 1993-07  H02K 53/00 FORSCHUNGSGESELLSCHAFT MAGNETF Magnetic field energy converter for use as motor or generator 
Buy PDF FR2568067A 1986-01  H02K 53/00 LECAT JACKY Stand-alone magnetic motor with permanent magnets 
Buy PDF FR2568067 1986-01  H02K 53/00 LECAT JACKY Stand-alone magnetic motor with permanent magnets 
  JP61277365 1986-12       
  JP61277365 1986-12       
  JP01069275 1989-03       
  JP01069275 1989-03       
  JP01070361 1989-07       
  JP01170361 1989-07       

Other Abstract Info: DERABS G95-132935

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