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Title: US5402021: Magnetic propulsion system
[ Derwent Title ]


Country: US United States of America

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6 pages

 
Inventor: Johnson, Howard R.; Blacksburg, VA 24060

Assignee: None

Published / Filed: 1995-03-28 / 1993-05-24

Application Number: US1993000064930

IPC Code: Advanced: B65G 54/02; H02K 53/00;
Core: B65G 54/00; more...
IPC-7: B65G 35/06; H02K 41/00;

ECLA Code: B65G54/02; H02K53/00;

U.S. Class: Current: 310/012.24; 198/619; 310/012.07; 310/012.09; 310/012.21; 310/012.25; 310/012.26; 310/152;
Original: 310/012; 310/152; 198/619;

Field of Search: 310/012,152,46 198/619,805

Priority Number:
1993-05-24  US1993000064930

Abstract: A magnetic propulsion system including a plurality of specifically arranged permanent magnets and a magnetic vehicle propelled thereby along a path defined by the permanent magnets. The magnetic vehicle which is to be propelled includes a rigidly attached armature comprising several curved magnets. The propulsion system further includes two parallel walls of permanent magnets arranged so as to define the lateral sides of a vehicle path. Preferably, the walls are identical to one another except that the polarities of the magnets which define one wall are opposite from the polarities of the corresponding magnets in the opposite wall. A first wall, for example, includes a series of generally rectangular magnets, each magnet arranged with a North-to-South axis pointing longitudinally down the wall in the intended direction of vehicle travel. Each of the rectangular magnets is separated from the next successive rectangular magnet by a thinner magnet, which thinner magnet is arranged with its North-to-South axis pointing laterally toward the opposite wall and therefore perpendicular with respect to the North-to-South axis of the rectangular magnets. The opposite (or second) wall includes the same general arrangement of magnets, except that the North-to-South axis for each of the generally rectangular magnets is in a direction opposite from the direction of vehicle travel and the North-to-South axis of the thinner magnets points away from the first wall. In addition, the propulsion system includes several spin accelerators.

Attorney, Agent or Firm: Beaman & Beaman ;

Primary / Asst. Examiners: Stephan, Steven L.; Jones, Judson H.

INPADOC Legal Status: Show legal status actions

Family: None

First Claim:
Show all 19 claims
I claim:     1. A magnetic propulsion system comprising:
  • a vehicle having a rigidly attached magnetic armature, said magnetic armature including a first series of magnets positioned across said vehicle and extending generally from one lateral side of the vehicle to another lateral side of the vehicle, all of the magnets in said first series of magnets being generally parallel to one another;
  • a first magnetic wall disposed laterally adjacent said vehicle and extending longitudinally along a desired direction of vehicle travel, said first magnetic wall comprising a second series of magnets, each of the magnets in said second series having a particular size and a North-to-South axis pointing in the same direction as the desired direction of vehicle travel, each of said permanent magnets of said particular size in said second series being separated from the next successive permanent magnet in said second series by a thinner magnet, each of said thinner magnets having a pole-to-pole length which is shorter than the lateral width of said magnets of a particular size in said second series, said thinner magnets further having a North-to-South axis pointing perpendicular to the North-to-South axis of said magnets of a particular size in said second series and pointing generally toward a vehicle side of the first magnetic wall; and
  • a second magnetic wall disposed generally parallel to said first magnetic wall and laterally adjacent to said vehicle but opposite from said first magnetic wall, said second magnetic wall comprising a third series of magnets, each of said magnets in said third series having said particular size and a North-to-South axis pointing in an opposite direction from the desired direction of vehicle travel, each of the permanent magnets in said third series being separated from the next successive permanent magnet of said particular size in said third series by a thinner magnet, each of said thinner magnets in the second magnetic wall having a pole-to-pole length which is shorter than the lateral width of said magnets of a particular size in said third series, said thinner magnets in the second magnetic wall further having a North-to-South axis pointing in the same general direction as the North-to-South axis of the thinner magnets in the first magnetic wall;
  • wherein said first and second magnetic walls create magnetic fields which exert propelling forces on said armature and thereby cause the vehicle to accelerate in the desired direction of vehicle travel.


Background / Summary: Show background / summary

Drawing Descriptions: Show drawing descriptions

Description: Show description

Forward References: Show 23 U.S. patent(s) that reference this one

       
U.S. References: Go to Result Set: All U.S. references   |  Forward references (23)   |   Backward references (3)   |   Citation Link

Buy
PDF
Patent  Pub.Date  Inventor Assignee   Title
Get PDF - 11pp US4151431  1979-08 Johnson   Permanent magnet motor
Get PDF - 7pp US4215330  1980-06 Hartman  Hartman; Ethel Permanent magnet propulsion system
Get PDF - 7pp US4877983  1989-10 Johnson   Magnetic force generating method and apparatus
       
Foreign References: None

Other Abstract Info: DERABS G1995-139048 DERABS G1995-139048

Other References:
  • Advances in Permanent Magnetism, pp. 44-57 date unknown.
  • Scientific American, Jan. 1989, pp. 90-97.
  • Introduction to Magnetic Materials, pp. 129-135 date unknown.
  • Applications of Magnetism, pp. 42-47 date unknown.


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