IP Library Granted Patent US 8,643,249
Granted Patent B2
US 8,643,249 · App. 13/609,237 · Granted Feb 4, 2014

Electrostatic generator/motor configurations

Inventor: Richard F. Post (Walnut Creek, CA)
Assignee: Lawrence Livermore National Security, LLC
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Quick Facts
Patent No.
US 8,643,249
App. No.
13/609,237
Granted
Feb 4, 2014
Kind
B2
Abstract

Electrostatic generators/motors designs are provided that generally may include a first cylindrical stator centered about a longitudinal axis; a second cylindrical stator centered about the axis, a first cylindrical rotor centered about the axis and located between the first cylindrical stator and the second cylindrical stator. The first cylindrical stator, the second cylindrical stator and the first cylindrical rotor may be concentrically aligned. A magnetic field having field lines about parallel with the longitudinal axis is provided.

Claims (19)

1. An apparatus comprising:

a first cylindrical stator centered about a longitudinal axis;

a second cylindrical stator centered about said axis;

a first cylindrical rotor centered about said axis and located between said first cylindrical stator and said second cylindrical stator, wherein said first cylindrical stator and said second cylindrical stator and said first cylindrical rotor are concentrically aligned, wherein said first cylindrical stator comprises a first plurality of periodically spaced elements, wherein said second cylindrical stator comprises a second plurality of periodically spaced elements and wherein said first cylindrical rotor comprises a third plurality of periodically spaced elements; and

a solenoid coil that is coaxial with said longitudinal axis and configured for providing a magnetic field having field lines about parallel with said longitudinal axis.

2. The apparatus of claim 1 , wherein each element of said first plurality and said second plurality and said third plurality has a thickness that varies with azimuth.

3. The apparatus of claim 2 , wherein said each element comprises a shape having no sharp corners.

4. The apparatus of claim 1 , wherein said first cylindrical stator, said second cylindrical stator and said first cylindrical rotor each comprise electrically conductive material, said apparatus further comprising means for positively or negatively charging said first cylindrical stator and said second cylindrical stator, said apparatus further comprising means for electrically grounding said first cylindrical rotor.

5. The apparatus of claim 1 , wherein said solenoid coil comprises a superconducting coil.

6. The apparatus of claim 1 , wherein at least one of said first cylindrical stator, said second cylindrical stator and said first cylindrical rotor comprises dielectric material.

7. A method, comprising:

providing a first cylindrical stator centered about a longitudinal axis;

providing a second cylindrical stator centered about said axis;

providing a first cylindrical rotor centered about said axis and located between said first cylindrical stator and said second cylindrical stator, wherein said first cylindrical stator and said second cylindrical stator and said first cylindrical rotor are concentrically aligned, wherein said first cylindrical stator comprises a first plurality of periodically spaced elements, wherein said second cylindrical stator comprises a second plurality of periodically spaced elements and wherein said first cylindrical rotor comprises a third plurality of periodically spaced elements;

providing, from a solenoid coil that is coaxial with said longitudinal axis, a magnetic field having field lines about parallel with said longitudinal axis; and

rotating said rotor about said axis.

8. The method of claim 7 , wherein each element of said first plurality and said second plurality and said third plurality has a thickness that varies with azimuth.

9. The method of claim 7 , wherein said first cylindrical stator, said second cylindrical stator and said first cylindrical rotor each comprise electrically conductive material, said method further comprising positively or negatively charging said first cylindrical stator and said second cylindrical stator, and electrically grounding said first cylindrical rotor.

10. The method of claim 7 , wherein at least one of said first cylindrical stator, said second cylindrical stator and said first cylindrical rotor comprises dielectric material.

Assignments (2)
CONFIRMATORY LICENSE Recorded Dec 5, 2012
From: LAWRENCE LIVERMORE NATIONAL SECURITY, LLC
To: U.S. DEPARTMENT OF ENERGY
Reel/Frame 029409/0703 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 12, 2012
From: POST, RICHARD F.
To: LAWRENCE LIVERMORE NATIONAL SECURITY, LLC
Reel/Frame 029280/0247 →
Continuity (6)
Continuation 12894612 · Sep 30, 2010
Continuation In Part 11932329 · Oct 31, 2007
Provisional Application 60971186 · Sep 10, 2007
Provisional Application 61366293 · Jul 21, 2010
Provisional Application 61314467 · Mar 16, 2010
Related Publication 20130049529A1 · Feb 28, 2013