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Title: US4215330: Permanent magnet propulsion system
[ Derwent Title ]


Country: US United States of America

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7 pages

 
Inventor: Hartman, Emil T.; Detroit, MI

Assignee: Hartman; Ethel, Richmond, IN
Helin, Estate of; Charles, Detroit, MI
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Published / Filed: 1980-07-29 / 1977-12-20

Application Number: US1977000862344

IPC Code: Advanced: H02K 53/00;
Core: more...
IPC-7: H01F 7/02;

ECLA Code: H02K53/00;

U.S. Class: Current: 335/306; 310/012.04; 310/012.24; 310/012.27;
Original: 335/306; 310/012;

Field of Search: 310/012-14,15 198/619,381 335/302,306

Priority Number:
1977-12-20  US1977000862344

Abstract:     A permanent magnet propulsion system wherein a steel ball is propelled up an inclined plane between two rows of permanent bar magnets, said magnets being in spaced relationship with all north seeking poles of one of the said rows facing in substantially the same direction and with all south seeking poles in the other row facing in substantially the same but opposite direction to the first of said rows. The magnetic axes of each of the magnets of the first said row are in staggered relationship to the axes of opposing magnets of the second said row. The magnetic field acting on the ball is configured whereby the ball after reaching the top of the inclined plane is able to drop from the said plane out of the field. A pair of parallel tracks positioned between the spaced rows of magnets guide the ball and a clamping means orient and retain the magnets.

Attorney, Agent or Firm: Rhodes, Alex ;

Primary / Asst. Examiners: Duggan, Donovan F.;

Family: None

First Claim:
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What I claim as new is:     1. A propulsion system wherein an ordered arrangement of permanent magnets provides the propulsion force comprising: a base structure; a pair of tracks mounted on top of said base structure, said tracks being in spaced parallel relationship to each other; a first row of permanent magnets mounted on top of said base structure, directly outboard from and adjacent to one of said tracks, with all of the north seeking poles of said row of magnets pointed towards said tracks and all of the south seeking poles pointed away from said track; a second row of permanent magnets mounted on top of said base structure, directly outboard from and adjacent to the other of said tracks, with all of the south seeking poles of said second row of magnets pointed towards said other track and all of the north seeking poles pointed away from the other said track; at least one ball positioned between and supported by said tracks, said ball being constructed from a ferro-magnetic material whereby the magnetic field of said first and second row of magnets propels said ball along said tracks; and a clamping means for positioning and retaining each of the magnets of said first and second rows onto said base structure.

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Forward References: Show 15 U.S. patent(s) that reference this one

       
U.S. References: Go to Result Set: All U.S. references   |  Forward references (15)   |   Backward references (2)   |   Citation Link

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Patent  Pub.Date  Inventor Assignee   Title
Get PDF - 8pp US3263796* 1966-08 Parke    
Get PDF - 6pp US4074153  1978-02 Baker   Magnetic propulsion device
  * some details unavailable
       
Foreign References: None

Other References:
  • Magnets, Underhill, p. 2, McGraw-Hill, 1929.
  • Angrist, "Perpetual Motion Machines," Scientific American, vol. 218, p. 119 (1968).


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